Update the X509v3 name parsing to allow multiple xn-- international
domain name indicators in a name. Previously, only allowed one at
the beginning of a name, which was wrong.
(Imported from upstream's 31d1d3741f16bd80ec25f72dcdbf6bbdc5664374)
Change-Id: I93f1db7a5920305569af23f9f2b30ab5cc226521
Reviewed-on: https://boringssl-review.googlesource.com/13984
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The new APIs are SSL_CTX_set_strict_cipher_list() and
SSL_set_strict_cipher_list(). They have two motivations:
First, typos in cipher lists can go undetected for a long time, and
can have surprising consequences when silently ignored.
Second, there is a tendency to use superstition in the construction of
cipher lists, for example by "turning off" things that do not actually
exist. This leads to the corrosive belief that DEFAULT and ALL ought
not to be trusted. This belief is false.
Change-Id: I42909b69186e0b4cf45457e5c0bc968f6bbf231a
Reviewed-on: https://boringssl-review.googlesource.com/13925
Commit-Queue: Matt Braithwaite <mab@google.com>
Reviewed-by: Matt Braithwaite <mab@google.com>
The two non-trivial changes are:
1. The public API now queries it out of the session. There is a long
comment over the old field explaining why the state was separate, but
this predates EMS being forbidden from changing across resumption. It
is not possible for established_session and the socket to disagree on
EMS.
2. Since SSL_HANDSHAKE gets reset on each handshake, the check that EMS
does not change on renego looks different. I've reworked that function a
bit, but it should have the same effect.
Change-Id: If72e5291f79681381cf4d8ceab267f76618b7c3d
Reviewed-on: https://boringssl-review.googlesource.com/13910
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This effectively reverts b9824e2417. This
error seems to have mostly just caused confusion in logs and the
occasional bug around failing to ERR_clear_error. Consumers tend to
blindly call SSL_shutdown when tearing down an SSL (to avoid
invalidating sessions). This means handshake failures trigger two
errors, which is screwy.
Go back to the old behavior where SSL_shutdown while SSL_in_init
silently succeeds.
Change-Id: I1fcfc92d481b97c840847dc39afe59679cd995f2
Reviewed-on: https://boringssl-review.googlesource.com/13909
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
asn1_template_noexp_d2i call ASN1_item_ex_free(&skfield,...) on error.
Reworked error handling in asn1_item_ex_combine_new:
- call ASN1_item_ex_free and return the correct error code if
ASN1_template_new failed.
- dont call ASN1_item_ex_free if ASN1_OP_NEW_PRE failed.
Reworked error handing in x509_name_ex_d2i and x509_name_encode.
(Imported from upstream's 748cb9a17f4f2b77aad816cf658cd4025dc847ee.)
I believe the tasn1_new.c change is a no-op since we have no
ASN1_OP_NEW_PRE hooks anymore. I'm not sure what the commit message is
referring to with ASN1_template_new. It also seems odd as
ASN1_item_ex_free should probably be able to survive *pval being NULL.
Whatever.
We'd previously tried to fix x509_name_ex_d2i, but I think ours wasn't
quite right. (This thing is a mess...) I've aligned that function with
upstream.
Change-Id: Ie71521cd8a1ec357876caadd13be1ce247110f76
Reviewed-on: https://boringssl-review.googlesource.com/13831
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
(Imported from upstream's 1222d273d36277f56c3603a757240c386d55f318.)
We'd fixed half of these, but the other half are probably unreachable
from code that ran under malloc tests, so we never noticed. It's
puzzling why upstream did both this and
166e365ed84dfabec3274baf8a9ef8aa4e677891. It seems you only need one of
them.
Change-Id: I08074358134180c6661600b66958ba861e7726fb
Reviewed-on: https://boringssl-review.googlesource.com/13832
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
These were added in an attempt to deal with the empty vs. NULL confusion
in PKCS#12. Instead, PKCS8_encrypt and PKCS8_decrypt already treated
NULL special. Since we're stuck with supporting APIs like those anyway,
Chromium has been converted to use that feature. This cuts down on the
number of APIs we need to decouple from crypto/asn1.
BUG=54
Change-Id: Ie2d4798d326c5171ea5d731da0a2c11278bc0241
Reviewed-on: https://boringssl-review.googlesource.com/13885
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This reduces us from seven different configuration patterns to six (see
comment #2 of linked bug). I do not believe there is any behavior change
here as SSL_set_SSL_CTX already manually copied the field. It now gives
us a nice invariant: SSL_set_SSL_CTX overrides all and only the
dual-SSL/SSL_CTX options hanging off of CERT.
BUG=123
Change-Id: I1ae06b791fb869917a6503cee41afb2d9be53d89
Reviewed-on: https://boringssl-review.googlesource.com/13865
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Recent changes added SSL-level setters to these APIs. Unfortunately,
this has the side effect of breaking SSL_set_SSL_CTX, which is how SNI
is typically handled. SSL_set_SSL_CTX is kind of a weird function in
that it's very sensitive to which of the hodge-podge of config styles is
in use. I previously listed out all the config styles here, but it was
long and unhelpful. (I counted up to 7.)
Of the various SSL_set_SSL_CTX-visible config styles, the sanest seems
to be to move it to CERT. In this case, it's actually quite reasonable
since they're very certificate-related.
Later we may wish to think about whether we can cut down all 7 kinds of
config styles because this is kinda nuts. I'm wondering we should do
CERT => SSL_CONFIG, move everything there, and make that be the same
structure that is dropped post-handshake (supposing the caller has
disavowed SSL_clear and renego). Fruit for later thought. (Note though
that comes with a behavior change for all the existing config.)
Change-Id: I9aa47d8bd37bf2847869e0b577739d4d579ee4ae
Reviewed-on: https://boringssl-review.googlesource.com/13864
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
(Imports upstream's abb8c44fbaf6b88f4f4879b89b32e423aa75617b.)
Note that the AVX512 code is disabled for now. This just reduces the
diff with upstream.
Change-Id: I61da414e53747ecc869f27883e6ab12c1f8513ff
Reviewed-on: https://boringssl-review.googlesource.com/13779
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
(Imports upstream's d89773d659129368a341df746476da445d47ad31.)
In order to minimize dependency on assembler version a number of
post-SSE2 instructions are encoded manually. But in order to simplify
the procedure only register operands are considered. Non-register
operands are passed down to assembler. Module in question uses pshufb
with memory operands, and old [GNU] assembler can't handle it.
Fortunately in this case it's possible skip just the problematic
segment without skipping SSSE3 support altogether.
Change-Id: Ic3ba1eef14170f9922c2cc69e0d57315e99a788b
Reviewed-on: https://boringssl-review.googlesource.com/13778
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
(Imports upstream's 3ba1ef829cf3dd36eaa5e819258d90291c6a1027.)
Original strategy for page-walking was adjust stack pointer and then
touch pages in order. This kind of asks for double-fault, because
if touch fails, then signal will be delivered to frame above adjusted
stack pointer. But touching pages prior adjusting stack pointer would
upset valgrind. As compromise let's adjust stack pointer in pages,
touching top of the stack. This still asks for double-fault, but at
least prevents corruption of neighbour stack if allocation is to
overstep the guard page.
Also omit predict-non-taken hints as they reportedly trigger illegal
instructions in some VM setups.
Change-Id: Ife42935319de79c6c76f8df60a76204c546fd1e0
Reviewed-on: https://boringssl-review.googlesource.com/13775
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
(Imports upstream's adc4f1fc25b2cac90076f1e1695b05b7aeeae501.)
Some OSes, *cough*-dows, insist on stack being "wired" to
physical memory in strictly sequential manner, i.e. if stack
allocation spans two pages, then reference to farmost one can
be punishable by SEGV. But page walking can do good even on
other OSes, because it guarantees that villain thread hits
the guard page before it can make damage to innocent one...
Change-Id: Ie1e278eb5982f26e596783b3d7820a71295688ec
Reviewed-on: https://boringssl-review.googlesource.com/13768
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This imports the changes to x86_64-xlate from upstream's
9c940446f614d1294fa197ffd4128206296b04da. It looks like it's a fix,
although it doesn't alter our generated asm at all. Either way, no point
in diverging from upstream on this point.
Change-Id: Iaedf2cdb9580cfccf6380dbc3df36b0e9c148d1c
Reviewed-on: https://boringssl-review.googlesource.com/13767
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
(Imports upstream's a3b5684fc1d4f3aabdf68dcf6c577f6dd24d2b2d.)
CFI directives annotate instructions that are significant for stack
unwinding procedure. In addition to directives recognized by GNU
assembler this module implements three synthetic ones:
- .cfi_push annotates push instructions in prologue and translates to
.cfi_adjust_cfa_offset (if needed) and .cfi_offset;
- .cfi_pop annotates pop instructions in epilogue and translates to
.cfi_adjust_cfs_offset (if needed) and .cfi_restore;
- .cfi_cfa_expression encodes DW_CFA_def_cfa_expression and passes it
to .cfi_escape as byte vector;
CFA expression syntax is made up mix of DWARF operator suffixes [subset
of] and references to registers with optional bias. Following example
describes offloaded original stack pointer at specific offset from
current stack pointer:
.cfi_cfa_expression %rsp+40,deref,+8
Final +8 has everything to do with the fact that CFA, Canonical Frame
Address, is reference to top of caller's stack, and on x86_64 call to
subroutine pushes 8-byte return address.
Change-Id: Ic675bf52b5405000be34e9da31c9cf1660f4b491
Reviewed-on: https://boringssl-review.googlesource.com/13765
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
|SSL_SESSION_from_bytes| now takes an |SSL_CTX*|, from which it uses the
|X509_METHOD| and buffer pool. This is our API so we can do this.
This also requires adding an |SSL_CTX*| argument to |SSL_SESSION_new|
for the same reason. However, |SSL_SESSION_new| already has very few
callers (and none in third-party code that I can see) so I think we can
get away with this.
Change-Id: I1337cd2bd8cff03d4b9405ea3146b3b59584aa72
Reviewed-on: https://boringssl-review.googlesource.com/13584
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
In honor of CVE-2016-9244. Although that particular bug BoGo was already
testing since it uses 16 bytes here.
The empty session ID case is particularly worth testing to make sure we
don't get confused somewhere. RFC 5077 allows clients to offer tickets
with no session ID. This is absurd since the client then has no way of
detecting resumption except by lookahead. We'll never do this as a
client, but should handle it correctly as a server.
Change-Id: I49695d19f03c4efdef43749c07372d590a010cda
Reviewed-on: https://boringssl-review.googlesource.com/13740
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We already have some cases where the default is DECODE_ERROR and, rather
than have two defaults, just harmonise on that. (INTERNAL_ERROR might
make more sense in some cases, but we don't want to have to remember
what the default is in each case and nobody really cares what the actual
value is anyway.)
Change-Id: I28007898e8d6e7415219145eb9f43ea875028ab2
Reviewed-on: https://boringssl-review.googlesource.com/13720
Reviewed-by: Adam Langley <agl@google.com>
Before, attempting to build the code using Yasm as the assembler would
result in warnings like this:
warning : no non-local label before `.chacha20_consts'
Precede the local labels with a non-local label to suppress these
warnings.
It isn't clear why these labels are defined as local labels instead of
regular labels. Making them non-local may be a better idea.
For reference, Yasm's interpretation of local labels is described
succinctly at
https://www.tortall.net/projects/yasm/manual/html/nasm-local-label.html.
Change-Id: Ifc92de7fd7379859fe33f1137ab20b6ec282cd0b
Reviewed-on: https://boringssl-review.googlesource.com/13384
Reviewed-by: Adam Langley <agl@google.com>
This ABCD thing with multiple ways to enter the same function is
confusing. ClientHello processing is the most egregious of these, so
split it up ahead of time as an intermediate step.
States remain named as-is due to them being exposed as public API. We
should have a story for which subset of states we need to promise as
public API and to intentionally break all other cases (map to some
generic value) before we go too far there.
BUG=128
Change-Id: Id9d28c6de14bd53c3294552691cebe705748f489
Reviewed-on: https://boringssl-review.googlesource.com/13563
Reviewed-by: Adam Langley <agl@google.com>
Right now the only way to set an SCT list is the per-context function
SSL_CTX_set_signed_cert_timestamp_list. However this assumes that all the
SSLs generated from a SSL_CTX share the same SCT list, which is wrong.
In order to avoid memory duplication in case SSL_CTX has its own list, a
CRYPTO_BUFFER is used for both SSL_CTX and SSL.
Change-Id: Id20e6f128c33cf3e5bff1be390645441be6518c6
Reviewed-on: https://boringssl-review.googlesource.com/13642
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
ssl_get_new_session would stash a copy of the configured hostname
into the SSL_SESSION on the server. Servers have no reason to
configuring that anyway, but, if one did, we'd leak when filling in
the client-supplied SNI later.
Remove this code and guard against this by remembering to OPENSSL_free
when overwriting that field (although it should always be NULL).
Reported-By: Robert Swiecki <swiecki@google.com>
Change-Id: Ib901b5f82e5cf818060ef47a9585363e05dd9932
Reviewed-on: https://boringssl-review.googlesource.com/13631
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The TLS 1.2 and 1.3 state machines do the exact same thing at the
beginning. Let them process the ClientHello extensions, etc., and
finalize the certificate in common code. Once we start picking
parameters, we begin to diverge. Everything before this point is
arguably part of setting up the configuration, which is
version-agnostic.
BUG=128
Change-Id: I293ea3087ecbc3267bd8cdaa011c98d26a699789
Reviewed-on: https://boringssl-review.googlesource.com/13562
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The version negotiation logic was a little bizarrely wedged in the
middle of the state machine. (We don't support server renegotiation, so
have_version is always false here.)
BUG=128
Change-Id: I9448dce374004b92e8bd5172c36a4e0eea51619c
Reviewed-on: https://boringssl-review.googlesource.com/13561
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The current X25519 assembly has a 352-byte stack frame and saves the
regsiters at the bottom. This means that the CFI information cannot be
represented in the “compact” form that MacOS seems to want to use (see
linked bug).
The stack frame looked like:
360 CFA
352 return address
⋮
56 (296 bytes of scratch space)
48 saved RBP
40 saved RBX
32 saved R15
24 saved R14
16 saved R13
8 saved R12
0 (hole left from 3f38d80b dropping the superfluous saving of R11)
Now it looks like:
352 CFA
344 return address
336 saved RBP
328 saved RBX
320 saved R15
312 saved R14
304 saved R13
296 saved R12
⋮
0 (296 bytes of scratch space)
The bulk of the changes involve subtracting 56 from all the offsets to
RSP when working in the scratch space. This was done in Vim with:
'<,'>s/\([1-9][0-9]*\)(%rsp)/\=submatch(1)-56."(%rsp)"/
BUG=176
Change-Id: I022830e8f896fe2d877015fa3ecfa1d073207679
Reviewed-on: https://boringssl-review.googlesource.com/13580
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The Mac ld gets unhappy about "weird" unwind directives:
In chacha20_poly1305_x86_64.pl, $keyp is being pushed on the stack
(according to the comment) because it gets clobbered in the computation
somewhere. $keyp is %r9 which is not callee-saved (it's an argument
register), so we don't need to tag it with .cfi_offset.
In x25519-asm-x86_64.S, x25519_x86_64_mul saves %rdi on the stack.
However it too is not callee-saved (it's an argument register) and
should not have a .cfi_offset. %rdi also does not appear to be written
to anywhere in the function, so there's no need to save it at all.
(This does not resolve the "r15 is saved too far from return address"
errors. Just the non-standard register ones.)
BUG=176
Change-Id: I53f3f7db3d1745384fb47cb52cd6536aabb5065e
Reviewed-on: https://boringssl-review.googlesource.com/13560
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
In TLS 1.2, resumption's benefits are more-or-less subsumed by False
Start. TLS 1.2 resumption lifetime is bounded by how much traffic we are
willing to encrypt without fresh key material, so the lifetime is short.
Renewal uses the same key, so we do not allow it to increase lifetimes.
In TLS 1.3, resumption unlocks 0-RTT. We do not implement psk_ke, so
resumption incorporates fresh key material into both encrypted traffic
(except for early data) and renewed tickets. Thus we are both more
willing to and more interested in longer lifetimes for tickets. Renewal
is also not useless. Thus in TLS 1.3, lifetime is bound separately by
the lifetime of a given secret as a psk_dhe_ke authenticator and the
lifetime of the online signature which authenticated the initial
handshake.
This change maintains two lifetimes on an SSL_SESSION: timeout which is
the renewable lifetime of this ticket, and auth_timeout which is the
non-renewable cliff. It also separates the TLS 1.2 and TLS 1.3 timeouts.
The old session timeout defaults and configuration apply to TLS 1.3, and
we define new ones for TLS 1.3.
Finally, this makes us honor the NewSessionTicket timeout in TLS 1.3.
It's no longer a "hint" in 1.3 and there's probably value in avoiding
known-useless 0-RTT offers.
BUG=120
Change-Id: Iac46d56e5a6a377d8b88b8fa31f492d534cb1b85
Reviewed-on: https://boringssl-review.googlesource.com/13503
Reviewed-by: Adam Langley <agl@google.com>
This special-case is almost unexposed (the timeout is initialized to the
default) except if the caller calls SSL_CTX_set_timeout(0). Preserve
that behavior by mapping 0 to SSL_DEFAULT_SESSION_TIMEOUT in
SSL_CTX_set_timeout but simplify the internal state.
Change-Id: Ice03a519c25284b925f1e0cf485f2d8c54dc5038
Reviewed-on: https://boringssl-review.googlesource.com/13502
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
It is impossible to have to call dispatch_alert when writing application
data. Now that we don't send warning alerts through ssl3_send_alert, all
alerts are closure alerts, which means attempts to write will fail.
This prunes a lot of dead code, avoiding the re-entrancy in the write
path. With that gone, tracking alert_dispatch is much more
straightforward.
BUG=146
Change-Id: Ie5fe677daee71e463d79562f3d2cea822a92581d
Reviewed-on: https://boringssl-review.googlesource.com/13500
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This change moves the interface between |X509| and |CRYPTO_BUFFER| a
little further out, towards the API.
Change-Id: I1c014d20f12ad83427575843ca0b3bb22de1a694
Reviewed-on: https://boringssl-review.googlesource.com/13365
Reviewed-by: Adam Langley <agl@google.com>
The recent CRYPTO_BUFFER changes meant that |X509| objects passed to
SSL_CTX_add_extra_chain_cert would be |free|ed immediately. However,
some third-party code (at least serf and curl) continue to use the
|X509| even after handing over ownership.
In order to unblock things, keep the past |X509| around for a while to
paper over the issues with those libraries while we try and upstream
changes.
Change-Id: I832b458af9b265749fed964658c5c34c84d518df
Reviewed-on: https://boringssl-review.googlesource.com/13480
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This change serves to check that all our consumers can process assembly
with CFI directives in it.
For the first change I picked a file that's not perlasm to keep things
slightly simplier, but that might have been a mistake:
DJB's tooling always aligns the stack to 32 bytes and it's not possible
to express this in DWARF format (without using a register to store the
old stack pointer).
Since none of the functions here appear to care about that alignment, I
removed it from each of them. I also trimmed the set of saved registers
where possible and used the redzone for functions that didn't need much
stack.
Overall, this appears to have slightly improved the performance (by
about 0.7%):
Before:
Did 46000 Curve25519 base-point multiplication operations in 3023288us (15215.2 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3017315us (15245.3 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3015346us (15255.3 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3018609us (15238.8 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3019004us (15236.8 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3013135us (15266.5 ops/sec)
After:
Did 46000 Curve25519 base-point multiplication operations in 3007659us (15294.3 ops/sec)
Did 47000 Curve25519 arbitrary point multiplication operations in 3054202us (15388.6 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3008714us (15288.9 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3004740us (15309.1 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3009140us (15286.8 ops/sec)
Did 47000 Curve25519 arbitrary point multiplication operations in 3057518us (15371.9 ops/sec)
Change-Id: I31df11c45b2ea0bf44dde861d52c27f848331691
Reviewed-on: https://boringssl-review.googlesource.com/13200
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Move to explicit hashing everywhere, matching TLS 1.2 with TLS 1.3. The
ssl_get_message calls between all the handshake states are now all
uniform so, when we're ready, we can rewire the TLS 1.2 state machine to
look like the TLS 1.3 one. (ssl_get_message calls become an
ssl_hs_read_message transition, reuse_message becomes an ssl_hs_ok
transition.)
This avoids some nuisance in processing the ServerHello at the 1.2 / 1.3
transition.
The downside of explicit hashing is we may forget to hash something, but
this will fail to interop with our tests and anyone else, so we should
be able to catch it.
BUG=128
Change-Id: I01393943b14dfaa98eec2a78f62c3a41c29b3a0e
Reviewed-on: https://boringssl-review.googlesource.com/13266
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is kind of annoying (even new state is needed to keep the layering
right). As part of aligning the read paths of the TLS 1.2 and TLS 1.3
state machine, we'll want to move to states calling
ssl_hash_current_message when the process the message, rather than when
the message is read. Right now the TLS 1.2 optional message story
(reuse_message) depends on all messages preceded by an optional message
using ssl_hash_message. For instance, if TLS 1.2 decided to place
CertificateStatus before ServerKeyExchange, we would not be able to
handle it.
However, V2ClientHello, by being handled in the message layer, relies on
ssl_get_message-driven hashing to replace the usual ClientHello hash
with a hash of something custom. This switches things so rather than
ClientHellos being always pre-hashed by the message layer, simulated
ClientHellos no-op ssl_hash_current_message.
This just replaces one hack with another (V2ClientHello is inherently
nasty), but this hack should be more compatible with future plans.
BUG=128
Change-Id: If807ea749d91e306a37bb2362ecc69b84bf224c9
Reviewed-on: https://boringssl-review.googlesource.com/13265
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Perlasm requires the size suffix when targeting NASM and Yasm; without
it, the resulting .asm file has |imu| instead of |imul|.
Change-Id: Icb95b8c0b68cf4f93becdc1930dc217398f56bec
Reviewed-on: https://boringssl-review.googlesource.com/13381
Reviewed-by: Adam Langley <agl@google.com>
Use the same quoting used in other files so that this file can be built
the same way as other files on platforms that require the other kind of
quoting.
Change-Id: I808769bf014fbfe526fedcdc1e1f617b3490d03b
Reviewed-on: https://boringssl-review.googlesource.com/13380
Reviewed-by: Adam Langley <agl@google.com>
This aligns the TLS 1.2 state machine closer with the TLS 1.3 state
machine. This is more work for the handshake, but ultimately the
plan is to take the ssl_get_message call out of the handshake (so it is
just the state machine rather than calling into BIO), so the parameters
need to be folded out as in TLS 1.3.
The WrongMessageType-* family of tests should make sure we don't miss
one of these.
BUG=128
Change-Id: I17a1e6177c52a7540b2bc6b0b3f926ab386c4950
Reviewed-on: https://boringssl-review.googlesource.com/13264
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This was originally changed so that flush_flight could forward BIO_write
errors as-is, but we can and probably should still map BIO_flush errors.
This is unlikely to matter (every relevant BIO likely just has a no-op
flush which returns one), but, e.g., our file BIO returns 0, not -1, on
error.
We possibly should also be mapping BIO_write errors, but I'll leave that
alone for now. It's primarily BIO_read where the BIO return value must
be preserved due to error vs. EOF.
(We probably can just remove the BIO_flush calls altogether, but since
the buffer BIO forwarded the flush signal it would be a user-visible
behavior change to confirm.)
Change-Id: Ib495cc5d043867cf964f99b7ee4535114f7b2230
Reviewed-on: https://boringssl-review.googlesource.com/13367
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This change converts the |CERT| struct to holding certificates as binary
blobs, rather than in parsed form. The members for holding the parsed
form are still there, however, but are only used as a cache for the
event that someone asks us for a non-owning pointer to the parsed leaf
or chain.
Next steps:
* Move more functions in to ssl_x509.c
* Create an X509_OPS struct of function pointers that will hang off
the |SSL_METHOD| to abstract out the current calls to crypto/x509
operations.
BUG=chromium:671420
Change-Id: Ifa05d88c49a987fd561b349705c9c48f106ec868
Reviewed-on: https://boringssl-review.googlesource.com/13280
Reviewed-by: Adam Langley <agl@google.com>
Until we've gotten it fully working, we should not mint any of these
SSL_SESSIONs, to avoid constraining future versions of our client code.
Notably, if any of our TLS 1.3 clients today serialized sessions, we
would need to rev the serialization format. Without opting into 0-RTT, a
TLS 1.3 client will create SSL_SESSIONs tagged as 0-RTT-capable but
missing important fields (ALPN, etc.). When that serialized session
makes its way to a future version of our client code, it would disagree
with the server about the ALPN value stored in the ticket and cause
interop failures.
I believe the only client code enabling TLS 1.3 right now is Chrome, and
the window is small, so it should be fine. But fix this now before it
becomes a problem.
Change-Id: Ie2b109f8d158017a6f3b4cb6169050d38a66b31c
Reviewed-on: https://boringssl-review.googlesource.com/13342
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
The TLS 1.2 state machine now looks actually much closer to the TLS 1.3
one on the write side. Although the write states still have a BIO-style
return, they don't actually send anything anymore. Only the BIO flush
state does. Reads are still integrated into the states themselves
though, so I haven't made it match TLS 1.3 yet.
BUG=72
Change-Id: I7708162efca13cd335723efa5080718a5f2808ab
Reviewed-on: https://boringssl-review.googlesource.com/13228
Reviewed-by: Adam Langley <agl@google.com>
The SSL code suffers from needing too many verbs for variations on
writing things without actually writing them. We used to have queuing
the message up to be written to the buffer BIO, writing to the buffer
BIO, and flushing the buffer BIO. (Reading, conversely, has a similar
mess of verbs.)
Now we just have adding to the pending flight and flushing the pending
flight, match the SSL_PROTOCOL_METHOD naming.
BUG=72
Change-Id: I332966928bf13f03dfb8eddd519c2fefdd7f24d4
Reviewed-on: https://boringssl-review.googlesource.com/13227
Reviewed-by: Adam Langley <agl@google.com>
Large chunks of contiguous messages can now be sent in a row. Notably,
the ServerHello flight involves a number of optional messages which can
now be collapsed into straight-line code.
BUG=72
Change-Id: I1429d22a12401aa0f811a04e495bd5d754c084a4
Reviewed-on: https://boringssl-review.googlesource.com/13226
Reviewed-by: Adam Langley <agl@google.com>
On the TLS side, we introduce a running buffer of ciphertext. Queuing up
pending data consists of encrypting the record into the buffer. This
effectively reimplements what the buffer BIO was doing previously, but
this resizes to fit the whole flight.
As part of this, rename all the functions to add to the pending flight
to be more uniform. This CL proposes "add_foo" to add to the pending
flight and "flush_flight" to drain it.
We add an add_alert hook for alerts but, for now, only the SSL 3.0
warning alert (sent mid-handshake) uses this mechanism. Later work will
push this down to the rest of the write path so closure alerts use it
too, as in DTLS. The intended end state is that all the ssl_buffer.c and
wpend_ret logic will only be used for application data and eventually
optionally replaced by the in-place API, while all "incidental" data
will be handled internally.
For now, the two buffers are mutually exclusive. Moving closure alerts
to "incidentals" will change this, but flushing application data early
is tricky due to wpend_ret. (If we call ssl_write_buffer_flush,
do_ssl3_write doesn't realize it still has a wpend_ret to replay.) That
too is all left alone in this change.
To keep the diff down, write_message is retained for now and will be
removed from the state machines in a follow-up change.
BUG=72
Change-Id: Ibce882f5f7196880648f25d5005322ca4055c71d
Reviewed-on: https://boringssl-review.googlesource.com/13224
Reviewed-by: Adam Langley <agl@google.com>
Instead, "writing" a message merely adds it to the outgoing_messages
structure. The code to write the flight then loops over it all and now
shares code with retransmission. The verbs here are all a little odd,
but they'll be fixed in later commits.
In doing so, this fixes a slight miscalculation of the record-layer
overhead when retransmitting a flight that spans two epochs. (We'd use
the encrypted epoch's overhead for the unencrypted epoch.)
BUG=72
Change-Id: I8ac897c955cc74799f8b5ca6923906e97d6dad17
Reviewed-on: https://boringssl-review.googlesource.com/13223
Reviewed-by: Adam Langley <agl@google.com>
This was replaced by the more general CLIENT_RANDOM scheme that records
the master secret. Support was added in Wireshark 1.8.0, released in
June 2012. At this point, ECDHE is sufficiently widely deployed that
anyone that cares about this feature must have upgraded their Wireshark
by now.
Change-Id: I9b708f245ec8728c1999daf91aca663be7d25661
Reviewed-on: https://boringssl-review.googlesource.com/13263
Reviewed-by: David Benjamin <davidben@google.com>
This will let us avoid a scratch buffer when assembling DTLS handshake
packets in the write_message-less flow.
BUG=72
Change-Id: I15e78efe3a9e3933c307e599f0043427330f4a9e
Reviewed-on: https://boringssl-review.googlesource.com/13262
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is the first part to removing the buffer BIO. The eventual end
state is the SSL_PROTOCOL_METHOD is responsible for maintaining one
flight's worth of messages. In TLS, it will just be a buffer containing
the flight's ciphertext. In DTLS, it's the existing structure for
retransmit purposes. There will be hooks:
- add_message (synchronous)
- add_change_cipher_spec (synchronous)
- add_warning_alert (synchronous; needed until we lose SSLv3 client auth
and TLS 1.3 draft 18; draft 19 will switch end_of_early_data to a
handshake message)
- write_flight (BIO; flush_flight will be renamed to this)
This also preserves the exact return value of BIO_flush. Eventually all
the BIO_write calls will be hidden behind BIO_flush to, to be consistent
with other BIO-based calls, preserve the return value.
BUG=72
Change-Id: I74cd23759a17356aab3bb475a8ea42bd2cd115c9
Reviewed-on: https://boringssl-review.googlesource.com/13222
Reviewed-by: Adam Langley <agl@google.com>
The Windows assembler doesn't appear to do preprocessor macros but nor
can it cope with this style of label.
Change-Id: I0b8ca7372bb9ea0f20101ed138681d379944658e
Reviewed-on: https://boringssl-review.googlesource.com/13207
Reviewed-by: David Benjamin <davidben@google.com>
Bazel doesn't allow one to give different flags for C and C++ files, so
trying to set -std=c11 for all ssl/ sources (which now include C++)
blows up.
This change splits the lists for Bazel so that they can be put in
different cc_library targets and thus have different flags.
Change-Id: I1e3dee01b6558de59246bc470527d44c9c86b188
Reviewed-on: https://boringssl-review.googlesource.com/13206
Reviewed-by: Adam Langley <agl@google.com>
This is basically the same implementation I wrote for Go
The Go implementation:
https://github.com/golang/crypto/blob/master/chacha20poly1305/chacha20poly1305_amd64.s
The Cloudflare patch for OpenSSL:
https://github.com/cloudflare/sslconfig/blob/master/patches/openssl__chacha20_poly1305_draft_and_rfc_ossl102j.patch
The Seal/Open is only available for the new version, the old one uses
the bundled Poly1305, and the existing ChaCha20 implementations
The benefits of this code, compared to the optimized code currently
disabled in BoringSSL:
* Passes test vectors
* Faster performance: The AVX2 code (on Haswell), is 55% faster for 16B,
15% for 1350 and 6% for 8192 byte buffers
* Even faster on pre-AVX2 CPUs
Feel free to put whatever license, etc. is appropriate, under the
existing CLA.
Benchmarks are for 16/1350/8192 chunk sizes and given in MB/s:
Before (Ivy Bridge): 34.2 589.5 739.4
After: 68.4 692.1 799.4
Before (Skylake): 50 1233 1649
After: 119.4 1736 2196
After (Andy's): 63.6 1608 2261
Change-Id: I9186f721812655011fc17698b67ddbe8a1c7203b
Reviewed-on: https://boringssl-review.googlesource.com/13142
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
For now, this is the laziest conversion possible. The intent is to just
get the build setup ready so that we can get everything working in our
consumers. The intended end state is:
- The standalone build produces three test targets, one per library:
{crypto,ssl,decrepit}_tests.
- Each FOO_test is made up of:
FOO/**/*_test.cc
crypto/test/gtest_main.cc
test_support
- generate_build_files.py emits variables crypto_test_sources and
ssl_test_sources. These variables are populated with FindCFiles,
looking for *_test.cc.
- The consuming file assembles those variables into the two test targets
(plus decrepit) from there. This avoids having generate_build_files.py
emit actual build rules.
- Our standalone builders, Chromium, and Android just run the top-level
test targets using whatever GTest-based reporting story they have.
In transition, we start by converting one of two tests in each library
to populate the three test targets. Those are added to all_tests.json
and all_tests.go hacked to handle them transparently. This keeps our
standalone builder working.
generate_build_files.py, to start with, populates the new source lists
manually and subtracts them out of the old machinery. We emit both for
the time being. When this change rolls in, we'll write all the build
glue needed to build the GTest-based tests and add it to consumers'
continuous builders.
Next, we'll subsume a file-based test and get the consumers working with
that. (I.e. make sure the GTest targets can depend on a data file.)
Once that's all done, we'll be sure all this will work. At that point,
we start subsuming the remaining tests into the GTest targets and,
asynchronously, rewriting tests to use GTest properly rather than
cursory conversion here.
When all non-GTest tests are gone, the old generate_build_files.py hooks
will be removed, consumers updated to not depend on them, and standalone
builders converted to not rely on all_tests.go, which can then be
removed. (Unless bits end up being needed as a malloc test driver. I'm
thinking we'll want to do something with --gtest_filter.)
As part of this CL, I've bumped the CMake requirements (for
target_include_directories) and added a few suppressions for warnings
that GTest doesn't pass.
BUG=129
Change-Id: I881b26b07a8739cc0b52dbb51a30956908e1b71a
Reviewed-on: https://boringssl-review.googlesource.com/13232
Reviewed-by: Adam Langley <agl@google.com>
Snapshotted from 5e7fd50e17b6edf1cadff973d0ec68966cf3265e in the
upstream repository:
https://github.com/google/googletest
Since standalone builds and bots will need this, checking in a copy
rather than require everyone use gclient, repo, git submodules or scary
CMake scripts is probably simplest.
Consumers with their own copies of googletest will likely wish to ignore
or even exclude this directory.
BUG=129
Change-Id: If9f4cec5ae0d7a3976dcfffd1ead6950ef7b7c4e
Reviewed-on: https://boringssl-review.googlesource.com/13229
Reviewed-by: David Benjamin <davidben@google.com>
It's not completely clear to me why select_cetificate_cb behaves the way it
does, however not only is it confusing, but it makes assumptions about the
application using BoringSSL (it's not always possible to implement custom
logic outside of the callbacks provided by libssl), that make this callback
somewhat useless.
Case in point, the callback can be used for changing min/max protocol versions
based on per-site policies, and select_certificate_cb is the only place where
SSL_set_min/max_proto_version() can be used (e.g. you can't call them in
cert_cb because it's too late), but the decision on the specific versions to
use might depend on configuration that needs retrieving asynchronously from
over the network, which requires re-running the callback multiple times.
Change-Id: Ia8e151b163628545373e7fd1f327e9af207478a6
Reviewed-on: https://boringssl-review.googlesource.com/13000
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Several of our AEADs support truncated tags, but I don't believe that we
had a test for them previously.
Change-Id: I63fdd194c47c17b3d816b912a568534c393df9d8
Reviewed-on: https://boringssl-review.googlesource.com/13204
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Before RFC 7539 we had a ChaCha20-Poly1305 cipher suite that had a 64/64
nonce/counter split (as DJB's original ChaCha20 did). RFC 7539 changed
that to 96/32 and we've supported both for some time.
This change removes the old version and the TLS cipher suites that used
it.
BUG=chromium:682816
Change-Id: I2345d6db83441691fe0c1ab6d7c6da4d24777849
Reviewed-on: https://boringssl-review.googlesource.com/13203
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.3 forbids warning alerts, and sending these is a bad idea. Per RFC
6066:
If the server understood the ClientHello extension but
does not recognize the server name, the server SHOULD take one of two
actions: either abort the handshake by sending a fatal-level
unrecognized_name(112) alert or continue the handshake. It is NOT
RECOMMENDED to send a warning-level unrecognized_name(112) alert,
because the client's behavior in response to warning-level alerts is
unpredictable.
The motivation is to cut down on the number of places where we send
non-closing alerts. We can't remove them yet (SSL 3.0 and TLS 1.3 draft
18 need to go), but eventually this can be a simplifying assumption.
Already this means DTLS never sends warning alerts, which is good
because DTLS can't retransmit them.
Change-Id: I577a1eb9c23e66d28235c0fbe913f00965e19486
Reviewed-on: https://boringssl-review.googlesource.com/13221
Reviewed-by: Adam Langley <agl@google.com>
This doesn't do anything useful. Every caller either never sets the
callback as a client or goes out of their way to filter out clients in
the callback.
Change-Id: I6f07d000a727f9ccba080f812e6b8e7a38e04350
Reviewed-on: https://boringssl-review.googlesource.com/13220
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Before RFC 7539 we had a ChaCha20-Poly1305 cipher suite that had a 64/64
nonce/counter split (as DJB's original ChaCha20 did). RFC 7539 changed
that to 96/32 and we've supported both for some time.
This change removes the old version and the TLS cipher suites that used
it.
Change-Id: Icd9c2117c657f3aa6df55990c618d562194ef0e8
Reviewed-on: https://boringssl-review.googlesource.com/13201
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
This is to make sure all of libssl's consumers' have sufficiently
reasonable toolchains. Once this bakes, we can go about moving
libssl to C++.
This is just starting with libssl for now because libcrypto has more
consumers and libssl would benefit more from C++ than libcrypto (though
libcrypto also has code that would benefit).
BUG=132
Change-Id: Ie02f7b0a8a95defd289cc7e62451d4b16408ca2a
Reviewed-on: https://boringssl-review.googlesource.com/13161
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Measured on a SkyLake processor:
Before:
Did 11373750 AES-128-GCM (16 bytes) seal operations in 1016000us (11194635.8 ops/sec): 179.1 MB/s
Did 2253000 AES-128-GCM (1350 bytes) seal operations in 1016000us (2217519.7 ops/sec): 2993.7 MB/s
Did 453750 AES-128-GCM (8192 bytes) seal operations in 1015000us (447044.3 ops/sec): 3662.2 MB/s
Did 10753500 AES-256-GCM (16 bytes) seal operations in 1016000us (10584153.5 ops/sec): 169.3 MB/s
Did 1898750 AES-256-GCM (1350 bytes) seal operations in 1015000us (1870689.7 ops/sec): 2525.4 MB/s
Did 374000 AES-256-GCM (8192 bytes) seal operations in 1016000us (368110.2 ops/sec): 3015.6 MB/s
After:
Did 11074000 AES-128-GCM (16 bytes) seal operations in 1015000us (10910344.8 ops/sec): 174.6 MB/s
Did 3178250 AES-128-GCM (1350 bytes) seal operations in 1016000us (3128198.8 ops/sec): 4223.1 MB/s
Did 734500 AES-128-GCM (8192 bytes) seal operations in 1016000us (722933.1 ops/sec): 5922.3 MB/s
Did 10394750 AES-256-GCM (16 bytes) seal operations in 1015000us (10241133.0 ops/sec): 163.9 MB/s
Did 2502250 AES-256-GCM (1350 bytes) seal operations in 1016000us (2462844.5 ops/sec): 3324.8 MB/s
Did 544500 AES-256-GCM (8192 bytes) seal operations in 1015000us (536453.2 ops/sec): 4394.6 MB/s
Change-Id: If058935796441ed4e577b9a72d3aa43422edba58
Reviewed-on: https://boringssl-review.googlesource.com/7273
Reviewed-by: Adam Langley <alangley@gmail.com>
This was removed in a00cafc50c because
none of the assembly actually appeared to need it. However, we found the
assembly the uses it: the MOVBE-based, x86-64 code.
Needing H seems silly since Htable is there, but rather than mess with
the assembly, it's easier to put H back in the structure—now with a
better comment.
Change-Id: Ie038cc4482387264d5e0821664fb41f575826d6f
Reviewed-on: https://boringssl-review.googlesource.com/13122
Reviewed-by: Adam Langley <alangley@gmail.com>
This function is only called twice per ECDH or ECDSA operation, and
it only saves a few scalar multiplications and additions compared to
the alternative, so it doesn't need to be specialized.
As the TODO comment above the callers notes, the two calls can be
reduced to one. Implementing |ecp_nistz256_from_mont| in terms of
|ecp_nistz256_mul_mont| helps show that that change is safe.
This also saves a small amount of code size and improves testing and
verification efficiency.
Note that this is already how the function is implemented for targets
other than x86-64 in OpenSSL.
Change-Id: If1404951f1a787d2618c853afd1f0e99a019e012
Reviewed-on: https://boringssl-review.googlesource.com/13021
Reviewed-by: Adam Langley <alangley@gmail.com>
There is no AVX implementation for x86. Previously on x86 the code
checked to see if AVX and MOVBE are available, and if so, then it
uses the CLMUL implementation. Otherwise it fell back to the same
CLMUL implementation. Thus, there is no reason to check if AVX + MOVBE
are enabled on x86.
Change-Id: Id4983d5d38d6b3269a40e288bca6cc51d2d13966
Reviewed-on: https://boringssl-review.googlesource.com/13024
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <alangley@gmail.com>
BoringSSL can assume that MMX, SSE, and SSE2 is always supported so
there is no need for a runtime check and there's no need for this
fallback code. Removing the code improves coverage analysis and shrinks
code size.
Change-Id: I782a1bae228f700895ada0bc56687e53cd02b5df
Reviewed-on: https://boringssl-review.googlesource.com/13022
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
This re-applies 3f3358ac15 which was
reverted in c7fe3b9ac5 because the field
operations did not fully-reduce operands. This was fixed in
2f1482706fadf51610a529be216fde0721709e66.
Change-Id: I3913af4b282238dbc21044454324123f961a58af
Reviewed-on: https://boringssl-review.googlesource.com/12227
Reviewed-by: Adam Langley <agl@google.com>
Mercifully, PKCS#12 does not actually make ContentInfo and SafeBag
mutually recursive. The top-level object in a PKCS#12 is a SEQUENCE of
data or encrypted data ContentInfos. Their payloads are a SEQUENCE of
SafeBags (aka SafeContents).
SafeBag is a similar structure to ContentInfo but not identical (it has
attributes in it which we ignore) and actually carries the objects.
There is only recursion if the SafeContents bag type is used, which we
do not process.
This means we don't need to manage recursion depth. This also no longer
allows trailing data after the SEQUENCE and removes the comment about
NSS. The test file still passes, so I'm guessing something else was
going on?
Change-Id: I68e2f8a5cc4b339597429d15dc3588bd39267e0a
Reviewed-on: https://boringssl-review.googlesource.com/13071
Reviewed-by: Adam Langley <agl@google.com>
Resolving the TODO here will be messier than the other implementations
but, to start with, remove this 'pivot element' thing. All that is just
to free some array contents without having to memset the whole thing to
zero.
Change-Id: Ifd6ee0b3815006d4f1f19c9db085cb842671c6dc
Reviewed-on: https://boringssl-review.googlesource.com/13057
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
BN_FLG_CONSTTIME is a ridiculous API and easy to mess up
(CVE-2016-2178). Instead, code that needs a particular algorithm which
preserves secrecy of some arguemnt should call into that algorithm
directly.
This is never set outside the library and is finally unused within the
library! Credit for all this goes almost entirely to Brian Smith. I just
took care of the last bits.
Note there was one BN_FLG_CONSTTIME check that was still reachable, the
BN_mod_inverse in RSA key generation. However, it used the same code in
both cases for even moduli and φ(n) is even if n is not a power of two.
Traditionally, RSA keys are not powers of two, even though it would make
the modular reductions a lot easier.
When reviewing, check that I didn't remove a BN_FLG_CONSTTIME that led
to a BN_mod_exp(_mont) or BN_mod_inverse call (with the exception of the
RSA one mentioned above). They should all go to functions for the
algorithms themselves like BN_mod_exp_mont_consttime.
This CL shows the checks are a no-op for all our tests:
https://boringssl-review.googlesource.com/c/12927/
BUG=125
Change-Id: I19cbb375cc75aac202bd76b51ca098841d84f337
Reviewed-on: https://boringssl-review.googlesource.com/12926
Reviewed-by: Adam Langley <alangley@gmail.com>
Avoid the X509_ALGOR dependency entirely. The public API is still using
the legacy ASN.1 structures for now, but the conversions are lifted to
the API boundary. Once we resolve that and the OID table dependency,
this module will no longer block unshipping crypto/asn1 and friends from
Chromium.
This changes the calling convention around the two kinds of PBE suites
we support. Each PBE suite provides a free-form encrypt_init function to
setup an EVP_CIPHER_CTX and write the AlgorithmIdentifer to a CBB. It
then provides a common decrypt_init function which sets up an
EVP_CIPHER_CTX given a CBS of the parameter. The common encrypt code
determines how to call which encrypt_init function. The common decrypt
code parses the OID out of the AlgorithmIdentifer and then dispatches to
decrypt_init.
Note this means the encryption codepath no longer involves parsing back
out a AlgorithmIdentifier it just serialized. We don't have a good story
to access an already serialized piece of a CBB in progress (reallocs can
invalidate the pointer in a CBS), so it's easier to cut this step out
entirely.
Also note this renames the "PBES1" schemes from PKCS#5 to PKCS#12. This
makes it easier to get at the PKCS#12 key derivation hooks. Although
PKCS#12 claims these are variants of PKCS#5's PBES1, they're not very
related. PKCS#12 swaps out the key derivation and even defines its own
AlgorithmIdentifier parameter structure (identical to the PKCS#5 PBES1
one). The only thing of PBES1 that survives is the CBC mode padding
scheme, which is deep in EVP_CIPHER for us. (Of course, all this musing
on layering is moot because we don't implement non-PKCS#12 PBES1 schemes
anyway.)
This also moves some of the random API features (default iteration
count, default salt generation) out of the PBE suites and into the
common code.
BUG=54
Change-Id: Ie96924c73a229be2915be98eab680cadd17326db
Reviewed-on: https://boringssl-review.googlesource.com/13069
Reviewed-by: Adam Langley <alangley@gmail.com>
libcrypto can now be split in two, with everything that depends on
crypto/asn1 in a separate library. That said, Chromium still needs
crypto/pkcs8 to be implemented with CBS/CBB first. (Also libssl and
anything which uses X509* directly.)
BUG=54
Change-Id: Iec976ae637209882408457e94a1eb2465bce8d56
Reviewed-on: https://boringssl-review.googlesource.com/13059
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
They're not called externally. Unexporting these will make it easier to
rewrite the PKCS{5,8,12} code to use CBS/CBB rather than X509_ALGOR.
Getting rid of those callers in Chromium probably won't happen for a
while since it's in our on-disk formats. (And a unit test for some NSS
client cert glue uses it.)
BUG=54
Change-Id: Id4148a2ad567484782a6e0322b68dde0619159fc
Reviewed-on: https://boringssl-review.googlesource.com/13062
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <alangley@gmail.com>
The motiviation is that M2Crypto passes an ASN1_GENERALIZEDTIME to
this function. This is not distinct from ASN1_UTCTIME (both are
asn1_string_st), but ASN1_GENERALIZEDTIME uses a 4-digit year in its
string representation, whereas ASN1_UTCTIME uses a 2-digit year.
ASN1_UTCTIME_print previously did not return an error on such inputs.
So, stricten (?) the function, ensuring that it checks for trailing
data, and rejects values that are invalid for their place. Along the
way, clean it up and add tests.
Change-Id: Ia8298bed573f2acfdab96638ea69c78b5bba4e4b
Reviewed-on: https://boringssl-review.googlesource.com/13082
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
08b65f4e31 introduced a memory leak and
also got enums confused. Also fix a codepath that was missing an error
code.
Thanks to OSS-Fuzz which appears to have found it in a matter of hours.
Change-Id: Ia9e926c28a01daab3e6154d363d0acda91209a22
Reviewed-on: https://boringssl-review.googlesource.com/13104
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Towards an eventual goal of opaquifying BoringSSL structs, we want
our consumers -- in this case, Android's libcore -- to not directly
manipulate BigNums; and it would be convenient for them if we would
perform the appropriate gymnastics to interpret little-endian byte
streams.
It also seems a priori a bit strange to have only big-endian varieties
of BN byte-conversions.
This CL provides little-endian equivalents of BN_bn2bin_padded
and BN_bin2bn.
BUG=97
Change-Id: I0e92483286def86d9bd71a46d6a967a3be50f80b
Reviewed-on: https://boringssl-review.googlesource.com/12641
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is a remnant of signature EVP_MDs. Detach them from
EVP_get_digestby{nid,obj}. Nothing appears to rely on this for those two
functions. Alas, Node.js appears to rely on it for EVP_get_digestbyname,
so keep that working.
This avoids causing every consumer's parsing to be unintentionally lax.
It also means fewer OIDs to transcribe when detaching the last of
libcrypto from the legacy ASN.1 stack and its giant OID table.
Note this is an externally visible change. There was one consumer I had
to fix, but otherwise everything handled things incorrectly due to this
quirk, so it seemed better to just fix the API rather than fork off a
second set.
Change-Id: I705e073bc05d946e71cd1c38acfa5e3c6b0a22b4
Reviewed-on: https://boringssl-review.googlesource.com/13058
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Instead, use BN_mod_exp_mont_consttime of p - 2. This removes two more
call sites sensitive to BN_FLG_CONSTTIME. We're down to just that last
BN_mod_inverse modulo φ(n). (Sort of. It's actually not sensitive
because even mod inverses always hit the other codepath. Perhaps we
should just leave it alone.)
Note this comes with a slight behavior change. The BN_MONT_CTXs are
initialized a little earlier. If a caller calls RSA_generate_* and then
reaches into the struct to scrap all the fields on it, they'll get
confused. Before, they had to perform an operation on it to get
confused. This is a completely ridiculous thing to do.
Since we do this a lot, this introduces some convenience functions for
doing the Fermat's Little Theorem mod inverse and fixes a leak in the
DSA code should computing kinv hit a malloc error.
BUG=125
Change-Id: Iafcae2fc6fd379d161f015c90ff7050e2282e905
Reviewed-on: https://boringssl-review.googlesource.com/12925
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Instead, add ssl_has_certificate to the ssl3_send_cert_verify check. If
writing the empty Certificate does not complete synchronously (it almost
always does due to the buffer BIO), but if the buffer boundary is at
exactly the wrong place, write_message will need a retry but, having
cleared cert_request, we never re-enter ssl3_send_client_certificate.
This will later be moot when we've gotten rid of the buffer BIO, but
this is cleaner anyway and is closer to the TLS 1.3 code.
With this change, blindly taking away the BIO buffer in TLS (which is
not what we want since we want the entire flight in one write but is a
nice sanity check), only the SSL 3.0 no client certificate tests fail.
They too rely on some writes completing synchronously due to SSL 3.0
sending a warning alert. There is a similar bug when
tlsext_servername_callback returns SSL_TLSEXT_ERR_ALERT_WARNING.
Those will be resolved after reworking the write path since it's a bit
of a mess.
Change-Id: I56b4df6163cae1df263cf36f0d93046d0375a5ac
Reviewed-on: https://boringssl-review.googlesource.com/13052
Reviewed-by: David Benjamin <davidben@google.com>
The write path for TLS is going to need some work. There are some fiddly
cases when there is a write in progress. Start adding tests to cover
this logic.
Later I'm hoping we can extend this flag so it drains the unfinished
write and thus test the interaction of read/write paths in 0-RTT. (We
may discover 1-RTT keys while we're in the middle of writing data.)
Change-Id: Iac2c417e4b5e84794fb699dd7cbba26a883b64ef
Reviewed-on: https://boringssl-review.googlesource.com/13049
Reviewed-by: Adam Langley <agl@google.com>
Channel ID is already enabled on the SSL. This dates to
49c7af1c42 which converted an instance of
tlsext_channel_id_enabled_new to it, but tlsext_channel_id_enabled_new
meant "if Channel ID is enabled, use the new one", not "enable Channel
ID".
Thanks to Eric Rescorla for catching this.
Change-Id: I2d5a82b930ffcbe5527a62a9aa5605ebb71a6b9f
Reviewed-on: https://boringssl-review.googlesource.com/13042
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This was noticed by observing we had one line of missing test coverage
in polyval.c. CRYPTO_POLYVAL_update_blocks acts 32 blocks at a time and
all existing test vectors are smaller than that.
Test vector obtained by just picking random values and seeing what our
existing implementation did if I modified CRYPTO_POLYVAL_update_blocks
to consume many more blocks at a time. Then I fixed the bug and ensured
the answer was still the same.
Change-Id: Ib7002dbc10952229ff42a17132c30d0e290d4be5
Reviewed-on: https://boringssl-review.googlesource.com/13041
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is a memory error for anything other than LHASH_OF(char), which
does not exist.
No code outside the library creates (or even queries) an LHASH, so we
can change this module freely.
Change-Id: Ifbc7a1c69a859e07650fcfaa067bdfc68d83fbbc
Reviewed-on: https://boringssl-review.googlesource.com/12978
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Use it to compare the contents of lh and dummy_lh are identical. Leave a
TODO for testing other LHASH cases.
Change-Id: Ifbaf17c196070fdff1530ba0e284030527855f5d
Reviewed-on: https://boringssl-review.googlesource.com/12977
Reviewed-by: Adam Langley <agl@google.com>
Use a std::map as the dummy lhash and use unique_ptr. This also improves
the test to check on pointer equality; we wish to ensure the lhash
stores the particular pointer value we asked for.
dummy_lh now also owns the pointers. It makes things simpler and since
LHASH doesn't free things, we weren't getting anything out of testing
that.
Change-Id: I97159175ca79a5874586650f272a7846100395e1
Reviewed-on: https://boringssl-review.googlesource.com/12976
Reviewed-by: Adam Langley <agl@google.com>
Rather than doing it right before outputing, treat this as a part of the
pipeline to finalize the certificate chain, and run it right after
cert_cb to modify the certificate configuration itself. This means
nothing else in the stack needs to worry about this case existing.
It also makes it easy to support in both TLS 1.2 and TLS 1.3.
Change-Id: I6a088297a54449f1f5f5bb8b5385caa4e8665eb6
Reviewed-on: https://boringssl-review.googlesource.com/12966
Reviewed-by: Adam Langley <agl@google.com>
Alas, wpa_supplicant relies on the auto-chaining feature, so we can't
easily remove it. Write tests for it to ensure it stays working.
These test currently do not work for TLS 1.3 because the feature is
broken in 1.3. A follow-up change will fix this.
BUG=70
Change-Id: I2c04f55b712d66f5af1556254a5b017ebc3244f7
Reviewed-on: https://boringssl-review.googlesource.com/12965
Reviewed-by: Adam Langley <agl@google.com>
Chaining doesn't make much sense. This means we have a discontinuity
when buffer BIOs are empty. For a general filter BIO, this isn't even
meaningful. E.g., the base64 BIO's next_bio doesn't use the same units
(There's one consumer which does call BIO_pending on a base64 BIO, hits
this case, and is only working on accident, I've left it alone for this
CL until we can fix that consumer.)
The DTLS code, notably, assumes BIO_wpending to only report what's in
the buffer BIO. Ideally we'd get rid of the buffer BIO (I'll work on
this next), but, in the meantime, get the sizing right. The immediate
motivation is ssl_test using a BIO pair for DTLS doesn't work. We've
just been lucky none of the tests have been near the MTU.
The buffer BIO is actually unused outside of the SSL stack, so this
shouldn't break external consumers. But for the base64 BIO consumer
mentioned above, I see nothing else which relies on this BIO_[w]pending
chaining.
Change-Id: I6764df8ede0f89fe73c774a8f7c9ae4c054d4184
Reviewed-on: https://boringssl-review.googlesource.com/12964
Reviewed-by: Adam Langley <agl@google.com>
I thought I'd rewritten this, but apparently didn't. The old version
dated to a prior iteration which used macros.
Change-Id: Idefbdb2c11700a44dd5b0733b98efec102b10dd2
Reviewed-on: https://boringssl-review.googlesource.com/12968
Reviewed-by: Adam Langley <agl@google.com>
Most C standard library functions are undefined if passed NULL, even
when the corresponding length is zero. This gives them (and, in turn,
all functions which call them) surprising behavior on empty arrays.
Some compilers will miscompile code due to this rule. See also
https://www.imperialviolet.org/2016/06/26/nonnull.html
Add OPENSSL_memcpy, etc., wrappers which avoid this problem.
BUG=23
Change-Id: I95f42b23e92945af0e681264fffaf578e7f8465e
Reviewed-on: https://boringssl-review.googlesource.com/12928
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This avoids having more generated bits. The table is quite small,
especially so when we take out anything we don't implement. There's no
real need to do the binary search. (Exotic things like GOST, the legacy
NID_rsa and NID_dsa_2 spellings of RSA and DSA, and hash functions we
don't implement.)
Mostly this saves me from having to reimplement obj_xref.pl.
(obj_xref.pl processes nid.h, formerly obj_mac.h, so we can't just use
the existing one and still change nid.h.)
Change-Id: I90911277e691a8b04ea8930f3f314d517f314d29
Reviewed-on: https://boringssl-review.googlesource.com/12962
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Chromium on Linux builds against libstdc++'s debug mode which makes
clang unhappy due to:
../crypto/bytestring/bytestring_test.cc:910:7: error: chosen constructor
is explicit in copy-initialization
{},
^~
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/debug/vector:79:7:
note: constructor declared here
vector(const _Allocator& __a = _Allocator())
^
I believe this was fixed here, but it's too recent:
https://github.com/gcc-mirror/gcc/commit/36f540c70ba27e441bd07111a2107b8993382905
Change-Id: I2942d153e1278785c3b81294bc99b86f297cf719
Reviewed-on: https://boringssl-review.googlesource.com/12967
Reviewed-by: Adam Langley <agl@google.com>
X509_STORE_set0_additional_untrusted allows one to set a stack of
additional untrusted certificates that can be used during chain
building. These will be merged with the untrusted certificates set on
the |X509_STORE_CTX|.
Change-Id: I3f011fb0854e16a883a798356af0a24cbc5a9d68
Reviewed-on: https://boringssl-review.googlesource.com/12980
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Simplify the code, and in particular make |BN_div|, |BN_mod|, and
|BN_nnmod| insensitive to |BN_FLG_CONSTTIME|. This improves the
effectiveness of testing by reducing the number of branches that are
likely to go untested or less tested.
There is no performance-sensitive code that uses BN_div but doesn't
already use BN_FLG_CONSTTIME except RSA signature verification and
EC_GROUP creation. RSA signature verification, ECDH, and ECDSA
performance aren't significantly different with this change.
Change-Id: Ie34c4ce925b939150529400cc60e1f414c7676cd
Reviewed-on: https://boringssl-review.googlesource.com/9105
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This is in preparation for implementing 0-RTT where, like
with client_traffic_secret_0, client_handshake_secret must
be derived slightly earlier than it is used. (The secret is
derived at ServerHello, but used at server Finished.)
Change-Id: I6a186b84829800704a62fda412992ac730422110
Reviewed-on: https://boringssl-review.googlesource.com/12920
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
There are no longer any consumers of these APIs.
These were useful back when the CBC vs. RC4 tradeoff varied by version
and it was worth carefully tuning this cutoff. Nowadays RC4 is
completely gone and there's no use in configuring these anymore.
To avoid invalidating the existing ssl_ctx_api corpus and requiring it
regenerated, I've left the entries in there. It's probably reasonable
for new API fuzzers to reuse those slots.
Change-Id: I02bf950e3828062341e4e45c8871a44597ae93d5
Reviewed-on: https://boringssl-review.googlesource.com/12880
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
MSAN doesn't hook |syscall| and thus doesn't know that the kernel has
filled the output buffer when |getrandom| is called.
This change tells MSAN to trust that the memory that |getrandom| writes
to has been initialised. This should avoid false-positives when code
operates on |RAND_bytes| output.
Change-Id: I0a74ebb21bcd1de1f28eda69558ee27f82db807a
Reviewed-on: https://boringssl-review.googlesource.com/12903
Reviewed-by: Adam Langley <alangley@gmail.com>
Commit-Queue: Adam Langley <alangley@gmail.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Get one step closer to removing the dependency on |BN_div| from most
programs. Also get one step closer to a constant-time implementation of
|BN_MONT_CTX_set|; we now "just" need to create a constant-time variant
of |BN_mod_lshift1_quick|.
Note that this version might actually increase the side channel signal,
since the variance in timing in |BN_div| is probably less than the variance
from the many conditional reductions in the new method.
On one Windows x64 machine, the speed of RSA verification using the new
version is not too different from the speed of the old code. However,
|BN_div| is generally slow on Windows x64 so I expect this isn't faster
on all platforms. Regardless, we generally consider ECDSA/EdDSA
signature verification performance to be adaquate and RSA signature
verification is much, much faster even with this change.
For RSA signing the performance is not a significant factor since
performance-sensitive applications will cache the |RSA| structure and
the |RSA| structure will cache the Montgomery contexts.
Change-Id: Ib14f1a35c99b8da435e190342657f6a839381a1a
Reviewed-on: https://boringssl-review.googlesource.com/10520
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Call |RSA_check_key| after parsing an RSA private key in order to
verify that the key is consistent. This is consistent with ECC key
parsing, which does a similar key check.
Call |RSA_check_key| after key generation mostly as a way of
double-checking the key generation was done correctly. A similar check
was not added to |EC_KEY_generate| because |EC_KEY_generate| is used
for generating ephemeral ECDH keys, and the check would be too
expensive for that use.
Change-Id: I5759d0d101c00711bbc30f81a3759f8bff01427c
Reviewed-on: https://boringssl-review.googlesource.com/7522
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
-2 is really weird. On sign, it's maximal length. On verify, it actually
accepts all lengths. This sounds somewhat questionable to me, but just
document the state of the world for now. Also add a recommendation to
use -1 (match digest length) to align with TLS 1.3, tokbind, and QUIC
Crypto. Hopefully the first two is sufficient that the IETF will forever
use this option and stop the proliferation of RSA-PSS parameters.
Change-Id: Ie0ad7ad451089df0e18d6413d1b21c5aaad9d0f2
Reviewed-on: https://boringssl-review.googlesource.com/12823
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is imported from upstream's
71bbc79b7d3b1195a7a7dd5f547d52ddce32d6f0 and test vectors taken
initially from 2d7bbd6c9fb6865e0df480602c3612652189e182 (with a handful
more added).
The tests are a little odd because OpenSSL supports this "salt length
recovery" mode and they go through that codepath for all verifications.
Change-Id: I220104fe87e2a1a1458c99656f9791d8abfbbb98
Reviewed-on: https://boringssl-review.googlesource.com/12822
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This change includes C versions of some of the functions from the x86-64
P-256 code that are currently implemented in assembly. These functions
were part of the original submission by Intel and are covered by the ISC
license.
No semantic change; code is commented out.
Change-Id: Ifdd2fac6caeb73d375d6b125fac98f3945003b32
Reviewed-on: https://boringssl-review.googlesource.com/12861
Reviewed-by: Adam Langley <agl@google.com>
These are regression tests for
https://boringssl-review.googlesource.com/c/12525/ that target the
RSAZ-512 code rather than the disabled RSAZ-1024 code.
These were created by extracting p and dmp1 from
ssl/test/rsa_1024_key.pem and creating similar test vectors as with the
AVX2 test vectors. They currently fail, but pass if the RSAZ-512 code is
disabled.
Change-Id: I99dd3f385941ddbb1cc64b5351f4411081b42dd7
Reviewed-on: https://boringssl-review.googlesource.com/12840
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The input base, |a|, isn't reduced mod |m| in the RSAZ case so
incorrect results are given for out-of-range |a| when the RSAZ
implementation is used. On the other hand, the RSAZ implementation is
more correct as far as constant-time operation w.r.t. |a| is concerned.
Change-Id: Iec4d0195cc303ce442ce687a4b7ea42fb19cfd06
Reviewed-on: https://boringssl-review.googlesource.com/12524
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This function always returns the full chain and will hopefully eliminate
the need for some code in Conscrypt.
Change-Id: Ib662005322c40824edf09d100a784ff00492896a
Reviewed-on: https://boringssl-review.googlesource.com/12780
Reviewed-by: Adam Langley <agl@google.com>
$1<<32>>32 worked fine with either 32- or 64-bit perl for a good while,
relying on quirk that [pure] 32-bit perl performed it as $1<<0>>0. But
this apparently changed in some version past minimally required 5.10,
and operation result became 0. Yet, it went unnoticed for another while,
because most perl package providers configure their packages with
-Duse64bitint option.
(Imported from upstream's 82e089308bd9a7794a45f0fa3973d7659420fbd8.)
Change-Id: Ie9708bb521c8d7d01afd2e064576f46be2a811a5
Reviewed-on: https://boringssl-review.googlesource.com/12821
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
OpenSSL includes a leaf certificate in a certificate chain when it's a
client, but doesn't when it's a server. This is also reflected in the
serialisation of sessions.
This change makes the internal semantics consistent: the leaf is always
included in the chain in memory, and never duplicated when serialised.
To maintain the same API, SSL_get_peer_cert_chain will construct a copy
of the chain without the leaf if needed.
Since the serialised format of a client session has changed, an
|is_server| boolean is added to the ASN.1 that defaults to true. Thus
any old client sessions will be parsed as server sessions and (silently)
discarded by a client.
Change-Id: Ibcf72bc8a130cedb423bc0fd3417868e0af3ca3e
Reviewed-on: https://boringssl-review.googlesource.com/12704
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is to free up moving ssl->state into SSL_HANDSHAKE. ssl->state
serves two purposes right now. First, it is the state tracking for
SSL_HANDSHAKE. Second, it lets the system know there is a handshake
waiting to complete.
Instead, arrange things so that, if there is a handshake waiting to
complete, hs is not NULL. That means we need to initialize it when
creating a new connection and when discovering a renego.
Note this means we cannot make initializing an SSL_HANDSHAKE depend on
client vs. server.
Change-Id: I585a8d7e700c4ffe4d372248d34c44106ad7e7a0
Reviewed-on: https://boringssl-review.googlesource.com/12696
Reviewed-by: David Benjamin <davidben@google.com>
This avoids needing a extra state around client certificates to avoid
calling the callbacks twice. This does, however, come with a behavior
change: configuring both callbacks won't work. No consumer does this.
(Except bssl_shim which needed slight tweaks.)
Change-Id: Ia5426ed2620e40eecdcf352216c4a46764e31a9a
Reviewed-on: https://boringssl-review.googlesource.com/12690
Reviewed-by: Adam Langley <agl@google.com>
Callers doing more interesting things than read and write tend to use
SSL_get_error. SSL_want_{read,write} are still used, however.
Change-Id: I21e83cc8046742857051f755868d86deffd23d81
Reviewed-on: https://boringssl-review.googlesource.com/12688
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
One of them is used in the new minimal SSL BIO, but cURL doesn't consume
it, so let's just leave it out. A consumer using asynchronous
certificate lookup is unlikely to be doing anything with SSL BIOs.
Change-Id: I10e7bfd643d3a531d42a96a8d675611d13722bd2
Reviewed-on: https://boringssl-review.googlesource.com/12686
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This was done by running:
./fuzz/cert -merge=1 ../fuzz/cert_corpus ~/openssl/fuzz/corpora/x509
I bumped the max_len while doing so because some of those are rather
large.
Change-Id: Ic2caa09d5ff9ab05b46363940a91a03f270cbad8
Reviewed-on: https://boringssl-review.googlesource.com/12682
Reviewed-by: Adam Langley <agl@google.com>
The error value is -2, but at this point ret has already been set to
some running answer and must be reset to -2.
(This is unreachable. BN_rshift only fails on caller or malloc error,
and it doesn't need to malloc when running in-place.)
Change-Id: I33930da84b00d1906bdee9d09b9504ea8121fac4
Reviewed-on: https://boringssl-review.googlesource.com/12681
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
For folks who prefer the named length constants, the current ones aren't
sufficient because the shared key isn't the private key or a public
value.
Well, it does have the same type as a public value, but it looks silly
to write:
uint8_t secret_key[X25519_PUBLIC_VALUE_LEN];
Change-Id: I391db8ee73e2b4305d0ddd22f6d99f6abbc6b45b
Reviewed-on: https://boringssl-review.googlesource.com/12680
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This currently only works for certificates parsed from the network, but
if making several connections that share certificates, some KB of memory
might be saved.
Change-Id: I0ea4589d7a8b5c41df225ad7f282b6d1376a8db4
Reviewed-on: https://boringssl-review.googlesource.com/12164
Reviewed-by: Adam Langley <alangley@gmail.com>
This change adds a STACK_OF(CRYPTO_BUFFER) to an SSL_SESSION which
contains the raw form of the received certificates. The X509-based
members still exist, but their |enc| buffer will alias the
CRYPTO_BUFFERs.
The serialisation format of SSL_SESSIONs is also changed, in a backwards
compatible way. Previously, some sessions would duplicate the leaf
certificate in the certificate chain. These sessions can still be read,
but will be written in a way incompatible with older versions of the
code. This should be fine because the situation where multiple versions
exchange serialised sessions is at the server, and the server doesn't
duplicate the leaf certifiate in the chain anyway.
Change-Id: Id3b75d24f1745795315cb7f8089a4ee4263fa938
Reviewed-on: https://boringssl-review.googlesource.com/12163
Reviewed-by: Adam Langley <alangley@gmail.com>
Right now the only way to set an OCSP response is SSL_CTX_set_ocsp_response
however this assumes that all the SSLs generated from a SSL_CTX share the
same OCSP response, which is wrong.
This is similar to the OpenSSL "function" SSL_get_tlsext_status_ocsp_resp,
the main difference being that this doesn't take ownership of the OCSP buffer.
In order to avoid memory duplication in case SSL_CTX has its own response,
a CRYPTO_BUFFER is used for both SSL_CTX and SSL.
Change-Id: I3a0697f82b805ac42a22be9b6bb596aa0b530025
Reviewed-on: https://boringssl-review.googlesource.com/12660
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Prior to 87eab4902d, due to some
confusions between configuration and connection state, SSL_clear had the
side effect of offering the previously established session on the new
connection.
wpa_supplicant relies on this behavior, so restore it for TLS 1.2 and
below and add a test. (This behavior is largely incompatible with TLS
1.3's post-handshake tickets, so it won't work in 1.3. It'll act as if
we configured an unresumable session instead.)
Change-Id: Iaee8c0afc1cb65c0ab7397435602732b901b1c2d
Reviewed-on: https://boringssl-review.googlesource.com/12632
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
s3_lib.c is nearly gone. ssl_get_cipher_preferences will fall away once
we remove the version-specific cipher lists. ssl_get_algorithm_prf and
the PRF stuff in general needs some revising (it was the motivation for
all the SSL_HANDSHAKE business). I've left ssl3_new / ssl3_free alone
for now because we don't have a good separation between common TLS/DTLS
connection state and state internal to the TLS SSL_PROTOCOL_METHOD.
Leaving that alone for now as there's lower-hanging fruit.
Change-Id: Idf7989123a387938aa89b6a052161c9fff4cbfb3
Reviewed-on: https://boringssl-review.googlesource.com/12584
Reviewed-by: Adam Langley <agl@google.com>
This was only used by Chromium and was since replaced with a custom BIO.
Though it meant a new ring buffer implementation, custom BIOs seem a
better solution for folks who wish to do particularly complicated
things, until the new SSL API is available. External-buffer BIO pairs
were effectively a really confusing and leaky abstraction over a ring
buffer anyway.
Change-Id: I0e201317ff87cdccb17b2f8c260ee5bb06c74771
Reviewed-on: https://boringssl-review.googlesource.com/12626
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This allows a consumer to disable Channel ID (for instance, it may be
enabled on the SSL_CTX and later disabled on the SSL) without reaching
into the SSL struct directly.
Deprecate the old APIs in favor of these.
BUG=6
Change-Id: I193bf94bc1f537e1a81602a39fc2b9a73f44c73b
Reviewed-on: https://boringssl-review.googlesource.com/12623
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This change will cause getrandom to be used in preference to
/dev/urandom when supported by the kernel.
This will also cause BoringSSL-using processes to block until the
entropy pool is initialised on systems that support getrandom(2).
Change-Id: I2d3a17891502c85884c77138ef0f3a719d7ecfe6
Reviewed-on: https://boringssl-review.googlesource.com/12421
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We currently look up SSL_HANDSHAKE off of ssl->s3->hs everywhere, but
this is a little dangerous. Unlike ssl->s3->tmp, ssl->s3->hs may not be
present. Right now we just know not to call some functions outside the
handshake.
Instead, code which expects to only be called during a handshake should
take an explicit SSL_HANDSHAKE * parameter and can assume it non-NULL.
This replaces the SSL * parameter. Instead, that is looked up from
hs->ssl.
Code which is called in both cases, reads from ssl->s3->hs. Ultimately,
we should get to the point that all direct access of ssl->s3->hs needs
to be NULL-checked.
As a start, manage the lifetime of the ssl->s3->hs in SSL_do_handshake.
This allows the top-level handshake_func hooks to be passed in the
SSL_HANDSHAKE *. Later work will route it through the stack. False Start
is a little wonky, but I think this is cleaner overall.
Change-Id: I26dfeb95f1bc5a0a630b5c442c90c26a6b9e2efe
Reviewed-on: https://boringssl-review.googlesource.com/12236
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Previously, gcm.c contained a lot of workarounds for cases where BSWAP8
wasn't defined. Rather than handle this in each place, just make it
always available.
While we're here, make these macros inline functions instead and rename
them to something less likely to collide.
Change-Id: I9f2602f8b9965c63a86b177a8a084afb8b53a253
Reviewed-on: https://boringssl-review.googlesource.com/12479
Commit-Queue: Adam Langley <alangley@gmail.com>
Reviewed-by: Adam Langley <agl@google.com>
The key is only needed during initialisation because after that point it
is implicit in the table of powers. So no need to keep it around. There
was a non-specific “haunted house” comment about not changing this, but
I've successfully tested with all the assembly versions so I think that
comment is no longer true.
Change-Id: Id110156afb528904f114d9a4ff2440e03a1a69b8
Reviewed-on: https://boringssl-review.googlesource.com/12477
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
This should shave 20% (40 seconds) off our Windows cycle times, going by
the graphs. It's 15% off our Linux ones, but that 15% is only 11
seconds.
Change-Id: I077c3924c722d597f66fc6dec72932ed0c81660a
Reviewed-on: https://boringssl-review.googlesource.com/12562
Reviewed-by: Adam Langley <agl@google.com>
bot_update does a git clean -dff before each run, so we were
redownloading all the utilities on each run. This should make the bots
only download them when the change. (Chromium's setup is similar.)
Change-Id: I7eb83217761ceabe58b5480242a7df93d9bfaa52
Reviewed-on: https://boringssl-review.googlesource.com/12561
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
MSVC, on 32-bit systems, defines sizeof(long)=4 which means that a
uint32_t could end up negative when passed to |ASN1_INTEGER_set| on
Windows.
Change-Id: Ib07487ab524550c832909bf10521aae61d654416
Reviewed-on: https://boringssl-review.googlesource.com/12560
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: Adam Langley <agl@google.com>
j and md_size are public values, so this can just be done directly. (If
they weren't, we'd have worse problems.) This makes the loop look the
same as the rotation loop below.
Change-Id: Ic75550ad4e40b2015668cb12c26ca2d20bd285b6
Reviewed-on: https://boringssl-review.googlesource.com/12474
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Due to recent changes, changing the SSL session timeout from cert_cb is
not possible anymore since the new |SSL_SESSION| is initialized *after*
cert_cb is run. The alternative would be using |SSL_CTX_set_timeout| but
the specific |SSL_CTX| could be shared by multiple |SSL|s.
Setting a value on a per-connection basis is useful in case timeouts
need to be calculated dynamically based on specific certificate/domain
information that would be retrieved from inside cert_cb (or other
callbacks).
It would also be possible to set the value to 0 to prevent session
resumption, which is not otherwise doable in the handshake callbacks.
Change-Id: I730a528c647f83f7f77f59b5b21d7e060e4c9843
Reviewed-on: https://boringssl-review.googlesource.com/12440
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The compiler should be plenty smart enough to decide whether to inline a
static function called only once. We don't need to resort to so
unreadable a ternary chain.
Change-Id: Iacc8e0c4147fc69008806a0cc36d9e632169601a
Reviewed-on: https://boringssl-review.googlesource.com/12466
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
If y is zero, there is no point with odd y, so the odd bit may not be
set, hence EC_R_INVALID_COMPRESSION_BIT. This code instead computed the
Kronecker symbol of x and changed the error code to
EC_R_INVALID_COMPRESSED_POINT if not a square.
As the comment says, this was (intended to be) unreachable. But it
seems x was a typo for tmp1. It dates to before upstream's
6fb60a84dd1ec81953917e0444dab50186617432, when BN_mod_sqrt gave
garbage if its input was not square. Now it emits BN_R_NOT_A_SQUARE.
Upstream's 48fe4d6233ac2d60745742a27f820dd88bc6689d then mapped
BN_R_NOT_A_SQUARE to EC_R_INVALID_COMPRESSED_POINT.
Change-Id: Id9e02fa1c154b61cc0c3a768c9cfe6bd9674c378
Reviewed-on: https://boringssl-review.googlesource.com/12463
Reviewed-by: Adam Langley <agl@google.com>
(Otherwise we end up touching potentially unwound stack.)
I looked into why our builders didn't catch this and it appears that, at
least with Clang 3.7, ASAN doesn't notice this. Perhaps Clang at that
version is being lazy about destructing the scoped CBB and so doesn't
actually go wrong.
Change-Id: Ia0f73e7eb662676439f024805fc8287a4e991ce0
Reviewed-on: https://boringssl-review.googlesource.com/12400
Reviewed-by: Adam Langley <agl@google.com>
This change contains a C implementation of SHA-1 for POWER using
AltiVec. It is almost as fast as the scalar-only assembly implementation
for POWER/POWERPC family in OpenSSL but it is easier to maintain and it
allows error checking with tools like ASAN.
This is tested only for ppc64le. It may nor may not work for other
platforms in the POWER/POWERPC familiy.
Before:
SHA-1 @ 16 bytes: ~30 MB/s
SHA-1 @ 8K: ~140 MB/s
After:
SHA-1 @ 16 bytes: ~70 MB/s
SHA-1 @ 8K: ~480 MB/s
Change-Id: I790352e86d9c0cc4e1e57d11c5a0aa5b0780ca6b
Reviewed-on: https://boringssl-review.googlesource.com/12203
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Previously the option to retain only the SHA-256 hash of client
certificates could only be set at the |SSL_CTX| level. This change makes
|SSL| objects inherit the setting from the |SSL_CTX|, but allows it to
be overridden on a per-|SSL| basis.
Change-Id: Id435934af3d425d5f008d2f3b9751d1d0884ee55
Reviewed-on: https://boringssl-review.googlesource.com/12182
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This changes our resumption strategy. Before, we would negotiate ciphers
only on fresh handshakes. On resumption, we would blindly use whatever
was in the session.
Instead, evaluate cipher suite preferences on every handshake.
Resumption requires that the saved cipher suite match the one that would
have been negotiated anyway. If client or server preferences changed
sufficiently, we decline the session.
This is much easier to reason about (we always pick the best cipher
suite), simpler, and avoids getting stuck under old preferences if
tickets are continuously renewed. Notably, although TLS 1.2 ticket
renewal does not work in practice, TLS 1.3 will renew tickets like
there's no tomorrow.
It also means we don't need dedicated code to avoid resuming a cipher
which has since been disabled. (That dedicated code was a little odd
anyway since the mask_k, etc., checks didn't occur. When cert_cb was
skipped on resumption, one could resume without ever configuring a
certificate! So we couldn't know whether to mask off RSA or ECDSA cipher
suites.)
Add tests which assert on this new arrangement.
BUG=116
Change-Id: Id40d851ccd87e06c46c6ec272527fd8ece8abfc6
Reviewed-on: https://boringssl-review.googlesource.com/11847
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is in preparation for determining the cipher suite (which, in TLS
1.2, requires the certificate be known) before resumption.
Note this has caller-visible effects:
- cert_cb is now called whether resumption occurs or not. Our only
consumer which uses this as a server is Node which will require a
patch to fix up their mucking about with SSL_get_session. (But the
patch should be quite upstreamable. More 1.1.0-compatible and
generally saner.)
- cert_cb is now called before new_session_cb and dos_protection_cb.
BUG=116
Change-Id: I6cc745757f63281fad714d4548f23880570204b0
Reviewed-on: https://boringssl-review.googlesource.com/11846
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This simplifies a little code around EMS and PSK KE modes, but requires
tweaking the SNI code.
The extensions that are more tightly integrated with the handshake are
still processed inline for now. It does, however, require an extra state
in 1.2 so the asynchronous session callback does not cause extensions to
be processed twice. Tweak a test enforce this.
This and a follow-up to move cert_cb before resumption are done in
preparation for resolving the cipher suite before resumption and only
resuming on match.
Note this has caller-visible effects:
- The legacy SNI callback happens before resumption.
- The ALPN callback happens before resumption.
- Custom extension ClientHello parsing callbacks also cannot depend on
resumption state.
- The DoS protection callback now runs after all the extension callbacks
as it is documented to be called after the resumption decision.
BUG=116
Change-Id: I1281a3b61789b95c370314aaed4f04c1babbc65f
Reviewed-on: https://boringssl-review.googlesource.com/11845
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
A BN_ULONG[P256_LIMBS] can't represent a negative number and
bn_set_words won't produce one. We only need to compare against P.
Change-Id: I7bd1c9e8c162751637459f23f3cfc56884d85864
Reviewed-on: https://boringssl-review.googlesource.com/12304
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
RT#4625
(Imported from upstream's e3057a57caf4274ea1fb074518e4714059dfcabf.)
Add a test in ec_test to cover the ecp_nistz256_points_mul change. Also
revise the low-level infinity tests to cover the changes in
ecp_nistz256_point_add. Upstream's 'infty' logic was also cleaned up to
be simpler and take advantage of the only cases where |p| is infinity.
Change-Id: Ie22de834bf79ecb6191e824ad9fc1bd6f9681b8b
Reviewed-on: https://boringssl-review.googlesource.com/12225
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
As a client, we must tolerate this to avoid interoperability failures
with allowed server behaviors.
BUG=117
Change-Id: I9c40a2a048282e2e63ab5ee1d40773fc2eda110a
Reviewed-on: https://boringssl-review.googlesource.com/12311
Reviewed-by: David Benjamin <davidben@google.com>
The draft 18 implementation did not compute scts_requested correctly. As
a result, it always believed SCTs were requested. Fix this and add tests
for unsolicited OCSP responses and SCTs at all versions.
Thanks to Daniel Hirche for the report.
Change-Id: Ifc59c5c4d7edba5703fa485c6c7a4055b15954b4
Reviewed-on: https://boringssl-review.googlesource.com/12305
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Having that logic in two different places is a nuisance when we go to
add new checks like resumption stuff. Along the way, this adds missing
tests for the ClientHello cipher/session consistency check. (We'll
eventually get it for free once the cipher/resumption change is
unblocked, but get this working in the meantime.)
This also fixes a bug where the session validity checks happened in the
wrong order relative to whether tickets_supported or renew_ticket was
looked at. Fix that by lifting that logic closer to the handshake.
Change-Id: I3f4b59cfe01064f9125277dc5834e62a36e64aae
Reviewed-on: https://boringssl-review.googlesource.com/12230
Reviewed-by: Adam Langley <agl@google.com>
The other field operations have an explicit _mont suffix to denote their
inputs and outputs are in the Montgomery domain, aside from
ecp_nistz256_neg which works either way. Do the same here.
Change-Id: I63741adaeba8140e29fb0b45dff72273e231add7
Reviewed-on: https://boringssl-review.googlesource.com/12224
Reviewed-by: Adam Langley <agl@google.com>
The Poly1305 state defined in the header file is just a 512-byte buffer.
The vector code aligns to 64 bytes but the non-vector code did not.
Since we have lots of space to spare, this change causes the non-vector
code to also align to 64 bytes.
Change-Id: I77e26616a709e770d6eb23df47d9e292742625d7
Reviewed-on: https://boringssl-review.googlesource.com/12201
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Some old assemblers can't cope with r0 in address. It's actually
sensible thing to do, because r0 is shunted to 0 in address arithmetic
and by refusing r0 assembler effectively makes you understand that.
(Imported from upstream's a54aba531327285f64cf13a909bc129e9f9d5970.)
This also pulls in a trailing whitespace fix from upstream's
609b0852e4d50251857dbbac3141ba042e35a9ae.
Change-Id: Ieec0bc8d24b98f86ce4fc9ee6ce5126d127cf452
Reviewed-on: https://boringssl-review.googlesource.com/12188
Reviewed-by: Adam Langley <agl@google.com>
The ASN1_GENERALIZEDTIME_adj() function leaks an ASN1_GENERALIZEDTIME
object on an error path.
(Imported from upstream's fe71bb3ad97ed01ccf92812891cc2bc3ef3dce76.)
Thanks to Jinguang Dong for pointing out the bug.
Change-Id: I2c14662bb03b0cf957bd277bda487f05f07e89e7
Reviewed-on: https://boringssl-review.googlesource.com/12185
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
(Imported from upstream's 2a7dd548a6f5d6f7f84a89c98323b70a2822406e and
9ebcbbba81eba52282df9ad8902f047e2d501f51.)
This is only in the ADX assembly codepath which we do not enable. See
$addx = 0 at the top of the file. Nonetheless, import the test vector
and fix since we still have the code in there.
Upstream's test vector only compares a*b against b*a. The expected
answer was computed using Python.
Change-Id: I3a21093978c5946d83f2d6f4f8399f69d78202cf
Reviewed-on: https://boringssl-review.googlesource.com/12186
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We have at least three different external build definitions for the
fuzzers. That's enough that requiring each of them account for the split
fuzzer mode is probably too much turbulence.
Change-Id: I96dbb12a2b4f70bfa1b04cd0d15fda918bbf51d6
Reviewed-on: https://boringssl-review.googlesource.com/12183
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This change renames |peer| to |x509_peer| and |cert_chain| to
|x509_chain| in |SSL_SESSION|. It also renames |x509| to |x509_leaf| and
|chain| to |x509_chain| in |CERT|. (All with an eye to maybe making
them lazily initialised in the future).
This a) catches anyone who might be accessing these members directly and
b) makes space for |CRYPTO_BUFFER|-based values to take the unprefixed
names.
Change-Id: I10573304fb7d6f1ea03f9e645f7fc0acdaf71ac2
Reviewed-on: https://boringssl-review.googlesource.com/12162
Reviewed-by: David Benjamin <davidben@google.com>
In transition to removing it altogether, set SSL_MODE_NO_AUTO_CHAIN by
default. If we find some consumer was relying on it, this will allow
them to revert locally with SSL_(CTX_)clear_mode, but hopefully this was
just unused.
BUG=42
Change-Id: Iaf70a436a3324ce02e02dfb18213b6715c034ff2
Reviewed-on: https://boringssl-review.googlesource.com/12180
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
3c6a1ea674 switched what layer handled
the DTLS version mapping but forgot to correct the HelloVerifyRequest
logic to account for this.
Thanks to Jed Davis for noticing this.
Change-Id: I94ea18fc43a7ba15dd7250bfbcf44dbb3361b3ce
Reviewed-on: https://boringssl-review.googlesource.com/11984
Reviewed-by: David Benjamin <davidben@google.com>
This is already manually released at the end of the handshake. With this
change, it can happen implicitly, and SSL3_STATE shrinks further by
another pointer.
Change-Id: I94b9f2e4df55e8f2aa0b3a8799baa3b9a34d7ac1
Reviewed-on: https://boringssl-review.googlesource.com/12121
Reviewed-by: Adam Langley <agl@google.com>
Fuzzer mode explores the handshake, but at the cost of losing coverage
on the record layer. Add a separate build flag and client/server
corpora for this mode.
Note this requires tweaks in consumers' fuzzer build definitions.
BUG=111
Change-Id: I1026dc7301645e165a761068a1daad6eedc9271e
Reviewed-on: https://boringssl-review.googlesource.com/12108
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
The distinction for full handshakes is not meaningful (the timestamp is
currently the start of the handshake), but for renewed sessions, we
currently retain the timestamp of the original issuance.
Instead, when minting or receiving tickets, adjust session->time and
session->timeout so that session->time is the ticket issuance time.
This is still not our final TLS 1.3 behavior (which will need a both
renewable and non-renewable times to honor the server ticket lifetime),
but it gets us closer and unblocks handling ticket_age_add from TLS 1.3
draft 18 and sends the correct NewSessionTicket lifetime.
This fixes the ticket lifetime hint which we emit on the server to
mirror the true ticket lifetime. It also fixes the TLS 1.3 server code
to not set the ticket lifetime hint. There is no need to waste ticket
size with it, it is no longer a "hint" in TLS 1.3, and even in the TLS
1.3 code we didn't fill it in on the server.
Change-Id: I140541f1005a24e53e1b1eaa90996d6dada1c3a1
Reviewed-on: https://boringssl-review.googlesource.com/12105
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
If there is a malloc failure while assembling the ticket, call
CBB_cleanup. Also return -1 instead of 0; zero means EOF in the old
state machine and -1 means error. (Except enough of the stack gets it
wrong that consumers handle both, but we should fix this.)
Change-Id: I98541a9fa12772ec159f9992d1f9f53e5ca4cc5a
Reviewed-on: https://boringssl-review.googlesource.com/12104
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
There's no sense in flushing twice in one flight. This means when
writing a message is finally synchronous, we don't need the intermediate
state at all.
Change-Id: Iaca60d64917f82dce0456a8b15de4ee00f2d557b
Reviewed-on: https://boringssl-review.googlesource.com/12103
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.3 clarifies that a ticket lifetime of zero means the session is
unusable. We don't currently pay attention to that field (to be fixed in
later changes) but, in preparation for this, switch the >= to a >.
Change-Id: I0e67a0d97bc8def04914f121e84d3e7a2d640d2c
Reviewed-on: https://boringssl-review.googlesource.com/12102
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
These don't make sense and mean some SSL_SESSIONs serialize and
deserialize as different values. If we ever managed to create an
SSL_SESSION without a time, it would never expire because time always
gets set to time(NULL). If we ever created an SSL_SESSION with a zero
timeout, the timeout would be... three? Once we start adjusting
time/timeout to issuance time, driving timeout to zero is actually
plausible, so it should work properly.
Instead, make neither field optional. We always fill both out, so this
shouldn't have any effects. If it does, the only effect would be to
decline to resume some existing tickets which must have been so old that
we'd want them to have expired anyway.
Change-Id: Iee3620658c467dd6d96a2b695fec831721b03b5b
Reviewed-on: https://boringssl-review.googlesource.com/12101
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
A renewed session does not refresh the timeout. Add tests for this in
preparation for future changes which will revise this logic.
Specifically, TLS 1.3 draft 18's ticket_age_add logic will require some
tweaks in lifetime tracking to record when the ticket was minted. We'll
also likely wish to tweak the parameters for 1.3 to account for (a)
ECDHE-PSK means we're only worried about expiring a short-circuited
authentication rather than forward secrecy and (b) two hours is too
short for a QUIC 0-RTT replacement.
Change-Id: I0f1edd09151e7fcb5aee2742ef8600fbd7080df6
Reviewed-on: https://boringssl-review.googlesource.com/12002
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The naming breaks layering, but it seems we're stuck with it. We don't
seem to have bothered making first-party code call it BIO_print_errors
(I found no callers of BIO_print_errors), so let's just leave it at
ERR_print_errors.
Change-Id: Iddc22a6afc2c61d4b94ac555be95079e0f477171
Reviewed-on: https://boringssl-review.googlesource.com/11960
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is the last blocker within BoringSSL itself to opaquifying SSL.
(There are still blockers in consumers, of course.)
BUG=6
Change-Id: Ie3b8dcb78eeaa9aea7311406c5431a8625d60401
Reviewed-on: https://boringssl-review.googlesource.com/12061
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.3 ciphers are now always enabled and come with a hard-coded
preference order.
BUG=110
Change-Id: Idd9cb0d75fb6bf2676ecdee27d88893ff974c4a3
Reviewed-on: https://boringssl-review.googlesource.com/12025
Reviewed-by: Adam Langley <agl@google.com>
They will get very confused about which key they're using. Any caller
using exporters must either (a) leave renegotiation off or (b) be very
aware of when renegotiations happen anyway. (You need to somehow
coordinate with the peer about which epoch's exporter to use.)
Change-Id: I921ad01ac9bdc88f3fd0f8283757ce673a47ec75
Reviewed-on: https://boringssl-review.googlesource.com/12003
Reviewed-by: Adam Langley <agl@google.com>
The existing tests for this codepath require us to reconfigure the shim.
This will not work when TLS 1.3 cipher configuration is detached from
the old cipher language. It also doesn't hit codepaths like sessions
containing a TLS 1.3 version but TLS 1.2 cipher.
Instead, add some logic to the runner to rewrite tickets and build tests
out of that.
Change-Id: I57ac5d49c3069497ed9aaf430afc65c631014bf6
Reviewed-on: https://boringssl-review.googlesource.com/12024
Reviewed-by: Adam Langley <agl@google.com>
HTTP/2 places requirements on the cipher suite. So that servers can
decline HTTP/2 when these requirements aren't met, defer ALPN
negotiation.
See also b/32553041.
Change-Id: Idbcf049f9c8bda06a8be52a0154fe76e84607268
Reviewed-on: https://boringssl-review.googlesource.com/11982
Reviewed-by: Adam Langley <agl@google.com>
Bazel has moved their primary site to bazel.build.
(Thanks to Damien Martin-guillerez for the change.)
Change-Id: Ifb29dbb79f1e1d9611f40992a3e75e0fb5a3722a
Reviewed-on: https://boringssl-review.googlesource.com/11961
Reviewed-by: David Benjamin <davidben@google.com>
This should never happen, but the SSL_AEAD_CTX_new layer should enforce
key sizes as it's not locally obvious at the call site the caller didn't
get confused. There's still a mess of asserts below, but those should be
fixed by cutting the SSL_CIPHER/SSL_AEAD_CTX boundary differently.
(enc_key_len is validated by virtue of being passed into EVP_AEAD.)
BUG=chromium:659593
Change-Id: I8c91609bcef14ca1509c87aab981bbad6556975f
Reviewed-on: https://boringssl-review.googlesource.com/11940
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
These were forward-declared for SSL3_STATE but with that hidden, it's no
longer necessary.
Change-Id: I8c548822f56f6172b4033b2fa89c038adcec2caa
Reviewed-on: https://boringssl-review.googlesource.com/11860
Reviewed-by: Adam Langley <agl@google.com>
Tagging non-pointer return types const doesn't do anything and makes
some compilers grumpy. Thanks to Daniel Hirche for the report.
Change-Id: I157ddefd8f7e604b4d8317ffa2caddb8f0dd89de
Reviewed-on: https://boringssl-review.googlesource.com/11849
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is still rather a mess with how it's tied to SSL_AEAD_CTX_new
(probably these should get encapsulated in an SSL_AEAD struct), but this
avoids running the TLS 1.3 nonce logic on fake AEADs. This is impossible
based on cipher version checks, but we shouldn't need to rely on it.
It's also a little tidier since out_mac_secret_len is purely a function
of algorithm_mac.
BUG=chromium:659593
Change-Id: Icc24d43c54a582bcd189d55958e2d232ca2db4dd
Reviewed-on: https://boringssl-review.googlesource.com/11842
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This shouldn't happen, but it is good to check to avoid the potential
underflow in ssl_session_is_time_valid.
This required tweaking the mock clock in bssl_shim to stop going back in
time.
Change-Id: Id3ab8755139e989190d0b53d4bf90fe1ac203022
Reviewed-on: https://boringssl-review.googlesource.com/11841
Reviewed-by: David Benjamin <davidben@google.com>
We currently preferentially sign the largest hash available and
advertise such a preference for signatures we accept. We're just as
happy with SHA-256 and, all else equal, a smaller hash would be epsilon
more performant. We also currently claim, in TLS 1.3, we prefer P-384
over P-256 which is off.
Instead order SHA-256 first, next the larger SHA-2 hashes, and leave
SHA-1 at the bottom. Within a hash, order ECDSA > RSA-PSS > RSA-PKCS1.
This has the added consequence that we will preferentially pair P-256
with SHA-256 in signatures we generate instead of larger hashes that get
truncated anyway.
Change-Id: If4aee068ba6829e8c0ef7948f56e67a5213e4c50
Reviewed-on: https://boringssl-review.googlesource.com/11821
Reviewed-by: Adam Langley <agl@google.com>
SSL_CTX_set1_curves was being called with the size of the input data in
bytes rather than in ints.
BUG=chromium:659361
Change-Id: I90da1c6d60e92423c6b7d9efd744ae70ff589172
Reviewed-on: https://boringssl-review.googlesource.com/11840
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
SSL_write has messy semantics around retries. As a sanity-check, it does
pointer and length checks and requires the original and retry SSL_write
pass the same buffer pointer.
In some cases, buffer addresses may change but still include the
original data as a prefix on the retry. Callers then set
SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER to skip the pointer check. But, in
that case, the pointer may have been freed so doing a comparison is
undefined behavior.
Short-circuiting the pointer equality check avoids this problem.
Change-Id: I76cb8f7d45533504cd95287bc53897ca636af51d
Reviewed-on: https://boringssl-review.googlesource.com/11760
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Unhandled critical CRL extensions were not detected if they appeared
after the handled ones. (Upstream GitHub issue 1757). Thanks to John
Chuah for reporting this.
(Imported from upstream's 3ade92e785bb3777c92332f88e23f6ce906ee260.)
This additionally adds a regression test for this issue, generated with
der-ascii. The signatures on the CRLs were repaired per notes in
https://github.com/google/der-ascii/blob/master/samples/certificates.md
Change-Id: I74a77f92710e6ef7f46dcde5cb6ae9350084ddcb
Reviewed-on: https://boringssl-review.googlesource.com/11720
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
On the client we'll leave it off by default until the change has made it
through Chrome's release process. For TLS 1.3, there is no existing
breakage risk, so always do it. This saves us the trouble of having to
manually turn it on in servers.
See [0] for a data point of someone getting it wrong.
[0] https://hg.mozilla.org/projects/nss/rev/9dbc21b1c3cc
Change-Id: I74daad9e7efd2040e9d66d72d558b31f145e6c4c
Reviewed-on: https://boringssl-review.googlesource.com/11680
Reviewed-by: Adam Langley <agl@google.com>
Macros need a healthy dose of parentheses to avoid expression-level
misparses. Most of this comes from the clang-tidy CL here:
https://android-review.googlesource.com/c/235696/
Also switch most of the macros to use do { ... } while (0) to avoid all
the excessive comma operators and statement-level misparses.
Change-Id: I4c2ee51e347d2aa8c74a2d82de63838b03bbb0f9
Reviewed-on: https://boringssl-review.googlesource.com/11660
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This reverts commit 7b9bbd9639. This seems
to cause some problem linking with gold in Chromium:
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'free'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'malloc'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: warning: Cannot export local symbol 'realloc'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: error: treating warnings as errors
The same error in https://crbug.com/368351 implies we're actually
causing the compiler to make some assumptions it shouldn't make. The
obvious fix of marking things as visible causes crashes when built with
ASan (ASan's malloc interceptors and ours are conflicting somehow).
Revert this for now. We should study how ASan's interceptors work and
figure out how to make these two coexist.
BUG=655938
Change-Id: Iaad245d1028c442bd924d46519b20115d37a57c4
Reviewed-on: https://boringssl-review.googlesource.com/11604
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Data allocated in one fuzzer iteration and then freed in the next
complicates the leak checker. Avoid this by dropping hidden global state
at the end of each run.
Change-Id: Ice79704f2754a6b1f40e288df9b97ddd5b3b97d5
Reviewed-on: https://boringssl-review.googlesource.com/11600
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This clears the last of Android's build warnings from BoringSSL. These
pragmas aren't actually no-ops, but it just means that MinGW consumers
(i.e. just Android) need to explicitly list the dependency (which they
do).
There may be something to be said for removing those and having everyone
list dependencies, but I don't really want to chase down every
consumer's build files. Probably not worth the trouble.
Change-Id: I8fcff954a6d5de9471f456db15c54a1b17cb937a
Reviewed-on: https://boringssl-review.googlesource.com/11573
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is part of TLS 1.3 draft 16 but isn't much of a wire format change,
so go ahead and add it now. When rolling into Chromium, we'll want to
add an entry to the error mapping.
Change-Id: I8fd7f461dca83b725a31ae19ef96c890d603ce53
Reviewed-on: https://boringssl-review.googlesource.com/11563
Reviewed-by: David Benjamin <davidben@google.com>
We only save them at TLS 1.0 through 1.2. This saves 104 bytes of
per-connection memory.
Change-Id: If397bdc10e40f0194cba01024e0e9857d6b812f0
Reviewed-on: https://boringssl-review.googlesource.com/11571
Reviewed-by: Adam Langley <agl@google.com>
We need to retain a pair of Finished messages for renegotiation_info.
SSL 3.0's is actually larger than TLS 1.2's (always 12 bytes). Take
renegotiation out in preparation for trimming them to size.
Change-Id: I2e238c48aaf9be07dd696bc2a6af75e9b0ead299
Reviewed-on: https://boringssl-review.googlesource.com/11570
Reviewed-by: Adam Langley <agl@google.com>
tls-unique isn't defined at TLS 1.3 yet. (Given that it was too small in
1.2, they may just define a new one entirely?) SSL_get_(peer_)finished
doesn't work at 1.3 and is only used in lieu of computing tls-unique,
also undefined at SSL 3.0.
This is in preparation for trimming the copies of the Finished messages
we retain.
Change-Id: Iace99f2baea92c511c4041c592300dfbbe7226e2
Reviewed-on: https://boringssl-review.googlesource.com/11568
Reviewed-by: Adam Langley <agl@google.com>
SSL_HANDSHAKE is dropped after the handshake, so I've removed the logic
around smaller sizes. It's much simpler when we can use CBS_stow and
CBB_finish without extra bounds-checking.
Change-Id: Idafaa5d69e171aed9a8759f3d44e52cb01c40f39
Reviewed-on: https://boringssl-review.googlesource.com/11567
Reviewed-by: Adam Langley <agl@google.com>
Now not only the pointers but also the list itself is released after the
handshake completes.
Change-Id: I8b568147d2d4949b3b0efe58a93905f77a5a4481
Reviewed-on: https://boringssl-review.googlesource.com/11528
Reviewed-by: Adam Langley <agl@google.com>
It's weird and makes things more confusing. Only use it for local
preferences as there is a default. Peer preferences can be read
directly. Also simplify the logic for requiring a non-empty peer group
list for ECDHE. The normal logic will give us this for free.
Change-Id: I1916155fe246be988f20cbf0b1728380ec90ff3d
Reviewed-on: https://boringssl-review.googlesource.com/11527
Reviewed-by: Adam Langley <agl@google.com>
This function is now only ever called as a client, so there are no peer
preferences to check against. It is also now only called on peer curves,
so it only needs to be compared against local preferences.
Change-Id: I87f5b10cf4fe5fef9a9d60aff36010634192e90c
Reviewed-on: https://boringssl-review.googlesource.com/11526
Reviewed-by: Adam Langley <agl@google.com>
These functions are only called once. It ends up being not much code if
just done inline.
Change-Id: Ic432b313a6f7994ff9f51436cffbe0c3686a6c7c
Reviewed-on: https://boringssl-review.googlesource.com/11525
Reviewed-by: Adam Langley <agl@google.com>
This is in preparation for simplifying tls1_check_group_id, called by
tls1_check_ec_cert, which, in turn, is in preparation for moving the
peer group list to SSL_HANDSHAKE.
It also helps with bug #55. Move the key usage check to the certificate
configuration sanity check. There's no sense in doing it late. Also
remove the ECDSA peer curve check as we configure certificates
externally. With only one certificate, there's no sense in trying to
remove it.
BUG=55
Change-Id: I8c116337770d96cc9cfd4b4f0ca7939a4f05a1a9
Reviewed-on: https://boringssl-review.googlesource.com/11524
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This releases memory associated with them after the handshake. Note this
changes the behavior of |SSL_get0_certificate_types| and
|SSL_get_client_CA_list| slightly. Both functions now return NULL
outside of the handshake. But they were already documented to return
something undefined when not called at the CertificateRequest.
A survey of callers finds none that would care. (Note
SSL_get_client_CA_list is used both as a getter for the corresponding
server config setter and to report client handshake properties. Only the
latter is affected.) It's also pretty difficult to imagine why a caller
would wish to query this stuff at any other time, and there are clear
benefits to dropping the CA list after the handshake (some servers send
ABSURDLY large lists).
Change-Id: I3ac3b601ff0cfa601881ce77ae33d99bb5327004
Reviewed-on: https://boringssl-review.googlesource.com/11521
Reviewed-by: Adam Langley <agl@google.com>
EnableAllCiphers is problematic since some (version, cipher)
combinations aren't even defined and crash. Instead, use the
SendCipherSuite bug to mask the true cipher (which is becomes arbitrary)
for failure tests. The shim should fail long before we get further.
This lets us remove a number of weird checks in the TLS 1.3 code.
This also fixes the UnknownCipher tests which weren't actually testing
anything. EnableAllCiphers is now AdvertiseAllConfiguredCiphers and
does not filter out garbage values.
Change-Id: I7102fa893146bb0d096739e768c5a7aa339e51a8
Reviewed-on: https://boringssl-review.googlesource.com/11481
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This finally removes the last Android hack. Both Chromium and Android
end up needing this thing (Chromium needs it for WebCrypto but currently
uses the EVP_AEAD version and Android needs it by way of
wpa_supplicant).
On the Android side, the alternative is we finish upstream's
NEED_INTERNAL_AES_WRAP patch, but then it just uses its own key-wrap
implementation. This seems a little silly, considering we have a version
of key-wrap under a different API anyway.
It also doesn't make much sense to leave the EVP_AEAD API around if we
don't want people to use it and Chromium's the only consumer. Remove it
and I'll switch Chromium to the new---er, old--- APIs next roll.
Change-Id: I23a89cda25bddb6ac1033e4cd408165f393d1e6c
Reviewed-on: https://boringssl-review.googlesource.com/11410
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This is just to reduce the diff with upstream's files so it's easier to
tell what's going on. Upstream's files have lots and lots of trailing
whitespace. We were also missing a comment.
Change-Id: Icfc3b52939823a046a3744fd8e619b5bd6160715
Reviewed-on: https://boringssl-review.googlesource.com/11408
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
ConflictingVersionNegotiation really should be about, say 1.1 and 1.2
since those may be negotiated via either mechanism. (Those two cases are
actually kinda weird and we may wish to change the spec. But, in the
meantime, test that we have the expected semantics.)
Also test that we ignore true TLS 1.3's number for now, until we use it,
and that TLS 1.3 suitably ignores ClientHello.version.
Change-Id: I76c660ddd179313fa68b15a6fda7a698bef4d9c9
Reviewed-on: https://boringssl-review.googlesource.com/11407
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
They weren't updated for the new version negotiation. (Though right now
they're just testing that we *don't* implement the downgrade detection
because it's a draft version.)
Change-Id: I4c983ebcdf3180d682833caf1e0063467ea41544
Reviewed-on: https://boringssl-review.googlesource.com/11406
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Breaking from inside the inner loop doesn't do what the code wants.
Instead the outer loop will continue running and it's possible for it to
read off the end of the buffer. (Found with libFuzzer.)
Next change will update the other abort points in this code to match.
Change-Id: I006dca0cd4c31db1c4b5e84b996fe24b2f1e6c13
Reviewed-on: https://boringssl-review.googlesource.com/11421
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
If asn1_item_ex_combine_new fails in one of the ASN1_template_new calls
just before the ASN1_OP_NEW_POST call, ASN1_item_ex_free will free the
temporary object which ultimately calls ASN1_OP_FREE_POST. This means
that ASN1_OP_FREE_POST needs to account for zero-initialized objects.
Change-Id: I56fb63bd5c015d9dfe3961606449bc6f5b1259e3
Reviewed-on: https://boringssl-review.googlesource.com/11403
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This function is used by NGINX to enable specific curves for ECDH from a
configuration file. However when building with BoringSSL, since it's not
implmeneted, it falls back to using EC_KEY_new_by_curve_name() wich doesn't
support X25519.
Change-Id: I533df4ef302592c1a9f9fc8880bd85f796ce0ef3
Reviewed-on: https://boringssl-review.googlesource.com/11382
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This change adds AES and GHASH assembly from upstream, with the aim of
speeding up AES-GCM.
The PPC64LE assembly matches the interface of the ARMv8 assembly so I've
changed the prefix of both sets of asm functions to be the same
("aes_hw_").
Otherwise, the new assmebly files and Perlasm match exactly those from
upstream's c536b6be1a (from their master branch).
Before:
Did 1879000 AES-128-GCM (16 bytes) seal operations in 1000428us (1878196.1 ops/sec): 30.1 MB/s
Did 61000 AES-128-GCM (1350 bytes) seal operations in 1006660us (60596.4 ops/sec): 81.8 MB/s
Did 11000 AES-128-GCM (8192 bytes) seal operations in 1072649us (10255.0 ops/sec): 84.0 MB/s
Did 1665000 AES-256-GCM (16 bytes) seal operations in 1000591us (1664016.6 ops/sec): 26.6 MB/s
Did 52000 AES-256-GCM (1350 bytes) seal operations in 1006971us (51640.0 ops/sec): 69.7 MB/s
Did 8840 AES-256-GCM (8192 bytes) seal operations in 1013294us (8724.0 ops/sec): 71.5 MB/s
After:
Did 4994000 AES-128-GCM (16 bytes) seal operations in 1000017us (4993915.1 ops/sec): 79.9 MB/s
Did 1389000 AES-128-GCM (1350 bytes) seal operations in 1000073us (1388898.6 ops/sec): 1875.0 MB/s
Did 319000 AES-128-GCM (8192 bytes) seal operations in 1000101us (318967.8 ops/sec): 2613.0 MB/s
Did 4668000 AES-256-GCM (16 bytes) seal operations in 1000149us (4667304.6 ops/sec): 74.7 MB/s
Did 1202000 AES-256-GCM (1350 bytes) seal operations in 1000646us (1201224.0 ops/sec): 1621.7 MB/s
Did 269000 AES-256-GCM (8192 bytes) seal operations in 1002804us (268247.8 ops/sec): 2197.5 MB/s
Change-Id: Id848562bd4e1aa79a4683012501dfa5e6c08cfcc
Reviewed-on: https://boringssl-review.googlesource.com/11262
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is in preparation for implementing the version extension and is
probably what we should have done from the beginning as it makes
intolerance bugs simpler.
This means knobs like SendClientVersion and SendServerVersion deal with
the wire values while knobs like NegotiateVersion and MaxVersion deal
with logical versions. (This matches how the bugs have always worked.
SendFoo is just a weird post-processing bit on the handshake messages
while NegotiateVersion actually changes how BoGo behaves.)
BUG=90
Change-Id: I7f359d798d0899fa2742107fb3d854be19e731a4
Reviewed-on: https://boringssl-review.googlesource.com/11300
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This GREASEs cipher suites, groups, and extensions. For now, we'll
always place them in a hard-coded position. We can experiment with more
interesting strategies later.
If we add new ciphers and curves, presumably we prefer them over current
ones, so place GREASE values at the front. This prevents implementations
from parsing only the first value and ignoring the rest.
Add two new extensions, one empty and one non-empty. Place the empty one
in front (IBM WebSphere can't handle trailing empty extensions) and the
non-empty one at the end.
Change-Id: If2e009936bc298cedf2a7a593ce7d5d5ddbb841a
Reviewed-on: https://boringssl-review.googlesource.com/11241
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The high-level documentation for CBB describes using CBB_flush when a
child goes out of scope, but the function level documentation for
CBB_flush is less clear that CBB_flush will result in the CBB being
safe to use after the children go out of scope.
Change-Id: I58bf9e59a87d2be31a969097455aeeae6381efb3
Reviewed-on: https://boringssl-review.googlesource.com/11261
Reviewed-by: David Benjamin <davidben@google.com>
We used upstream's reformat script, but they had stuck hyphens
everywhere to tell indent to leave a comment alone. Fix this one since
it was especially hard to read.
Change-Id: I9f43bd57dbcf66b79b775ad10ee67867d815ed33
Reviewed-on: https://boringssl-review.googlesource.com/11243
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This was done by first minimizing the existing set and then merging in a
fresh recording from runner. Glancing through LCOV output does not
reveal anything anomolous. Fuzzer mode seems to be working as expected.
Change-Id: Ife0959a5e16e3c7e2e5a2deb0c32539ff2bc740b
Reviewed-on: https://boringssl-review.googlesource.com/11229
Reviewed-by: Adam Langley <agl@google.com>
This allows the fuzzer to discover server-side resumption paths by
simply supplying what we'd like the ticket to decrypt to in the clear.
We also have a natural way to get transcripts out of runner. We record
the runner-side transcripts, so all resumption handshakes will replay
the shim-created unencrypted tickets.
BUG=104
Change-Id: Icf9cbf4af520077d38e2c8c2766b6f8bfa3c9ab5
Reviewed-on: https://boringssl-review.googlesource.com/11224
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We want to ensure -fuzzer passes tests, except for the tests it
intentionally fails on. This ensures that we don't lose our ability to
refresh the fuzzer transcripts.
Change-Id: I761856c30379a3934fd46a24627ef8415b136f93
Reviewed-on: https://boringssl-review.googlesource.com/11221
Reviewed-by: Adam Langley <agl@google.com>
Apparently we never wrote one of those. Also send a decrypt_error alert
to be consistent with all the other signature checks.
Change-Id: Ib5624d098d1e3086245192cdce92f5df26005064
Reviewed-on: https://boringssl-review.googlesource.com/11180
Reviewed-by: David Benjamin <davidben@google.com>
SSL_peek works fine for us, but OpenSSL 1.1.0 regressed this
(https://github.com/openssl/openssl/issues/1563), and we don't have
tests either. Fix this.
SSL_peek can handle all weird events that SSL_read can, so use runner
and tell bssl_shim to do a SSL_peek + SSL_peek + SSL_read instead of
SSL_read. Then add tests for all the events we may discover.
Change-Id: I9e8635e3ca19653a02a883f220ab1332d4412f98
Reviewed-on: https://boringssl-review.googlesource.com/11090
Reviewed-by: Adam Langley <agl@google.com>
We'd previously been assuming we'd want to predict P-256 and X25519 but,
on reflection, that's nonsense. Although, today, P-256 is widespread and
X25519 is less so, that's not the right question to ask. Those servers
are all 1.2.
The right question is whether we believe enough servers will get to TLS
1.3 before X25519 to justify wasting 64 bytes on all other connections.
Given that OpenSSL has already shipped X25519 and Microsoft was doing
interop testing on X25519 around when we were shipping it, I think the
answer is no.
Moreover, if we are wrong, it will be easier to go from predicting one
group to two rather than the inverse (provided we send a fake one with
GREASE). I anticipate prediction-miss HelloRetryRequest logic across the
TLS/TCP ecosystem will be largely untested (no one wants to pay an RTT),
so taking a group out of the predicted set will likely be a risky
operation.
Only predicting one group also makes things a bit simpler. I haven't
done this here, but we'll be able to fold the 1.2 and 1.3 ecdh_ctx's
together, even.
Change-Id: Ie7e42d3105aca48eb9d97e2e05a16c5379aa66a3
Reviewed-on: https://boringssl-review.googlesource.com/10960
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The old numbers violate a MUST-level requirement in TLS 1.2 to not
advertise anonymous (0x0700 ends in 0x00). The spec has been updated
with new allocations which avoid these.
BUG=webrtc:6342
Change-Id: Ia5663ada98fa1ebf0f8a7f50fe74a0e9206c4194
Reviewed-on: https://boringssl-review.googlesource.com/11131
Reviewed-by: Adam Langley <agl@google.com>
Upstream added these functions after we did but decided to change the
names slightly. I'm not sure why they wanted to add the "proto" in
there, but align with them nonetheless so the ecosystem only has one set
of these functions.
BUG=90
Change-Id: Ia9863c58c9734374092051f02952b112806040cc
Reviewed-on: https://boringssl-review.googlesource.com/11123
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is in preparation for using the supported_versions extension to
experiment with draft TLS 1.3 versions, since we don't wish to restore
the fallback. With versions begin opaque values, we will want
version_from_wire to reject unknown values, not attempt to preserve
order in some way.
This means ClientHello.version processing needs to be separate code.
That's just written out fully in negotiate_version now. It also means
SSL_set_{min,max}_version will notice invalid inputs which aligns us
better with upstream's versions of those APIs.
This CL doesn't replace ssl->version with an internal-representation
version, though follow work should do it once a couple of changes land
in consumers.
BUG=90
Change-Id: Id2f5e1fa72847c823ee7f082e9e69f55e51ce9da
Reviewed-on: https://boringssl-review.googlesource.com/11122
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Passing --quiet makes valgrind only print out errors, so we don't need
to suppress things. Combine that with checking valgrind's dedicated exit
code so we notice errors that happen before the "---DONE---" marker.
This makes that marker unnecessary for valgrind. all_tests.go was not
sensitive to this, but still would do well to have valgrind be silent.
Change-Id: I841edf7de87081137e38990e647e989fd7567295
Reviewed-on: https://boringssl-review.googlesource.com/11128
Reviewed-by: Adam Langley <agl@google.com>
Runner needs to implement fuzzer mode as well so we can record
transcripts from it. A bunch of tests were failing:
- C and Go disagreed on what fuzzer mode did to TLS 1.3 padding. So we
fuzz more code, align Go with C. Fuzzer mode TLS 1.3 still pads but
just skips the final AEAD.
- The deterministic RNG should be applied per test, not per exchange. It
turns out, if your RNG is deterministic, one tends to pick the same
session ID over and over which confuses clients. (Resumption is
signaled by echoing the session ID.)
Now the only failing tests are the ones one would expect to fail.
BUG=79
Change-Id: Ica23881a6e726adae71e6767730519214ebcd62a
Reviewed-on: https://boringssl-review.googlesource.com/11126
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Plain PSK omits the ServerKeyExchange when there is no hint and includes
it otherwise (it should have always sent it), while other PSK ciphers
like ECDHE_PSK cannot omit the hint. Having different capabilities here
is odd and RFC 4279 5.2 suggests that all PSK ciphers are capable of
"[not] provid[ing] an identity hint".
Interpret this to mean no identity hint and empty identity hint are the
same state. Annoyingly, this gives a plain PSK implementation two
options for spelling an empty hint. The spec isn't clear and this is not
really a battle worth fighting, so I've left both acceptable and added a
test for this case.
See also https://android-review.googlesource.com/c/275217/. This is also
consistent with Android's PskKeyManager API, our only consumer anyway.
https://developer.android.com/reference/android/net/PskKeyManager.html
Change-Id: I8a8e6cc1f7dd1b8b202cdaf3d4f151bebfb4a25b
Reviewed-on: https://boringssl-review.googlesource.com/11087
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Android uses MinGW for some host tools on Windows. That toolchain
doesn't support the #pragma tricks we use for thread-local destructors,
but does appear to support pthreads.
This also lets us remove the INIT_ONCE workaround, although that's
removable anyway since Android's MinGW is now new enough.
Change-Id: I8d1573923fdaac880a50d84acbebbf87461c50d2
Reviewed-on: https://boringssl-review.googlesource.com/11125
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Kenny Root <kroot@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
C99 decided that, like PRI* macros, UINT64_C and friends should be
conditioned on __STDC_CONSTANT_MACROS in C++. C++11 then decided this
was ridiculous and overruled this decision. However, Android's headers
in older NDKs mistakenly followed the C99 rules for C++, so work around
this.
This fixes the android_arm bots.
Change-Id: I3b49e8dfc20190ebfa78876909bd0dccd3e210ea
Reviewed-on: https://boringssl-review.googlesource.com/11089
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Android currently implements this manually (see NativeBN_putULongInt) by
reaching into BIGNUM's internals. BN_ULONG is a somewhat unfortunate API
anyway as the size is platform-dependent, so add a platform-independent
way to do this.
The other things Android needs are going to need more work, but this
one's easy.
BUG=97
Change-Id: I4af4dc29f9845bdce0f0663c379b4b5d3e1dc46e
Reviewed-on: https://boringssl-review.googlesource.com/11088
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
clang's integrated assembler does not appear to support debug symbols
yet. (And somehow CMake has another statefulness bug that causes this to
only manifest on a second run, so the try bots aren't noticing.)
Also don't clobber the existing CMAKE_ASM_FLAGS value.
Change-Id: Ia04345f0dc2f9833ac13912d761cfab3479c10cd
Reviewed-on: https://boringssl-review.googlesource.com/11083
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
access_denied is only used to indicate client cert errors and Chrome
maps it to ERR_SSL_BAD_CLIENT_AUTH_CERT accordingly:
access_denied
A valid certificate was received, but when access control was
applied, the sender decided not to proceed with negotiation. This
message is always fatal.
We don't appear to be the cause of Chrome's recent
ERR_SSL_BAD_CLIENT_AUTH_CERT spike, but we should send these correctly
nonetheless.
If the early callback fails, handshake_failure seems the most
appropriate ("I was unable to find suitable parameters"). There isn't
really an alert that matches DoS, but internal_error seems okay?
internal_error
An internal error unrelated to the peer or the correctness of the
protocol (such as a memory allocation failure) makes it impossible
to continue. This message is always fatal.
There's nothing wrong, per se, with your ClientHello, but I just can't
deal with it right now. Please go away.
Change-Id: Icd1c998c09dc42daa4b309c1a4a0f136b85eb69d
Reviewed-on: https://boringssl-review.googlesource.com/11084
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This function (actually a macro in OpenSSL) is used by several projects
(e.g. OpenResty, OpenVPN, ...) so it can useuful to provide it for
compatibility.
However, depending on the semantics of the BIO type (e.g. BIO_pair), the
return value can be meaningless, which might explain why it was removed.
Change-Id: I0e432c92222c267eb994d32b0bc28e999c4b40a7
Reviewed-on: https://boringssl-review.googlesource.com/11020
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reason for revert: Right now in TLS 1.3, certificate_auth is exactly
the same as whether we're doing resumption. With the weird reauth
stuff punted to later in the spec, having extra state is just more
room for bugs to creep in.
Original issue's description:
> Determining certificate_auth and key_exchange based on SSL.
>
> This allows us to switch TLS 1.3 to use non-cipher based negotiation
> without needing to use separate functions between 1.3 and below.
>
> BUG=77
>
> Change-Id: I9207e7a6793cb69e8300e2c15afe3548cbf82af2
> Reviewed-on: https://boringssl-review.googlesource.com/10803
> Reviewed-by: David Benjamin <davidben@google.com>
> Commit-Queue: David Benjamin <davidben@google.com>
> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
>
Change-Id: I240e3ee959ffd1f2481a06eabece3af554d20ffa
Reviewed-on: https://boringssl-review.googlesource.com/11008
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
It's easy to forget to check those. Unfortunately, it's also easy to
forget to check inner structures, which is going to be harder to stress,
but do these to start with. In doing, so fix up and unify some
error-handling, and add a missing check when parsing TLS 1.2
CertificateRequest.
This was also inspired by the recent IETF posting.
Change-Id: I27fe3cd3506258389a75d486036388400f0a33ba
Reviewed-on: https://boringssl-review.googlesource.com/10963
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This was done just by grepping for 'size_t i;' and 'size_t j;'. I left
everything in crypto/x509 and friends alone.
There's some instances in gcm.c that are non-trivial and pulled into a
separate CL for ease of review.
Change-Id: I6515804e3097f7e90855f1e7610868ee87117223
Reviewed-on: https://boringssl-review.googlesource.com/10801
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Really the only thing we should be doing with these ciphers is hastening
their demise, but it was the weekend and this seemed like fun.
EVP_tls_cbc_copy_mac needs to rotate a buffer by a secret amount. (It
extracts the MAC, but rotated.) We have two codepaths for this. If
CBC_MAC_ROTATE_IN_PLACE is defined (always on), we make some assumptions
abuot cache lines, play games with volatile, and hope that doesn't leak
anything. Otherwise, we do O(N^2) work to constant-time select the
rotation incidences.
But we can do O(N lg N). Rotate by powers of two and constant-time
select by the offset's bit positions. (Handwaivy lower-bound: an array
position has N possible values, so, armed with only a constant-time
select, we need O(lg N) work to resolve it. There's N array positions,
so O(N lg N).)
A microbenchmark of EVP_tls_cbc_copy_mac shows this is 27% faster than
the old one, but still 32% slower than the in-place version.
in-place:
Did 15724000 CopyFromMAC operations in 20000744us (786170.8 ops/sec)
N^2:
Did 8443000 CopyFromMAC operations in 20001582us (422116.6 ops/sec)
N lg N:
Did 10718000 CopyFromMAC operations in 20000763us (535879.6 ops/sec)
This results in the following the CBC ciphers. I measured
AES-128-CBC-SHA1 and AES-256-CBC-SHA384 which are, respectively, the
cipher where the other bits are the fastest and the cipher where N is
largest.
in-place:
Did 2634000 AES-128-CBC-SHA1 (16 bytes) open operations in 10000739us (263380.5 ops/sec): 4.2 MB/s
Did 1424000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10002782us (142360.4 ops/sec): 192.2 MB/s
Did 531000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10002460us (53086.9 ops/sec): 434.9 MB/s
N^2:
Did 2529000 AES-128-CBC-SHA1 (16 bytes) open operations in 10001474us (252862.7 ops/sec): 4.0 MB/s
Did 1392000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10006659us (139107.4 ops/sec): 187.8 MB/s
Did 528000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10001276us (52793.3 ops/sec): 432.5 MB/s
N lg N:
Did 2531000 AES-128-CBC-SHA1 (16 bytes) open operations in 10003057us (253022.7 ops/sec): 4.0 MB/s
Did 1390000 AES-128-CBC-SHA1 (1350 bytes) open operations in 10003287us (138954.3 ops/sec): 187.6 MB/s
Did 531000 AES-128-CBC-SHA1 (8192 bytes) open operations in 10002448us (53087.0 ops/sec): 434.9 MB/s
in-place:
Did 1249000 AES-256-CBC-SHA384 (16 bytes) open operations in 10001767us (124877.9 ops/sec): 2.0 MB/s
Did 879000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10009244us (87818.8 ops/sec): 118.6 MB/s
Did 344000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10025897us (34311.1 ops/sec): 281.1 MB/s
N^2:
Did 1072000 AES-256-CBC-SHA384 (16 bytes) open operations in 10008090us (107113.3 ops/sec): 1.7 MB/s
Did 780000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10007787us (77939.3 ops/sec): 105.2 MB/s
Did 333000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10016332us (33245.7 ops/sec): 272.3 MB/s
N lg N:
Did 1168000 AES-256-CBC-SHA384 (16 bytes) open operations in 10007671us (116710.5 ops/sec): 1.9 MB/s
Did 836000 AES-256-CBC-SHA384 (1350 bytes) open operations in 10001536us (83587.2 ops/sec): 112.8 MB/s
Did 339000 AES-256-CBC-SHA384 (8192 bytes) open operations in 10018522us (33837.3 ops/sec): 277.2 MB/s
TLS CBC performance isn't as important as it was before, and the costs
aren't that high, so avoid making assumptions about cache lines. (If we
care much about CBC open performance, we probably should get the malloc
out of EVP_tls_cbc_digest_record at the end.)
Change-Id: Ib8d8271be4b09e5635062cd3b039e1e96f0d9d3d
Reviewed-on: https://boringssl-review.googlesource.com/11003
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
In OpenSSL, they're used in the 32-bit x86 Blowfish, CAST, DES, and RC5
assembly bits. We don't have any of those.
Change-Id: I36f22ca873842a200323cd3f398d2446f7bbabca
Reviewed-on: https://boringssl-review.googlesource.com/10780
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This simplifies the logic around SSL_clear to reset the state for a new
handshake. The state around here is still a little iffy, but this is a
slight improvement.
The SSL_ST_CONNECT and SSL_ST_ACCEPT states are still kept separate to
avoid problems with the info callback reporting SSL_ST_INIT. Glancing
through info callback consumers, although they're all debugging, they
tend to assume that all intermediate states either have only
SSL_ST_CONNECT set or only SSL_ST_ACCEPT set.
(They also all look identical which makes me think it's copy-and-pasted
from OpenSSL command-line tool or something.)
Change-Id: I55503781e52b51b4ca829256c14de6f5942dae51
Reviewed-on: https://boringssl-review.googlesource.com/10760
Reviewed-by: Adam Langley <agl@google.com>
This mechanism is incompatible with deploying draft versions of TLS 1.3.
Suppose a draft M client talks to a draft N server, M != N. (Either M or
N could also be the final standard revision should there be lingering
draft clients or servers.) The server will notice the mismatch and
pretend ClientHello.version is TLS 1.2, not TLS 1.3. But this will
trigger anti-downgrade signal and cause an interop failure! And if it
doesn't trigger, all the clever tricks around ServerHello.random being
signed in TLS 1.2 are moot.
We'll put this back when the dust has settled.
Change-Id: Ic3cf72b7c31ba91e5cca0cfd7a3fca830c493a43
Reviewed-on: https://boringssl-review.googlesource.com/11005
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We need time.h for clock_gettime on Linux. Previously, scoped_types.h
was pulling in everything and getting it for us, but now it doesn't
exist. We seem to have been pulling it in on accident anyway but
it seems Android's system headers end up not doing so.
Change-Id: I0a04495b1462649d77d62018e317c416803ac58d
Reviewed-on: https://boringssl-review.googlesource.com/11000
Reviewed-by: Matt Braithwaite <mab@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The compiler complains about:
error: explicit specialization of
'bssl::internal::Deleter<evp_pkey_st>' after instantiation
This is because, although the deleter's operator() is not instantiated
without emitting std::unique_ptr's destructor, the deleter itself *is*.
Deleters are allowed to have non-zero size, so a std::unique_ptr
actually embeds a copy of the deleter, so it needs the size of the
deleter.
As with all problems in computer science, we fix this with a layer of
indirection. Instead of specializing the deleter, we specialize
bssl::internal::DeleterImpl which, when specialized, has a static method
Free. That is only instantiated inside
bssl::internal::Deleter::operator(), giving us the desired properties.
(Did I mention forward decls are terrible? I wish people wouldn't want
them so much.)
Also appease clang-format.
Change-Id: I9a07b2fd13e8bdfbd204e225ac72c52d20a397dc
Reviewed-on: https://boringssl-review.googlesource.com/10964
Reviewed-by: Matt Braithwaite <mab@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Although RFC 6066 recommends against it, some servers send a warning
alert prior to ServerHello on SNI mismatch, and, per spec, TLS 1.2
allows it.
We're fine here, but add a test for it. It interacts interestingly with
TLS 1.3 forbidding warning alerts because it happens before version
negotiation.
Change-Id: I0032313c986c835b6ae1aa43da6ee0dad17a97c2
Reviewed-on: https://boringssl-review.googlesource.com/10800
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Add a test that RSA-PSS is available in TLS 1.2 by default, both for
signing and verifying. Note that if a custom SSL_PRIVATE_KEY_METHOD is
used and it sets signing preferences, it won't use RSA-PSS if it doesn't
know about it. (See *-Sign-Negotiate-* tests.)
Change-Id: I3776a0c95480188a135795f7ebf31f2b0e0626cc
Reviewed-on: https://boringssl-review.googlesource.com/10723
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Changing parameters on renegotiation makes all our APIs confusing. This
one has no reason to change, so lock it down. In particular, our
preference to forbid Token Binding + renego may be overridden at the
IETF, even though it's insane. Loosening it will be a bit less of a
headache if EMS can't change.
https://www.ietf.org/mail-archive/web/unbearable/current/msg00690.html
claims that this is already in the specification and enforced by NSS. I
can't find anything to this effect in the specification. It just says
the client MUST disable renegotiation when EMS is missing, which is
wishful thinking. At a glance, NSS doesn't seem to check, though I could
be misunderstanding the code.
Nonetheless, locking this down is a good idea anyway. Accurate or not,
take the email as an implicit endorsement of this from Mozilla.
Change-Id: I236b05991d28bed199763dcf2f47bbfb9d0322d7
Reviewed-on: https://boringssl-review.googlesource.com/10721
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This removes all but the generic C RC4 implementation. At this point we
want to optimize for size/simplicity rather than speed.
See also upstream's 3e9e810f2e047effb1056211794d2d12ec2b04e7 which
removed the RC4_CHUNK code and standardized on RC4_INDEX. A
since-removed comment says that it was implemented for "pre-21164a Alpha
CPUs don't have byte load/store instructions" and helps with SPARC and
MIPS.
This also removes all the manual loop unrolling.
Change-Id: I91135568483260b2e1e675f190fb00ce8f9eff3d
Reviewed-on: https://boringssl-review.googlesource.com/10720
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This and the following commits will import NIST's ECC test vectors.
Right now all our tests pass if I make P-224 act like P-521, which is
kind of embarrassing. (Other curves are actually tested, but only
because runner.go tests them against BoGo.)
Change-Id: Id0b20451ebd5f10f1d09765a810ad140bea28fa0
Reviewed-on: https://boringssl-review.googlesource.com/10700
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
We may need to implement high tag number form someday. CBS_get_asn1 has
an unsigned output to allow for this, but CBB_add_asn1 takes a uint8_t
(I think this might be my fault). Fix that which also fixes a
-Wconversion warning.
Simply leaving room in tag representation will still cause troubles
because the class and constructed bits overlap with bits for tag numbers
above 31. Probably the cleanest option would be to shift them to the top
3 bits of a u32 and thus not quite match the DER representation. Then
CBS_get_asn1 and CBB_add_asn1 will internally munge that into the DER
representation and consumers may continue to write things like:
tag_number | CBS_ASN1_CONTEXT_SPECIFIC
I haven't done that here, but in preparation for that, document that
consumers need to use the values and should refrain from assuming the
correspond to DER.
Change-Id: Ibc76e51f0bc3b843e48e89adddfe2eaba4843d12
Reviewed-on: https://boringssl-review.googlesource.com/10502
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
peer_sigalgs should live on SSL_HANDSHAKE. This both releases a little
bit of memory after the handshake is over and also avoids the bug where
the sigalgs get dropped if SSL_set_SSL_CTX is called at a bad time. See
also upstream's 14e14bf6964965d02ce89805d9de867f000095aa.
This only affects consumers using the old SNI callback and not
select_certificate_cb.
Add a test that the SNI callback works as expected. In doing so, add an
SSL_CTX version of the signing preferences API. This is a property of
the cert/key pair (really just the key) and should be tied to that. This
makes it a bit easier to have the regression test work with TLS 1.2 too.
I thought we'd fixed this already, but apparently not... :-/
BUG=95
Change-Id: I75b02fad4059e6aa46c3b05183a07d72880711b3
Reviewed-on: https://boringssl-review.googlesource.com/10445
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
958aaf1ea1, imported from upstream, had an
off-by-one error. Reproducing the failure is fairly easy as it can't
even serialize 1. See also upstream's
099e2968ed3c7d256cda048995626664082b1b30.
Rewrite the function completely with CBB and add a basic test.
BUG=chromium:639740
Change-Id: I41a91514c4bb9e83854824ed5258ffe4e49d9491
Reviewed-on: https://boringssl-review.googlesource.com/10540
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
I'll hold on regenerating the transcripts until either the protocol has
stablized more or we're ready to start actually deploying some of this,
but we can get this in now.
Confirmed these #ifdef points are covered by tests:
- BadFinished-*-TLS13
- *-InvalidSignature-*-TLS13
BUG=79
Change-Id: I5f6b9d0f50ac33d5cc79688928fb3fdf6df845ae
Reviewed-on: https://boringssl-review.googlesource.com/10500
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Having two copies of this is confusing. This field is inherently tied to
the certificate chain, which lives on SSL_SESSION, so this should live
there too. This also wasn't getting reset correctly on SSL_clear, but
this is now resolved.
Change-Id: I22b1734a93320bb0bf0dc31faa74d77a8e1de906
Reviewed-on: https://boringssl-review.googlesource.com/10283
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
As documented by OpenSSL, it does not interact with session resumption
correctly:
https://www.openssl.org/docs/manmaster/ssl/SSL_set_verify_result.html
Sadly, netty-tcnative calls it, but we should be able to get them to
take it out because it doesn't do anything. Two of the three calls are
immediately after SSL_new. In OpenSSL and BoringSSL as of the previous
commit, this does nothing.
The final call is in verify_callback (see SSL_set_verify). This callback
is called in X509_verify_cert by way of X509_STORE_CTX_set_verify_cb.
As soon as X509_verify_cert returns, ssl->verify_result is clobbered
anyway, so it doesn't do anything.
Within OpenSSL, it's used in testdane.c. As far as I can tell, it does
not actually do a handshake and just uses this function to fake having
done one. (Regardless, we don't need to build against that.)
This is done in preparation for removing ssl->verify_result in favor of
session->verify_result.
Change-Id: I7e32d7f26c44f70136c72e58be05a3a43e62582b
Reviewed-on: https://boringssl-review.googlesource.com/10485
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
In TLS 1.3 draft 14, due to resumption using a different cipher, this
is actually not too hard to mess up. (In fact BoGo didn't quite get it
right.)
Fortunately, the new cipher suite negotiation in draft 15 should make
this reasonable again once we implement it. In the meantime, test it.
Change-Id: I2eb948eeaaa051ecacaa9095b66ff149582ea11d
Reviewed-on: https://boringssl-review.googlesource.com/10442
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
9498e74 changed the default value of verify_result to an error. This
tripped up NGINX, which depends on a bug[1] in OpenSSL. netty-tcnative
also uses this behavior, though it currently isn't tripped up by 9498e74
because it calls |SSL_set_verify_result|. However, we would like to
remove |SSL_set_verify_result| and with two data points, it seems this
is behavior we must preserve.
This change sets |verify_result| to |X509_V_OK| when a) no client
certificate is requested or b) none is given and it's optional.
[1] See BUGS in https://www.openssl.org/docs/manmaster/ssl/SSL_get_verify_result.html
Change-Id: Ibd33660ae409bfe272963a8c39b7e9aa83c3d635
Reviewed-on: https://boringssl-review.googlesource.com/9067
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
I found an earlier reference for an algorithm for the optimized
computation of n0 that is very similar to the one in the "Montgomery
Multiplication" paper cited in the comments. Add a reference to it.
Henry S. Warren, Jr. pointed out that his "Montgomery Multiplication"
paper is not a chapter of his book, but a supplement to the book.
Correct the reference to it.
Change-Id: Iadeb148c61ce646d1262ccba0207a31ebdad63e9
Reviewed-on: https://boringssl-review.googlesource.com/10480
Reviewed-by: Adam Langley <agl@google.com>
This was causing some Android breakage. The real bug is actually
entirely in Android for getting its error-handling code wrong and not
handling multiple errors. I'll fix that. (See b/30917411.)
That said, BN_R_NO_INVERSE is a perfectly legitimate reason for those
operations to fail, so ERR_R_INTERNAL_ERROR isn't really a right thing
to push in front anyway. We're usually happy enough with single-error
returns (I'm still a little skeptical of this queue idea), so let's just
leave it at that.
Change-Id: I469b6e2b5987c6baec343e2cfa52bdcb6dc42879
Reviewed-on: https://boringssl-review.googlesource.com/10483
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The TLS 1.3 state machine is actually less in need of the aggressive
state machine coverage tests, but nonetheless, we should cover all
handshake shapes. PSK resumption and HelloRetryRequest were missing.
We were also accidentally running "DTLS" versions of the TLS 1.3 tests
but silently running TLS 1.2.
Change-Id: I65db4052b89d770db7e47738e73aaadde9634236
Reviewed-on: https://boringssl-review.googlesource.com/10441
Reviewed-by: Nick Harper <nharper@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
If an oversize BIGNUM is presented to BN_bn2dec() it can cause
BN_div_word() to fail and not reduce the value of 't' resulting
in OOB writes to the bn_data buffer and eventually crashing.
Fix by checking return value of BN_div_word() and checking writes
don't overflow buffer.
Thanks to Shi Lei for reporting this bug.
CVE-2016-2182
(Imported from upstream's e36f27ddb80a48e579783bc29fb3758988342b71.)
Change-Id: Ib9078921b4460952c4aa5a6b03ec39a03704bb90
Reviewed-on: https://boringssl-review.googlesource.com/10367
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
RT#4530
(Imported from upstream's 7123aa81e9fb19afb11fdf3850662c5f7ff1f19c.)
We've yet to enable this code, but this confirms that we do indeed need
to get our future all-variants stuff working on Windows as well as
Linux and find an AVX2-capable CI setup on each.
The crash here is caused by some win64-only code using %rax as a frame
pointer (perlasm injects a mov rax,rsp in the prologue of every win64
function).
Change-Id: Ifbe59ceb6ae29266d9cf8a461920344a32b6e555
Reviewed-on: https://boringssl-review.googlesource.com/10366
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Check for error return in BN_div_word().
(Imported from upstream's d871284aca5524c85a6460119ac1b1e38f7e19c6.)
This function is only called from crypto/obj to convert strings like
"1.2.3.4.5" to OIDs. We may wish to see about rewriting it just so it's
out of the way.
Change-Id: Ia8379d2dd30606f6a81ce24dee8852312cb7f127
Reviewed-on: https://boringssl-review.googlesource.com/10365
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
These functions are unused. Upstream recently needed to limit recursion
depth on this function in 81f69e5b69b8e87ca5d7080ab643ebda7808542c. It
looks like deeply nested BER constructed strings could cause unbounded
stack usage. Delete the function rather than import the fix.
Change-Id: I7868080fae52b46fb9f9147543c0f7970d8fff98
Reviewed-on: https://boringssl-review.googlesource.com/10368
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The weird function thing is a remnant of OpenSSL and I think something
weird involving Windows and symbols exported from dlls. These aren't
exposed in the public API, so have everything point to the tables
directly.
This is in preparation for making built-in EC_GROUPs static. (The static
EC_GROUPs won't be able to call a function wrapper.)
BUG=20
Change-Id: If33888430f32e51f48936db4046769aa1894e3aa
Reviewed-on: https://boringssl-review.googlesource.com/10346
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
In TLS 1.2 and below, the server is not supposed to echo it, but I just
came across a BigIP server which does. Document this so we know to take
care before trying to flip it in the future.
(It's actually kind of odd that it wasn't allowed to be sent given TLS
1.2 makes supported_groups interact with ECDSA client certificates. Ah
well.)
Change-Id: I4b97266f461e85bb1ad9bb935470e027f926d4df
Reviewed-on: https://boringssl-review.googlesource.com/10320
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
These are probably a good idea to ship so long as we have the PSK
callbacks at all, but they're not *completely* standard yet and Android
tests otherwise need updating to know about them. We don't care enough
about PSK to be in a rush to ship them, and taking them out is an easier
default action until then.
Change-Id: Ic646053d29b69a114e2efea61d593d5e912bdcd0
Reviewed-on: https://boringssl-review.googlesource.com/10225
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
People seem to like adding ifdefs for us for random initialization
functions that are cheap enough to add no-ops stubs for.
Change-Id: I7fb4e978e035329cd81d9bf33ab0d64fde6cc05f
Reviewed-on: https://boringssl-review.googlesource.com/10280
Reviewed-by: Adam Langley <agl@google.com>
If cert_cb runs asynchronously, we end up repeating a large part of very
stateful ClientHello processing. This seems to be mostly fine and there
are few users of server-side cert_cb (it's a new API in 1.0.2), but it's
a little scary.
This is also visible to external consumers because some callbacks get
called multiple times. We especially should try to avoid that as there
is no guarantee that these callbacks are idempotent and give the same
answer each time.
Change-Id: I212b2325eae2cfca0fb423dace101e466c5e5d4e
Reviewed-on: https://boringssl-review.googlesource.com/10224
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
It's odd that a function like ssl_bytes_to_cipher_list secretly has side
effects all over the place. This removes the need for the TLS 1.3 code
to re-query the version range, and it removes the requirement that the
RI extension be first.
Change-Id: Ic9af549db3aaa8880f3c591b8a13ba9ae91d6a46
Reviewed-on: https://boringssl-review.googlesource.com/10220
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Between TLS 1.2, TLS 1.3, and the early callback, we've got a lot of
ClientHello parsers. Unify everything on the early callback's parser. As
a side effect, this means we can parse a ClientHello fairly succinctly
from any function which will let us split up ClientHello states where
appropriate.
Change-Id: I2359b75f80926cc7d827570cf33f93029b39e525
Reviewed-on: https://boringssl-review.googlesource.com/10184
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Add the following cases:
- Maximal padding
- Maximal padding with each possible byte position wrong.
- When the input is not publicly too short to find a MAC, but the
unpadded value is too short. (This tests that
EVP_tls_cbc_remove_padding and EVP_tls_cbc_copy_mac coordinate
correctly. EVP_tls_cbc_remove_padding promises to also consider it
invalid padding if there is no room for a MAC.)
Change-Id: I8fe18121afb915e579a8236d0e3ef354f1f835bc
Reviewed-on: https://boringssl-review.googlesource.com/10182
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is more progress in letting other stacks use the test runner.
You can provide a per-shim configuration file that includes:
- A list of test patterns to be suppressed (presumably because
they don't work). This setting is ignored if -test is used.
- A translation table of expected errors to shim-specific errors.
BUG=92
Change-Id: I3c31d136e35c282e05d4919e18ba41d44ea9cf2a
Reviewed-on: https://boringssl-review.googlesource.com/9161
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The old implementation had a lot of size_t/int confusion. It also
accepted non-minimally-encoded OIDs. Unlike the old implementation, the
new one does not fall back to BIGNUMs and does not attempt to
pretty-print OIDs with components which do not fit in a uint64_t. Add
tests for these cases.
With this new implementation, hopefully we'll have a much easier time
enabling MSVC's size_t truncation warning later.
Change-Id: I602102b97cf9b02d874644f8ef67fe9bac70e45e
Reviewed-on: https://boringssl-review.googlesource.com/9131
Reviewed-by: Adam Langley <agl@google.com>
BN_mod_inverse_odd was always being used on 64-bit platforms and was being used
for all curves with an order of 450 bits or smaller (basically, everything but
P-521). We generally don't care much about minor differences in the speed of
verifying signatures using curves other than P-256 and P-384. It is better to
always use the same algorithm.
This also allows |bn_mod_inverse_general|, |bn_mod_inverse_no_branch|, and
|BN_mod_inverse| to be dropped from programs that can somehow avoid linking in
the RSA key generation and RSA CRT recovery code.
Change-Id: I79b94bff23d2b07d5e0c704f7d44538797f8c7a0
Reviewed-on: https://boringssl-review.googlesource.com/9103
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The main RSA public modulus size of concern is 2048 bits.
bn_mod_inverse_odd is already used for public moduli of 2048 bits and
smaller on 64-bit platforms, so for 64-bit it is a no-op. For 32-bit
x86, this seems to slightly decrease the speed of RSA signing, but not
by a lot, and plus we don't care about RSA signing performance much on
32-bit platforms. It's better to have all platforms using the same
algorithms.
Change-Id: I869dbfc98994e36a04a535c1fe63b14a902a4f13
Reviewed-on: https://boringssl-review.googlesource.com/9102
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is in preparation for factoring out the binary Euclidean
implementation (the one used for odd numbers that aren't too big) for
direct use from outside of crypto/bn/gcd.c. The goal is to make the
resultant |BN_mod_inverse_odd|'s signature similar to
|BN_mod_inverse_blinded|. Thus, the logic for reducing the final result
isn't factored out because that yet-to-be-created |BN_mod_inverse_odd|
will need to do it itself.
Change-Id: Iaecb79fb17d13c774c4fb6ade8742937780b0006
Reviewed-on: https://boringssl-review.googlesource.com/9100
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
OBJ_obj2txt's implementation is kind of scary. Also it casts between int
and size_t a lot. In preparation for rewriting it, add a test.
Change-Id: Iefb1d0cddff58d67e5b04ec332477aab8aa687b6
Reviewed-on: https://boringssl-review.googlesource.com/9130
Reviewed-by: Adam Langley <agl@google.com>
We're starting to get quite a lot of these ALL-CAPS.md documents.
There's been enough questions around how to properly use types like
EVP_MD_CTX that we probably should write down some of these common
rules.
Change-Id: I125f4e82efb168a071b54ff76c5af34c42ff4800
Reviewed-on: https://boringssl-review.googlesource.com/9115
Reviewed-by: Adam Langley <agl@google.com>
tls13_process_certificate can take a boolean for whether anonymous is
allowed. This does change the error on the client slightly, but I think
this is correct anyway. It is not a syntax error for the server to send
no certificates in so far as the Certificate message allows it. It's
just illegal.
Change-Id: I1af80dacf23f50aad0b1fbd884bc068a40714399
Reviewed-on: https://boringssl-review.googlesource.com/9072
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
While the sanity check isn't insane (one should arrange for sessions to
be invalidated once client auth settings change, and a sid_ctx is one
way to do it), this check lives in a poor place to enforce configuration
mistakes. To be effective, it needs to happen at the start of the
handshake, independent of the ClientHello from the peer.
But the benefit this check gives is low compared to the trouble it will
be to continually maintain this difference from OpenSSL (our own
ssl_test and bssl_shim forget to set a dummy sid_ctx). Instead, remove
it so we don't have to duplicate it across TLS 1.2 and TLS 1.3. Also so
we don't have weird failures which only manifest once a resuming client
connects.
Change-Id: Ia7f88711701afde5e26b7782c2264ce78dccc89b
Reviewed-on: https://boringssl-review.googlesource.com/9112
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We broke this to varying degrees ages ago.
This is the logic to implement the variations of rules in TLS to discard
sessions after a failed connection, where a failed connection could be
one of:
- A connection that was not cleanly shut down.
- A connection that received a fatal alert.
The first one is nonsense since close_notify does not actually work in
the real world. The second is a vaguely more plausible but...
- A stateless ticket-based server can't drop sessions anyway.
- In TLS 1.3, a client may receive many tickets over the lifetime of a
single connection. With an external session cache like ours which may,
in theory, but multithreaded, this will be a huge hassle to track.
- A client may well attempt to establish a connection and reuse the
session before we receive the fatal alert, so any application state we
hope to manage won't really work.
- An attacker can always close the connection before the fatal alert, so
whatever security policy clearing the session gave is easily
bypassable.
Implementation-wise, this has basically never worked. The
ssl_clear_bad_session logic called into SSL_CTX_remove_session which
relied on the internal session cache. (Sessions not in the internal
session cache don't get removed.) The internal session cache was only
useful for a server, where tickets prevent this mechanism from doing
anything. For a client, we since removed the internal session cache, so
nothing got removed. The API for a client also did not work as it gave
the SSL_SESSION, not the SSL, so a consumer would not know the key to
invalidate anyway.
The recent session state splitting change further broke this.
Moreover, calling into SSL_CTX_remove_session logic like that is
extremely dubious because it mutates the not_resumable flag on the
SSL_SESSION which isn't thread-safe.
Spec-wise, TLS 1.3 has downgraded the MUST to a SHOULD.
Given all that mess, just remove this code. It is no longer necessary to
call SSL_shutdown just to make session caching work.
Change-Id: Ib601937bfc5f6b40436941e1c86566906bb3165d
Reviewed-on: https://boringssl-review.googlesource.com/9091
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We will now send tickets as a server and accept them as a
client. Correctly offering and resuming them in the handshake will be
implemented in a follow-up.
Now that we're actually processing draft 14 tickets, bump the draft
version.
Change-Id: I304320a29c4ffe564fa9c00642a4ace96ff8d871
Reviewed-on: https://boringssl-review.googlesource.com/8982
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
|BN_mod_exp_mont| uses |BN_nnmod| so it seems like
|BN_mod_exp_mont_consttime| should too. Further, I created
these test vectors by doing the math by hand, and the tests
passed for |BN_mod_exp_mont| but failed for
|BN_mod_exp_mont_consttime| without this change.
Change-Id: I7cffa1375e94dd8eaee87ada78285cd67fff1bac
Reviewed-on: https://boringssl-review.googlesource.com/9032
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
None of the SSL_VERIFY_FAIL_IF_NO_PEER_CERT codepaths will ever be
reached if SSL_VERIFY_PEER is unset. If we've gotten as far as getting a
Certificate message, consider SSL_VERIFY_FAIL_IF_NO_PEER_CERT alone
significant grounds for rejecting no peer certificate.
Change-Id: I2c6be4269d65b2467b86b1fc7d76ac47ca735553
Reviewed-on: https://boringssl-review.googlesource.com/9070
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The functions appear to try to handle negative inputs, but it isn't
clear how negative inputs are supposed to work and/or if these
functions work the way they are supposed to given negative inputs.
There seems to be no legitimate reason to pass these functions negative
inputs, so just document that negative inputs shouldn't be used. More
specifically, document that the inputs should be in the range [0, n)
where |n| is the Montgomery modulus.
Change-Id: Id8732fb89616f10e673704e6fa09d78926c402d8
Reviewed-on: https://boringssl-review.googlesource.com/9033
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
SSL_set_bio is a nightmare.
In f715c42322, we noticed that, among
other problems, SSL_set_bio's actual behavior did not match how
SSL_set_rfd was calling it due to an asymmetry in the rbio/wbio
handling. This resulted in SSL_set_fd/SSL_set_rfd calls to crash. We
decided that SSL_set_rfd's believed semantics were definitive and
changed SSL_set_bio.
Upstream, in 65e2d672548e7c4bcb28f1c5c835362830b1745b, decided that
SSL_set_bio's behavior, asymmetry and all, was definitive and that the
SSL_set_rfd crash was a bug in SSL_set_rfd. Accordingly, they switched
the fd callers to use the side-specific setters, new in 1.1.0.
Align with upstream's behavior and add tests for all of SSL_set_bio's
insanity. Also export the new side-specific setters in anticipation of
wanting to be mostly compatible with OpenSSL 1.1.0.
Change-Id: Iceac9508711f79750a3cc2ded081b2bb2cbf54d8
Reviewed-on: https://boringssl-review.googlesource.com/9064
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
If two CRLs are equivalent then use the one with a later lastUpdate field:
this will result in the newest CRL available being used.
(Imported from upstream's 325da8231c8d441e6bb7f15d1a5a23ff63c842e5 and
3dc160e9be6dcaeec9345fbb61b1c427d7026103.)
Change-Id: I8c722663b979dfe08728d091697d8b8204dc265c
Reviewed-on: https://boringssl-review.googlesource.com/8947
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Negative zeros are nuts, but it will probably be a while before we've
fixed everything that can create them. Fix both to consistently print
'-0' rather than '0' so failures are easier to diagnose (BN_cmp believes
the values are different.)
Change-Id: Ic38d90601b43f66219d8f44ca085432106cf98e3
Reviewed-on: https://boringssl-review.googlesource.com/9073
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Simplify the calculation of the Montgomery constants in
|BN_MONT_CTX_set|, making the inversion constant-time. It should also
be faster by avoiding any use of the |BIGNUM| API in favor of using
only 64-bit arithmetic.
Now it's obvious how it works. /s
Change-Id: I59a1e1c3631f426fbeabd0c752e0de44bcb5fd75
Reviewed-on: https://boringssl-review.googlesource.com/9031
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
A caller using EVP_Digest* which a priori knows tighter bounds on the
hash function used (perhaps because it is always a particular hash) can
assume the function will not write more bytes than the size of the hash.
The letter of the rules before vaguely[*] allowed for more than
EVP_MD_MAX_SIZE bytes written which made for some unreasonable code in
Chromium. Officially clarify this and add tests which, when paired with
valgrind and ASan prove it.
BUG=59
[*] Not really. I think it already promised the output length will be
both the number of bytes written and the size of the hash and the size
of the hash is given by what the function promises to compute. Meh.
Change-Id: I736d526e81cca30475c90897bca896293ff30278
Reviewed-on: https://boringssl-review.googlesource.com/9066
Reviewed-by: Eric Roman <ericroman@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
In TLS 1.2, this was allowed to be empty for the weird SHA-1 fallback
logic. In TLS 1.3, not only is the fallback logic gone, but omitting
them is a syntactic error.
struct {
opaque certificate_request_context<0..2^8-1>;
SignatureScheme
supported_signature_algorithms<2..2^16-2>;
DistinguishedName certificate_authorities<0..2^16-1>;
CertificateExtension certificate_extensions<0..2^16-1>;
} CertificateRequest;
Thanks to Eric Rescorla for pointing this out.
Change-Id: I4991e59bc4647bb665aaf920ed4836191cea3a5a
Reviewed-on: https://boringssl-review.googlesource.com/9062
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We were sending decode_error, but the spec explicitly says (RFC 5246):
unsupported_extension
sent by clients that receive an extended server hello containing
an extension that they did not put in the corresponding client
hello. This message is always fatal.
Also add a test for this when it's a known but unoffered extension. We
actually end up putting these in different codepaths now due to the
custom extensions stuff.
Thanks to Eric Rescorla for pointing this out.
Change-Id: If6c8033d4cfe69ef8af5678b873b25e0dbadfc4f
Reviewed-on: https://boringssl-review.googlesource.com/9061
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
As of a recent change, test_support always included the headers, which
causes Android's new build-system to be unhappy. It doesn't want to
include headers. Split them into test_support_headers and test_support
to match the other keys.
Then fix up references:
- Android's new build system only wants the sources. Fix this.
- Chromium's GN and GYP theoretically want the sources and headers, but
we've never supplied the headers because this isn't enforced at all.
Fix this. Headers are selected based on what target the header
"belongs to".
- Bazel has no change except to sort test_support_sources.
Change-Id: I85809e70a71236b5e91d87f87bb73bc2ea289251
Reviewed-on: https://boringssl-review.googlesource.com/9044
Reviewed-by: Adam Langley <agl@google.com>
To prevent configuration/established session confusion, the handshake
session state is separated into the configured session (ssl->session)
and the newly created session (ssl->s3->new_session). Upon conclusion of
the handshake, the finalized session is stored
in (ssl->s3->established_session). During the handshake, any requests
for the session (SSL_get_session) return a non-resumable session, to
prevent resumption of a partially filled session. Sessions should only
be cached upon the completion of the full handshake, using the resulting
established_session. The semantics of accessors on the session are
maintained mid-renego.
Change-Id: I4358aecb71fce4fe14a6746c5af1416a69935078
Reviewed-on: https://boringssl-review.googlesource.com/8612
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This finishes getting rid of ssl_read_bytes! Now we have separate
entry-points for the various cases. For now, I've kept TLS handshake
consuming records partially. When we do the BIO-less API, I expect that
will need to change, since we won't have the record buffer available.
(Instead, the ssl3_read_handshake_bytes and extend_handshake_buffer pair
will look more like the DTLS side or Go and pull the entire record into
init_buf.)
This change opts to make read_app_data drive the message to completion
in anticipation of DTLS 1.3. That hasn't been specified, but
NewSessionTicket certainly will exist. Knowing that DTLS necessarily has
interleave seems something better suited for the SSL_PROTOCOL_METHOD
internals to drive.
It needs refining, but SSL_PROTOCOL_METHOD is now actually a half-decent
abstraction boundary between the higher-level protocol logic and
DTLS/TLS-specific record-layer and message dispatchy bits.
BUG=83
Change-Id: I9b4626bb8a29d9cb30174d9e6912bb420ed45aff
Reviewed-on: https://boringssl-review.googlesource.com/9001
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Yo dawg I herd you like blinding so I put inversion blinding in your
RSA blinding so you can randomly mask your random mask.
This improves upon the current situation where we pretend that
|BN_mod_inverse_no_branch| is constant-time, and it avoids the need to
exert a lot of effort to make a actually-constant-time modular
inversion function just for RSA blinding.
Note that if the random number generator weren't working correctly then
the blinding of the inversion wouldn't be very effective, but in that
case the RSA blinding itself would probably be completely busted, so
we're not really losing anything by relying on blinding to blind the
blinding.
Change-Id: I771100f0ad8ed3c24e80dd859ec22463ef2a194f
Reviewed-on: https://boringssl-review.googlesource.com/8923
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
We already forbid renego/app-data interleave. Forbid it within a
HelloRequest too because that's nonsense. No one would ever send:
[hs:HelloReq-] [app:Hello world] [hs:-uest]
Add tests for this case.
This is in preparation for our more complex TLS 1.3 post-handshake logic
which is going to go through the usual handshake reassembly logic and,
for sanity, will want to enforce this anyway.
BUG=83
Change-Id: I80eb9f3333da3d751f98f25d9469860d1993a97a
Reviewed-on: https://boringssl-review.googlesource.com/9000
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Per request from EKR. Also we have a lot of long test names, so this
seems generally a good idea.
Change-Id: Ie463f5367ec7d33005137534836005b571c8f424
Reviewed-on: https://boringssl-review.googlesource.com/9021
Reviewed-by: Adam Langley <agl@google.com>
With the previous DTLS change, the dispatch layer only cares about the
end of the handshake to know when to drop the current message. TLS 1.3
post-handshake messages will need a similar hook, so convert it to this
lower-level one.
BUG=83
Change-Id: I4c8c3ba55ba793afa065bf261a7bccac8816c348
Reviewed-on: https://boringssl-review.googlesource.com/8989
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is in preparation for switching finish_handshake to a
release_current_message hook. finish_handshake in DTLS is also
responsible for releasing any memory associated with extra messages in
the handshake.
Except that's not right and we need to make it an error anyway. Given
that the rest of the DTLS dispatch layer already strongly assumes there
is only one message in epoch one, putting the check in the fragment
processing works fine enough. Add tests for this.
This will certainly need revising when DTLS 1.3 happens (perhaps just a
version check, perhaps bringing finish_handshake back as a function that
can fail... which means we need a state just before SSL_ST_OK), but DTLS
1.3 post-handshake messages haven't really been written down, so let's
do the easy thing for now and add a test for when it gets more
interesting.
This removes the sequence number reset in the DTLS code. That reset
never did anything becase we don't and never will renego. We should make
sure DTLS 1.3 does not bring the reset back for post-handshake stuff.
(It was wrong in 1.2 too. Penultimate-flight retransmits and renego
requests are ambiguous in DTLS.)
BUG=83
Change-Id: I33d645a8550f73e74606030b9815fdac0c9fb682
Reviewed-on: https://boringssl-review.googlesource.com/8988
Reviewed-by: Adam Langley <agl@google.com>
This was only used so we knew when we had a current message to discard
and when we didn't. With init_msg being tracked better, we can use that
instead.
As part of this, switch the V2ClientHello hack to not using
reuse_message. Otherwise we have to fill in init_msg and friends in two
places.
The next change will require that we have a better handle on the "is
there a current message" boolean.
BUG=83
Change-Id: I917efacbad10806d492bbe51eda74c0779084d60
Reviewed-on: https://boringssl-review.googlesource.com/8987
Reviewed-by: Adam Langley <agl@google.com>
For TLS 1.3, we will need to process more complex post-handshake
messages. It is simplest if we use the same mechanism. In preparation,
allow ssl3_get_message to be called at any point.
Note that this stops reserving SSL3_RT_MAX_PLAIN_LENGTH in init_buf
right off the bat. Instead it will grow as-needed to accomodate the
handshake. SSL3_RT_MAX_PLAIN_LENGTH is rather larger than we probably
need to receive, particularly as a server, so this seems a good plan.
BUG=83
Change-Id: Id7f4024afc4c8a713b46b0d1625432315594350e
Reviewed-on: https://boringssl-review.googlesource.com/8985
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Right now they're RSA PRIVATE KEY or EC PRIVATE KEY which requires a bit
more effort to parse. It means the PEM header is necessary to parse
these. OpenSSL and Go automagically convert the format, but other shims
(namely NSS) may not.
Change-Id: I9fa2767dcf1fe6ceeea546390759e1c364a8f16f
Reviewed-on: https://boringssl-review.googlesource.com/9020
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Fermat's Little Theorem is already used for the custom curve implementations.
Use it, for the same reasons, for the ec_montgomery-based implementations.
I tested the performance (only) on x86-64 Windows.
Change-Id: Ibf770fd3f2d3e2cfe69f06bc12c81171624ff557
Reviewed-on: https://boringssl-review.googlesource.com/8924
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This change allows the shim to return a magic error code (89) to
indicate that it doesn't implement some of the given flags for a test.
Unimplemented tests are, by default, an error. The --allow-unimplemented
flag to the test runner causes them to be ignored.
This is done in preparation for non-BoringSSL shims.
Change-Id: Iecfd545b9cf44df5e25b719bfd06275c8149311a
Reviewed-on: https://boringssl-review.googlesource.com/8970
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Besides reducing code duplication, also move the relative location of
the check of |count|. Previously, the code was generating a random
value and then terminating the loop without using it if |count| went
to zero. Now the wasted call to |BN_rand| is not made.
Also add a note about the applicability of the special case logic for
|range| of the form |0b100...| to RSA blinding.
Change-Id: Iaa33b9529f1665ac59aefcc8b371fa32445e7578
Reviewed-on: https://boringssl-review.googlesource.com/8960
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
tag2nbyte had -1 at 18th position, but underlying ASN1_mbstring_copy
supports NumericString. tag2nbyte is also used in do_print_ex which will
not be broken by setting 1 at 18th position of tag2nbyte
(Imported from upstream's bd598cc405e981de259a07558e600b5a9ef64bd6.)
Change-Id: Ie063afcaac8a7d5046cdb385059b991b92cd6659
Reviewed-on: https://boringssl-review.googlesource.com/8946
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
The selector field could be omitted because it has a DEFAULT value.
In this case *sfld == NULL (sfld can never be NULL). This was not
noticed because this was never used in existing ASN.1 modules.
(Imported from upstream's c4210673313482edacede58d92e92c213d7a181a.)
svaldez and I stared at this for a while and we believe this change is
correct. It's also irrelevant because our only remaining ADB (ANY
DEFINED BY) table is POLICYQUALINFO which does not allow its selector to
be omitted. Also, if it did, it would be a slight change in behavior.
We'd switch from using POLICYQUALINFO's default_tt (filling in an
ASN1_ANY) to its null_tt (which doesn't exist, so error).
Change-Id: If6a929e3dafca18431775b01958d0dae1c09f3b4
Reviewed-on: https://boringssl-review.googlesource.com/8943
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This imports upstream's b62e9bf5cbbe278b7e0017c9234999dae68ee867 and
c3bc7f498815b355533d96b54b9a09e030d4130c. This is a no-op since we don't
use the XTS bits though keep the files in sync so long as we have them.
Comparing to master, we're now up-to-date on that file except for
a285992763f3961f69a8d86bf7dfff020a08cef9. (I've left that alone since
that touches lots of files and we should probably get better test
configuration before importing something scary like #undef __thumb2__.)
Change-Id: Ie0556757c954ef559e03a6d62c940d5901ca704a
Reviewed-on: https://boringssl-review.googlesource.com/8945
Reviewed-by: Adam Langley <agl@google.com>
This can be reverted, once the test runner on Android devices is
fixed.
BUG=chromium:631462
Change-Id: I1f9e38b4104f18c15bb942207c87e3b4b27472d2
Reviewed-on: https://boringssl-review.googlesource.com/8931
Reviewed-by: Andrii Shyshkalov <tandrii@google.com>
Ridiculous as it is, the protocol does not forbid packing HelloRequest
and Finished into the same record. Add a test for this case.
Change-Id: I8e1455b261f56169309070bf44d14d40a63eae50
Reviewed-on: https://boringssl-review.googlesource.com/8901
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This doesn't do anything since they're for DTLS, but we ought to satisfy
the API nonetheless. expect_flight is easy with
ssl_hs_flush_and_read_message. received_flight I think basically needs
to get sprinkled into the state machine.
Change-Id: I406c7f776ad8e5e3cbcafcac6b26a688c6d3caf1
Reviewed-on: https://boringssl-review.googlesource.com/8883
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Alas, we will need a version fallback for TLS 1.3 again.
This deprecates SSL_MODE_SEND_FALLBACK_SCSV. Rather than supplying a
boolean, have BoringSSL be aware of the real maximum version so we can
change the TLS 1.3 anti-downgrade logic to kick in, even when
max_version is set to 1.2.
The fallback version replaces the maximum version when it is set for
almost all purposes, except for downgrade protection purposes.
BUG=chromium:630165
Change-Id: I4c841dcbc6e55a282b223dfe169ac89c83c8a01f
Reviewed-on: https://boringssl-review.googlesource.com/8882
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
BN_mod_mul_montgomery has a problem where the modulus is much smaller
than one of the arguments. While bn_test.cc knows this and reduces the
inputs before testing |BN_mod_mul_montgomery|, none of the previous test
vectors actually failed without this. (Except those that passed negative
vaules.)
This change adds tests where M ≪ A and B.
Change-Id: I53b5188ea5fb5e48d0d197718ed33c644cde8477
Reviewed-on: https://boringssl-review.googlesource.com/8890
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Brian Smith <brian@briansmith.org>
Commit-Queue: David Benjamin <davidben@google.com>
The Android build system uses "blueprint" files now which are
represented by "Android.bp" instead of "Android.mk" files.
Some of the old sources.mk entries still exist, since they're still
being used by the Trusty build system.
Change-Id: I0b04100ace8599c8734bee77f656aab04c06cce9
Reviewed-on: https://boringssl-review.googlesource.com/8891
Reviewed-by: David Benjamin <davidben@google.com>
It seems risky in the context of cross-signed certificates when the
same certificate might have multiple potential issuers. Also rarely
used, since chains in OpenSSL typically only employ self-signed
trust-anchors, whose self-signatures are not checked, while untrusted
certificates are generally ephemeral.
(Imported from upstream's 0e76014e584ba78ef1d6ecb4572391ef61c4fb51.)
This is in master and not 1.0.2, but having a per-certificate signature
cache when this is a function of signature and issuer seems dubious at
best. Thanks to Viktor Dukhovni for pointing this change out to me.
(And for making the original change upstream, of course.)
Change-Id: Ie692d651726f14aeba6eaab03ac918fcaedb4eeb
Reviewed-on: https://boringssl-review.googlesource.com/8880
Reviewed-by: Adam Langley <agl@google.com>
Revert 3f3358ac15. Add documentation
clarifying the misunderstanding that lead to the mistake, and make use
of the recently-added |bn_set_words|.
Change-Id: I58814bace3db3b0b44e2dfe09c44918a4710c621
Reviewed-on: https://boringssl-review.googlesource.com/8831
Reviewed-by: Adam Langley <agl@google.com>
Our CBB patterns do not make it safe to use a CBB after any operation
failed. Suppose one does:
int add_to_cbb(CBB *cbb) {
CBB child;
return CBB_add_u8(cbb, 1) &&
CBB_add_u8_length_prefixed(cbb, &child) &&
CBB_add_u8(&child, 2) &&
/* Flush |cbb| before |child| goes out of scoped. */
CBB_flush(cbb);
}
If one of the earlier operations fails, any attempt to use |cbb| (except
CBB_cleanup) would hit a memory error. Doing this would be a bug anyway,
since the CBB would be in an undefined state anyway (wrote only half my
object), but the memory error is bad manners.
Officially document that using a CBB after failure is illegal and, to
avoid the memory error, set a poison bit on the cbb_buffer_st to prevent
all future operations. In theory we could make failure +
CBB_discard_child work, but this is not very useful and would require a
more complex CBB pattern.
Change-Id: I4303ee1c326785849ce12b5f7aa8bbde6b95d2ec
Reviewed-on: https://boringssl-review.googlesource.com/8840
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This adds three more formats to the SSLKEYLOGFILE format to support TLS
1.3:
EARLY_TRAFFIC_SECRET <client_random> <early_traffic_secret>
HANDSHAKE_TRAFFIC_SECRET <client_random> <handshake_traffic_secret>
TRAFFIC_SECRET_0 <client_random> <traffic_secret_0>
(We don't implement 0-RTT yet, so only the second two are implemented.)
Motivations:
1. If emitted the non-traffic secrets (early, handshake, and master) or
the IKMs, Wireshark needs to maintain a handshake hash. I don't
believe they need to do this today.
2. We don't store more than one non-traffic secret at a time and don't
keep traffic secrets for longer than needed. That suggests three
separate lines logged at different times rather than one line.
3. If 0-RTT isn't used, we probably won't even compute the early traffic
secret, so that further suggests three different lines.
4. If the handshake didn't get far enough to complete, we won't have an
TRAFFIC_SECRET_0 to log at all. That seems like exactly when
Wireshark would be handy, which means we want to log secrets as they
are computed.
MT from NSS has ACK'd over email that this format would be acceptable
for them, so let's go with it.
Change-Id: I4d685a1355dff4d4bd200310029d502bb6c511f9
Reviewed-on: https://boringssl-review.googlesource.com/8841
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Every flush but the last is always immediately followed by a read. Add a
combined wait mode to make things simpler. Unfortunately, both flights
we have (the state machine doesn't write the first ClientHello) are
followed immediately by a state change, which means we still need some
state in between because we must run code after write_message but before
read_message.
(This way to fix that is to get rid of the buffer BIO, change
write_message to write_flight, and allow things like init_message /
finish_message / init_message / finish_message / set_write_state /
init_message / finish_message / write_flight.)
Change-Id: Iebaa388ccbe7fcad48c1b2256e1c0d3a7c9c8a2a
Reviewed-on: https://boringssl-review.googlesource.com/8828
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This is the equivalent of FragmentAcrossChangeCipherSuite for DTLS. It
is possible for us to, while receiving pre-CCS handshake messages, to
buffer up a message with sequence number meant for a post-CCS Finished.
When we then get to the new epoch and attempt to read the Finished, we
will process the buffered Finished although it was sent with the wrong
encryption.
Move ssl_set_{read,write}_state to SSL_PROTOCOL_METHOD hooks as this is
a property of the transport. Notably, read_state may fail. In DTLS
check the handshake buffer size. We could place this check in
read_change_cipher_spec, but TLS 1.3 has no ChangeCipherSpec message, so
we will need to implement this at the cipher change point anyway. (For
now, there is only an assert on the TLS side. This will be replaced with
a proper check in TLS 1.3.)
Change-Id: Ia52b0b81e7db53e9ed2d4f6d334a1cce13e93297
Reviewed-on: https://boringssl-review.googlesource.com/8790
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This allows us to implement custom RSA-PSS-based keys, so the async TLS
1.3 tests can proceed. For now, both sign and sign_digest exist, so
downstreams only need to manage a small change atomically. We'll remove
sign_digest separately.
In doing so, fold all the *_complete hooks into a single complete hook
as no one who implemented two operations ever used different function
pointers for them.
While I'm here, I've bumped BORINGSSL_API_VERSION. I do not believe we
have any SSL_PRIVATE_KEY_METHOD versions who cannot update atomically,
but save a round-trip in case we do. It's free.
Change-Id: I7f031aabfb3343805deee429b9e244aed5d76aed
Reviewed-on: https://boringssl-review.googlesource.com/8786
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
This makes custom private keys and EVP_PKEYs symmetric again. There is
no longer a requirement that the caller pre-filter the configured
signing prefs.
Also switch EVP_PKEY_RSA to NID_rsaEncryption. These are identical, but
if some key types are to be NIDs, we should make them all NIDs.
Change-Id: I82ea41c27a3c57f4c4401ffe1ccad406783e4c64
Reviewed-on: https://boringssl-review.googlesource.com/8785
Reviewed-by: David Benjamin <davidben@google.com>
EVP_PKT_SIGN is redundant with the RSA/EC check which, in turn, is
redundant with sigalgs processing. The type need only be checked in the
pre-1.2 case which was indeed missing an else.
The client half was likewise missing an else, though it's unreachable
due to leaf cert checks.
Change-Id: Ib3550f71a2120b38eacdd671d4f1700876bcc485
Reviewed-on: https://boringssl-review.googlesource.com/8779
Reviewed-by: David Benjamin <davidben@google.com>
This is already duplicated between client and server and otherwise will
get duplicated yet again for TLS 1.3.
Change-Id: Ia8a352f9bc76fab0f88c1629d08a1da4c13d2510
Reviewed-on: https://boringssl-review.googlesource.com/8778
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 will go through very different code than everything else. Even
SSL 3.0 is somewhat special-cased now. Move the invalid signature tests
there and run at all versions.
Change-Id: Idd0ee9aac2939c0c8fd9af2ea7b4a22942121c60
Reviewed-on: https://boringssl-review.googlesource.com/8775
Reviewed-by: David Benjamin <davidben@google.com>
The TLS 1.3 CertificateRequest code advertised the signing set, not the
verify set. It also wasn't saving the peer's signature algorithm.
Change-Id: I62247d5703e30d8463c92f3d597dbeb403b355ae
Reviewed-on: https://boringssl-review.googlesource.com/8774
Reviewed-by: David Benjamin <davidben@google.com>
ServerKeyExchange and SigningHash are both very 1.2-specific names.
Replace with names that fit both 1.2 and 1.3 (and are a bit shorter).
Also fix a reference to ServerKeyExchange in sign.go.
Change-Id: I25d4ff135cc77cc545f0f9e94014244d56a9e96b
Reviewed-on: https://boringssl-review.googlesource.com/8773
Reviewed-by: David Benjamin <davidben@google.com>
deriveTrafficAEAD gets confused by the EnableAllCiphers bug. As a hack,
just return the nil cipher. We only need to progress far enough to read
the shim's error code.
Change-Id: I72d25ac463a03a0e99dd08c38a1a7daef1f94311
Reviewed-on: https://boringssl-review.googlesource.com/8763
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
RSASSA-PSS with SHA-512 is slightly too large for 1024-bit RSA. One
should not be using 1024-bit RSA, but it's common enough for tests
(including our own in runner before they were regenerated), that we
should probably do the size check and avoid unnecessary turbulence to
everyone else's test setups.
Change-Id: If0c7e401d7d05404755cba4cbff76de3bc65c138
Reviewed-on: https://boringssl-review.googlesource.com/8746
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Tested by having client and server talk to each other. This adds the
certificate_extensions field to CertificateRequest which I'd previously
missed. (We completely ignore the field, with the expectation that the C
code won't have anything useful to do with it either.)
Change-Id: I74f96acd36747d4b6a6f533535e36ea8e94d2be8
Reviewed-on: https://boringssl-review.googlesource.com/8710
Reviewed-by: David Benjamin <davidben@google.com>
For now, skip the 1.2 -> 1.1 signal since that will affect shipping
code. We may as well enable it too, but wait until things have settled
down. This implements the version in draft-14 since draft-13's isn't
backwards-compatible.
Change-Id: I46be43e6f4c5203eb4ae006d1c6a2fe7d7a949ec
Reviewed-on: https://boringssl-review.googlesource.com/8724
Reviewed-by: David Benjamin <davidben@google.com>
Now that the odd client/server split (a remnant from the original
crypto/tls code not handling signing-hash/PRF mismatches) is gone, it
can just be pulled from the config.
Change-Id: Idb46c026d6529a2afc2b43d4afedc0aa950614db
Reviewed-on: https://boringssl-review.googlesource.com/8723
Reviewed-by: David Benjamin <davidben@google.com>
This way we can test failing client auth without having to worry about
first getting through server auth.
Change-Id: Iaf996d87ac3df702a17e76c26006ca9b2a5bdd1f
Reviewed-on: https://boringssl-review.googlesource.com/8721
Reviewed-by: David Benjamin <davidben@google.com>
[Rebased and tests added by davidben.]
In doing so, regenerate the test RSA certificate to be 2048-bit RSA.
RSA-PSS with SHA-512 is actually too large for 1024-bit RSA. Also make
the sigalg test loop test versions that do and don't work which subsumes
the ecdsa_sha1 TLS 1.3 test.
For now, RSA-PKCS1 is still allowed because NSS has yet to implement
RSA-PSS and we'd like to avoid complicated interop testing.
Change-Id: I686b003ef7042ff757bdaab8d5838b7a4d6edd87
Reviewed-on: https://boringssl-review.googlesource.com/8613
Reviewed-by: David Benjamin <davidben@google.com>
Implement in both C and Go. To test this, route config into all the
sign.go functions so we can expose bugs to skip the check.
Unfortunately, custom private keys are going to be a little weird since
we can't check their curve type. We may need to muse on what to do here.
Perhaps the key type bit should return an enum that includes the curve?
It's weird because, going forward, hopefully all new key types have
exactly one kind of signature so key type == sig alg == sig alg prefs.
Change-Id: I1f487ec143512ead931e3392e8be2a3172abe3d2
Reviewed-on: https://boringssl-review.googlesource.com/8701
Reviewed-by: David Benjamin <davidben@google.com>
ssl_verify_* already ought to be checking this, so there's only a need
to check against the configured preferences.
Change-Id: I79bc771969c57f953278e622084641e6e20108e3
Reviewed-on: https://boringssl-review.googlesource.com/8698
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 also forbids signing SHA-1 digests, but this will be done as a
consequence of forbidding PKCS#1 in 1.3 altogether (rsa_sign_sha1) and
requiring a curve match in ECDSA (ecdsa_sha1).
Change-Id: I665971139ccef9e270fd5796c5e6a814a8f663b1
Reviewed-on: https://boringssl-review.googlesource.com/8696
Reviewed-by: David Benjamin <davidben@google.com>
This is a lot more verbose and looks the same between RSA and ECDSA for
now, but it gives us room to implement the various algorithm-specific
checks. ECDSA algorithms must match the curve, PKCS#1 is forbidden in
TLS 1.3, etc.
Change-Id: I348cfae664d7b08195a2ab1190820b410e74c5e9
Reviewed-on: https://boringssl-review.googlesource.com/8694
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This allows us to specify client-only and unused callbacks without
needing to include empty wrappers, and allows us to continue using the
default ext_*_parse_clienthello function for early parsing.
Change-Id: I4104e22a0a6dd6b02f9a5605e9866f6b3de6a097
Reviewed-on: https://boringssl-review.googlesource.com/8743
Reviewed-by: David Benjamin <davidben@google.com>
Upstream have added |EVP_PKEY_up_ref|, but their version returns an int.
Having this function with a different signature like that is dangerous
so this change aligns BoringSSL with upstream. Users of this function in
Chromium and internally should already have been updated.
Change-Id: I0a7aeaf1a1ca3b0f0c635e2ee3826aa100b18157
Reviewed-on: https://boringssl-review.googlesource.com/8736
Reviewed-by: David Benjamin <davidben@google.com>
Rather than blindly select SHA-1 if we can't find a matching one, act as
if the peer advertised rsa_pkcs1_sha1 and ecdsa_sha1. This means that we
will fail the handshake if no common algorithm may be found.
This is done in preparation for removing the SHA-1 default in TLS 1.3.
Change-Id: I3584947909d3d6988b940f9404044cace265b20d
Reviewed-on: https://boringssl-review.googlesource.com/8695
Reviewed-by: David Benjamin <davidben@google.com>
Instead, in SSL_set_private_key_digest_prefs, convert the NID list to a
sigalgs list. We'll need to add a new API later when custom key callers
are ready to start advertising RSA-PSS.
This removes all callers of tls12_get_hash except inside the signing and
verifying functions.
Change-Id: Ie534f3b736c6ac6ebeb0d7770d489f72e3321865
Reviewed-on: https://boringssl-review.googlesource.com/8693
Reviewed-by: David Benjamin <davidben@google.com>
Instead have ssl3_cert_verify_hash output the hash, since it already
knows it. Also add a missing EVP_PKEY_CTX_set_signature_md call on the
client half. (Although, the call isn't actually necessary.)
Also remove now unnecessary static assert. Since EVP_md5_sha1 is an
EVP_MD itself, EVP_MAX_MD_SIZE is required to fit it already.
Change-Id: Ief74fdbdf08e9f124679475bafba2f6f1d8fc687
Reviewed-on: https://boringssl-review.googlesource.com/8692
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Bazel sees BUILD files are markers for different packages. So by having
a file named “BUILD” in the source tree, Bazel thinks that there are
several packages involved.
This change renames it to BUILD.toplevel to avoid this.
Change-Id: Ia76167334cd52f72ff25ecb08533c30e5e423ab8
This reverts commits:
8d79ed674019fdcb52348d79ed6740
Because WebRTC (at least) includes our headers in an extern "C" block,
which precludes having any C++ in them.
Change-Id: Ia849f43795a40034cbd45b22ea680b51aab28b2d
MSVC doesn't define __cplusplus as 201103 to indicate C++11 support, so
just assume that the compiler supports C++11 if _MSC_VER is defined.
Change-Id: I27f6eeefe6e8dc522470f36fab76ab36d85eebac
Reviewed-on: https://boringssl-review.googlesource.com/8734
Reviewed-by: David Benjamin <davidben@google.com>
Last month's canary for loop did not die in the coal mine of decrepit
toolchains. Make a note of this in STYLE.md so we know to start breeding
more of them. We can indeed declare index variables like it's 1999.
I haven't bothered to convert all of our for loops because that will be
tedious, but we can do it as we touch the code. Or if someone feels
really really bored.
BUG=47
Change-Id: Ib76c0767c1b509e825eac66f8c2e3ee2134e2493
Reviewed-on: https://boringssl-review.googlesource.com/8740
Reviewed-by: Adam Langley <agl@google.com>
This change scatters the contents of the two scoped_types.h files into
the headers for each of the areas of the code. The types are now in the
|bssl| namespace.
Change-Id: I802b8de68fba4786b6a0ac1bacd11d81d5842423
Reviewed-on: https://boringssl-review.googlesource.com/8731
Reviewed-by: Adam Langley <agl@google.com>
We currently have the situation where the |tool| and |bssl_shim| code
includes scoped_types.h from crypto/test and ssl/test. That's weird and
shouldn't happen. Also, our C++ consumers might quite like to have
access to the scoped types.
Thus this change moves some of the template code to base.h and puts it
all in a |bssl| namespace to prepare for scattering these types into
their respective headers. In order that all the existing test code be
able to access these types, it's all moved into the same namespace.
Change-Id: I3207e29474dc5fcc344ace43119df26dae04eabb
Reviewed-on: https://boringssl-review.googlesource.com/8730
Reviewed-by: David Benjamin <davidben@google.com>
It still places the current message all over the place, but remove the
bizarre init_num/error/ok split. Now callers get the message length out
of init_num, which mirrors init_msg. Also fix some signedness.
Change-Id: Ic2e97b6b99e234926504ff217b8aedae85ba6596
Reviewed-on: https://boringssl-review.googlesource.com/8690
Reviewed-by: David Benjamin <davidben@google.com>
This machinery is so different between TLS and DTLS that there is no
sense in having them share structures. This switches us to maintaining
the full reassembled message in hm_fragment and get_message just lets
the caller read out of that when ready.
This removes the last direct handshake dependency on init_buf,
ssl3_hash_message.
Change-Id: I4eccfb6e6021116255daead5359a0aa3f4d5be7b
Reviewed-on: https://boringssl-review.googlesource.com/8667
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
We usually put main at the end. There's now nothing interesting in the
function, so avoid having to declare every test at the top.
Change-Id: Iac469f41f0fb7d1f58d12dfbf651bf0d39f073d0
Reviewed-on: https://boringssl-review.googlesource.com/8712
Reviewed-by: David Benjamin <davidben@google.com>
../tool/transport_common.cc:429:14: error: ‘code_250’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
(I don't believe it can actually happen though.)
Change-Id: I78d19ad42ed4c05404f1d8d3e8f254ede3244b8d
This change adds support for doing an SMTP STARTTLS dance before a TLS
handshake when using the tool. This is useful for poking at SMTP
servers.
Change-Id: I04cd60d02d3377cce83e412d62e3257235a19116
Reviewed-on: https://boringssl-review.googlesource.com/8662
Reviewed-by: David Benjamin <davidben@google.com>
Since Bazel doesn't have a shared vs static concept that's exposed to
the build rules (as far as I know) symbol visibility would mean that the
symbols might be exposed when building a larger library. That could be
fixed with a linker script, but this change appears to be slightly more
useful for our consumers.
(Also, if we're going to set -fvisibility=hidden, we should also have set
the defines needed to include the visibility annotations.)
Change-Id: Ic7d64a553da48cfb9cf5460d26254de7e105fd65
Reviewed-on: https://boringssl-review.googlesource.com/8664
Reviewed-by: Adam Langley <agl@google.com>
Both DTLS and TLS still use it, but that will change in the following
commit. This also removes the handshake's knowledge of the
dtls_clear_incoming_messages function.
(It's possible we'll want to get rid of begin_handshake in favor of
allocating it lazily depending on how TLS 1.3 post-handshake messages
end up working out. But this should work for now.)
Change-Id: I0f512788bbc330ab2c947890939c73e0a1aca18b
Reviewed-on: https://boringssl-review.googlesource.com/8666
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
These are where the DTLS- and TLS-specific transport layer hooks will be
defined. Later we can probably move much of the implementations of these
hooks into these files so those functions can be static.
While I'm here, fix up the naming of some constants.
Change-Id: I1009dd9fdc3cc4fd49fbff0802f6289931abec3d
Reviewed-on: https://boringssl-review.googlesource.com/8665
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper, revised by davidben.]
When we add this in the real code, this will want ample tests and hooks
for bugs, but get the core logic in to start with.
Change-Id: I86cf0b6416c9077dbb6471a1802ae984b8fa6c72
Reviewed-on: https://boringssl-review.googlesource.com/8598
Reviewed-by: David Benjamin <davidben@google.com>
V2ClientHello is going to be ugly wherever we do it, but this hides it
behind the transport method table. It removes a place where the
handshake state machine reaches into ssl3_get_message's internal state.
ssl3_get_message will now silently translate V2ClientHellos into true
ClientHellos and manage the handshake hash appropriately.
Now the only accesses of init_buf from the handshake state machines are
to create and destroy the buffer.
Change-Id: I81467a038f6ac472a465eec7486a443fe50a98e1
Reviewed-on: https://boringssl-review.googlesource.com/8641
Reviewed-by: Adam Langley <agl@google.com>
As with the client, the logic around extensions in 1.3 will want to be
tweaked. readClientHello will probably shrink a bit. (We could probably
stuff 1.3 into the existing parameter negotiation logic, but I expect
it'll get a bit unwieldy once HelloRetryRequest, PSK resumption, and
0-RTT get in there, so I think it's best we leave them separate.)
Change-Id: Id8c323a06a1def6857a59accd9f87fb0b088385a
Reviewed-on: https://boringssl-review.googlesource.com/8596
Reviewed-by: David Benjamin <davidben@google.com>
While the random connection property extensions like ALPN and SRTP
remain largely unchanged in TLS 1.3 (but for interaction with 0-RTT),
authentication-related extensions change significantly and need
dedicated logic.
Change-Id: I2588935c2563a22e9879fb81478b8df5168b43de
Reviewed-on: https://boringssl-review.googlesource.com/8602
Reviewed-by: David Benjamin <davidben@google.com>
Test with and without PackHandshakeFlight enabled to cover when the
early post-CCS fragment will get packed into one of the pre-CCS
handshake records. Also test the resumption cases too to cover more
state transitions.
The various CCS-related tests (since CCS is kind of a mess) are pulled
into their own group.
Change-Id: I6384f2fb28d9885cd2b06d59e765e080e3822d8a
Reviewed-on: https://boringssl-review.googlesource.com/8661
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper and then revised by davidben.]
Most features are missing, but it works for a start. To avoid breaking
the fake TLS 1.3 tests while the C code is still not landed, all the
logic is gated on a global boolean. When the C code gets in, we'll
set it to true and remove this boolean.
Change-Id: I6b3a369890864c26203fc9cda37c8250024ce91b
Reviewed-on: https://boringssl-review.googlesource.com/8601
Reviewed-by: David Benjamin <davidben@google.com>
I'm surprised we'd never tested this. In addition to splitting handshake
records up, one may pack multiple handshakes into a single record, as
they fit. Generalize the DTLS handshake flush hook to do this in TLS as
well.
Change-Id: Ia546d18c7c56ba45e50f489c5b53e1fcd6404f51
Reviewed-on: https://boringssl-review.googlesource.com/8650
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.2 and 1.3 will process more-or-less the same server extensions,
but at slightly different points in the handshake. In preparation for
that, split this out into its own function.
Change-Id: I5494dee4724295794dfd13c5e9f9f83eade6b20a
Reviewed-on: https://boringssl-review.googlesource.com/8586
Reviewed-by: Adam Langley <agl@google.com>
[Originally written by nharper, tweaked by davidben.]
For now, ignore them completely.
Change-Id: I28602f219d210a857aa80d6e735557b8d2d1c590
Reviewed-on: https://boringssl-review.googlesource.com/8585
Reviewed-by: Adam Langley <agl@google.com>
Rather than have a separate codepath, just skip the message_complete
logic and parse what's in the buffer. This also cuts down on one input
to setting up a reuse_message; message_type is now only written to in
the get_message implementation.
Change-Id: I96689b5957a3f2548af9099ec4e53cabacdc395a
Reviewed-on: https://boringssl-review.googlesource.com/8640
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We now have a branch that contains the source code in a form suitable
for using with Bazel. This can be easier for projects that are already
using Bazel to deal with.
Change-Id: Iaaddb2ee50b367114ff2de88a526bf4bdb6ad7ab
Reviewed-on: https://boringssl-review.googlesource.com/8651
Reviewed-by: David Benjamin <davidben@google.com>
Amazingly, this function actually has (not crypto-related) callers, despite
being pretty much useless for cryptography.
BUG=31
Change-Id: I440827380995695c7a15bbf2220a05ffb28d9335
Reviewed-on: https://boringssl-review.googlesource.com/8594
Reviewed-by: David Benjamin <davidben@google.com>
These were generated by running test_mod_exp_mont5 10 times. The values with
Montgomery representation 1 were generated separately so the test file could
preserve the comment. (Though, at 10,000 lines, no one's going to find it...)
BUG=31
Change-Id: I8e9d4d6d7b5f7d283bd259df10a1dbdc90b888cf
Reviewed-on: https://boringssl-review.googlesource.com/8611
Reviewed-by: David Benjamin <davidben@google.com>
Honestly, with this size of number, they're pretty bad test vectors.
test_mod_exp_mont5 will be imported in the next commit which should help.
This was done by taking test_mod_exp's generation, running it a few times
(since otherwise the modulus is always the same). I also ran it a few times
with the odd constraint removed since BN_mod_exp is supposed to support it,
even if it's not actually useful.
BUG=31
Change-Id: Id53953f0544123a5ea71efac534946055dd5aabc
Reviewed-on: https://boringssl-review.googlesource.com/8610
Reviewed-by: David Benjamin <davidben@google.com>
That one needs reduced inputs and the other ought to be also tested against
unreduced ones is a bit annoying. But the previous commit made sure BN_nnmod
has tests, and test_mont could stand to inherit test_mod_mul's test data (it
only had five tests originally!), so I merged them.
BUG=31
Change-Id: I1eb585b14f85f0ea01ee81537a01e07ced9f5d9a
Reviewed-on: https://boringssl-review.googlesource.com/8608
Reviewed-by: David Benjamin <davidben@google.com>
In preparation for converting test_mont and test_mod_mul to test vectors, make
test_mont less silly. We can certainly get away with doing more than five
tests. Also generate |a| and |b| anew each time. Otherwise the first BN_nmod is
destructive.
Change-Id: I944007ed7b6013a16d972cb7290ab9992c9360ce
Reviewed-on: https://boringssl-review.googlesource.com/8605
Reviewed-by: David Benjamin <davidben@google.com>
When we have *-with-bazel branches this BUILD file will be copied to the
top-level for consumers that want to use Bazel.
From empirical testing, x86-64 on Linux is spelt “k8” and x86-64 on
macOS is spelt “darwin”. I've not tried to enable assembly for any other
cases yet.
Change-Id: Ic6cb739565f145db20756fb57c0d087227fd9e18
Reviewed-on: https://boringssl-review.googlesource.com/8571
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.3 will need to call it under different circumstances. We will also
wish to test TLS 1.3 post-handshake auth, so this function must work
without being passed handshake state.
In doing so, implement matching based on signature algorithms as 1.3
does away with the certificate type list.
Change-Id: Ibdee44bbbb589686fcbcd7412432100279bfac63
Reviewed-on: https://boringssl-review.googlesource.com/8589
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper and then tweaked by davidben.]
TLS 1.3 tweaks them slightly, so being able to write them in one pass
rather than two will be somewhat more convenient.
Change-Id: Ib7e2d63e28cbae025c840bbb34e9e9c295b44dc6
Reviewed-on: https://boringssl-review.googlesource.com/8588
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper, tweaked by davidben.]
In TLS 1.3, every extension the server previously sent gets moved to a
separate EncryptedExtensions message. To be able to share code between
the two, parse those extensions separately. For now, the handshake reads
from serverHello.extensions.foo, though later much of the extensions
logic will probably handle serverExtensions independent of whether it
resides in ServerHello or EncryptedExtensions.
Change-Id: I07aaae6df3ef6fbac49e64661d14078d0dbeafb0
Reviewed-on: https://boringssl-review.googlesource.com/8584
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper and tweaked by davidben.]
This will end up being split in two with most of the ServerHello
extensions being serializable in both ServerHello and
EncryptedExtensions depending on version.
Change-Id: Ida5876d55fbafb982bc2e5fdaf82872e733d6536
Reviewed-on: https://boringssl-review.googlesource.com/8580
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper and then slightly tweaked by davidben.]
Between the new deeply nested extension (KeyShare) and most of
ServerHello extensions moving to a separate message, this is probably
long overdue.
Change-Id: Ia86e30f56b597471bb7e27d726a9ec92687b4d10
Reviewed-on: https://boringssl-review.googlesource.com/8569
Reviewed-by: David Benjamin <davidben@google.com>
To match the Go side. That message will never be used for anything else,
so there's not much need to give it such a long name.
Change-Id: I3396c9d513d02d873e59cd8e81ee64005c5c706c
Reviewed-on: https://boringssl-review.googlesource.com/8620
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 defines its own EncryptedExtensions message. The existing one is
for Channel ID which probably should not have tried to generalize
itself.
Change-Id: I4f48bece98510eb54e64fbf3df6c2a7332bc0261
Reviewed-on: https://boringssl-review.googlesource.com/8566
Reviewed-by: David Benjamin <davidben@google.com>
Right now I believe we are testing against DTLS 1.3 ClientHellos. Fix
this in preparation for making VersionTLS13 go elsewhere in the Go code.
Unfortunately, I made the mistake of mapping DTLS 1.0 to TLS 1.0 rather
than 1.1 in Go. This does mean the names of the tests naturally work out
correctly, but we have to deal with this awkward DTLS-1.1-shaped hole in
our logic.
Change-Id: I8715582ed90acc1f08197831cae6de8d5442d028
Reviewed-on: https://boringssl-review.googlesource.com/8562
Reviewed-by: David Benjamin <davidben@google.com>
In preparation for TLS 1.3 using its actual handshake, switch most tests
to TLS 1.3 and add liberal TODOs for the tests which will need TLS 1.3
variants.
In doing so, move a few tests from basic tests into one of the groups.
Also rename BadECDSACurve to BadECDHECurve (it was never ECDSA) and add
a test to make sure FALLBACK_SCSV is correctly sensitive to the maximum
version.
Change-Id: Ifca6cf8f7a48d6f069483c0aab192ae691b1dd8e
Reviewed-on: https://boringssl-review.googlesource.com/8560
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 defines a new SignatureScheme uint16 enum that is backwards
compatible on the wire with TLS1.2's SignatureAndHashAlgorithm. This
change updates the go testing code to use a single signatureAlgorithm
enum (instead of 2 separate signature and hash enums) in preparation for
TLS 1.3. It also unifies all the signing around this new scheme,
effectively backporting the change to TLS 1.2.
For now, it does not distinguish signature algorithms between 1.2 and
1.3 (RSA-PSS instead of RSA-PKCS1, ECDSA must match curve types). When
the C code is ready make a similar change, the Go code will be updated
to match.
[Originally written by nharper, tweaked significantly by davidben.]
Change-Id: If9a315c4670755089ac061e4ec254ef3457a00de
Reviewed-on: https://boringssl-review.googlesource.com/8450
Reviewed-by: David Benjamin <davidben@google.com>
Also, update the documentation about aliasing for |BN_usub|. It might
be better to find a way to factor out the shared logic between the
tests of these functions and the tests of |BN_add| and |BN_usub|, but
doing so would end up up creating a lot of parameters due to the many
distinct strings used in the messages.
Change-Id: Ic9d714858212fc92aa6bbcc3959576fe6bbf58c3
Reviewed-on: https://boringssl-review.googlesource.com/8593
Reviewed-by: David Benjamin <davidben@google.com>
Upstream added this in a18a31e49d266. The various *_up_ref functions
return a variety of types, but this one returns int because upstream
appears to be trying to unify around that. (See upstream's c5ebfcab713.)
Change-Id: I7e1cfe78c3a32f5a85b1b3c14428bd91548aba6d
Reviewed-on: https://boringssl-review.googlesource.com/8581
Reviewed-by: Adam Langley <alangley@gmail.com>
|BN_mod_exp_mont| should be tested the same way as the other variants,
especially since it is exported.
Change-Id: I8c05725289c0ebcce7aba7e666915c4c1a841c2b
Reviewed-on: https://boringssl-review.googlesource.com/8590
Reviewed-by: David Benjamin <davidben@google.com>
In order to delay the digest of the handshake transcript and unify
around message-based signing callbacks, a copy of the transcript is kept
around until we are sure there is no certificate authentication.
This removes support for SSL_PRIVATE_KEY_METHOD as a client in SSL 3.0.
Change-Id: If8999a19ca021b4ff439319ab91e2cd2103caa64
Reviewed-on: https://boringssl-review.googlesource.com/8561
Reviewed-by: David Benjamin <davidben@google.com>
I'd meant to change the other -latest to -13 when I merged this, but we
may as well group the two together anyway. Also remove ticket_age as
that's likely to go away in PR#503.
Change-Id: Ibb2f447e344d0b13c937291de69ace37ac9a5e8d
Reviewed-on: https://boringssl-review.googlesource.com/8567
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This replaces the old key_exchange_info APIs and does not require the
caller be aware of the mess around SSL_SESSION management. They
currently have the same bugs around renegotiation as before, but later
work to fix up SSL_SESSION tracking will fix their internals.
For consistency with the existing functions, I've kept the public API at
'curve' rather than 'group' for now. I think it's probably better to
have only one name with a single explanation in the section header
rather than half and half. (I also wouldn't be surprised if the IETF
ends up renaming 'group' again to 'key exchange' at some point. We'll
see what happens.)
Change-Id: I8e90a503bc4045d12f30835c86de64ef9f2d07c8
Reviewed-on: https://boringssl-review.googlesource.com/8565
Reviewed-by: Adam Langley <agl@google.com>
We ended up switching this from a curve to a cipher suite, so the group
ID isn't used. This is in preparation for adding an API for the curve
ID, at which point leaving the protocol constants undefined seems
somewhat bad manners.
Change-Id: Icb8bf4594879dbbc24177551868ecfe89bc2f8c3
Reviewed-on: https://boringssl-review.googlesource.com/8563
Reviewed-by: Adam Langley <agl@google.com>
This isn't filled in on the client and Chromium no longer uses it for
plain RSA. It's redundant with existing APIs. This is part of removing
the need for callers to call SSL_get_session where possible.
SSL_get_session is ambiguous when it comes to renego. Some code wants
the current connection state which should not include the pending
handshake and some code wants the handshake scratch space which should.
Renego doesn't exist in TLS 1.3, but TLS 1.3 makes NewSessionTicket a
post-handshake message, so SSL_get_session is somewhat silly of an API
there too.
SSL_SESSION_get_key_exchange_info is a BoringSSL-only API, so we can
freely change it and replace it with APIs keyed on SSL. In doing so, I
think it is better to provide APIs like "SSL_get_dhe_group_size" and
"SSL_get_curve_id" rather than make the caller do the multi-step
SSL_get_current_cipher / SSL_CIPHER_is_ECDHE dance. To that end, RSA
key_exchange_info is pointless as it can already be determined from the
peer certificate.
Change-Id: Ie90523083d8649701c17934b7be0383502a0caa3
Reviewed-on: https://boringssl-review.googlesource.com/8564
Reviewed-by: Adam Langley <agl@google.com>
QUIC, in particular, will set min_version to TLS 1.3 and has no need to send
any legacy ciphers.
Note this requires changing some test expectations. Removing all of TLS 1.1 and
below's ciphers in TLS 1.3 has consequences for how a tripped minimum version
reads.
BUG=66
Change-Id: I695440ae78b95d9c7b5b921c3cb2eb43ea4cc50f
Reviewed-on: https://boringssl-review.googlesource.com/8514
Reviewed-by: David Benjamin <davidben@google.com>
OpenSSL's SSL_OP_NO_* flags allow discontinuous version ranges. This is a
nuisance for two reasons. First it makes it unnecessarily difficult to answer
"are any versions below TLS 1.3 enabled?". Second the protocol does not allow
discontinuous version ranges on the client anyway. OpenSSL instead picks the
first continous range of enabled versions on the client, but not the server.
This is bizarrely inconsistent. It also doesn't quite do this as the
ClientHello sending logic does this, but not the ServerHello processing logic.
So we actually break some invariants slightly. The logic is also cumbersome in
DTLS which kindly inverts the comparison logic.
First, switch min_version/max_version's storage to normalized versions. Next
replace all the ad-hoc version-related functions with a single
ssl_get_version_range function. Client and server now consistently pick a
contiguous range of versions. Note this is a slight behavior change for
servers. Version-range-sensitive logic is rewritten to use this new function.
BUG=66
Change-Id: Iad0d64f2b7a917603fc7da54c9fc6656c5fbdb24
Reviewed-on: https://boringssl-review.googlesource.com/8513
Reviewed-by: David Benjamin <davidben@google.com>
Bazel wants to know the header files of the targets that it builds too,
so output that in the generated BUILD files.
Change-Id: I5b90908342fc8819ae6bc7ff91eb6f5afc0ddf54
Reviewed-on: https://boringssl-review.googlesource.com/8570
Reviewed-by: David Benjamin <davidben@google.com>
The signing logic itself still depends on pre-hashed messages and will be fixed
in later commits.
Change-Id: I901b0d99917c311653d44efa34a044bbb9f11e57
Reviewed-on: https://boringssl-review.googlesource.com/8545
Reviewed-by: David Benjamin <davidben@google.com>
As part of the SignatureAlgorithm change in the TLS 1.3 specification,
the existing signature/hash combinations are replaced with a combined
signature algorithm identifier. This change maintains the existing APIs
while fixing the internal representations. The signing code currently
still treats the SignatureAlgorithm as a decomposed value, which will be
fixed as part of a separate CL.
Change-Id: I0cd1660d74ad9bcf55ce5da4449bf2922660be36
Reviewed-on: https://boringssl-review.googlesource.com/8480
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
These can all share one test type. Note test_div had a separate
division by zero test which had to be extracted.
BUG=31
Change-Id: I1de0220fba78cd7f82a5dc96adb34b79c07929e9
Reviewed-on: https://boringssl-review.googlesource.com/8527
Reviewed-by: Adam Langley <agl@google.com>
crypto/bn/bn_test.cc:404:44: error: ‘n’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
Change-Id: Id590dfee4b9ae1a4fbd0965e133310dac0d06ed3
Two of these were even regression tests for a past bug. These are also
moved to the file, now with the amazing innovation that we *actually
check the regression test gave the right answer*.
BUG=31
Change-Id: I8097336ad39a2bb5c0af07dd8e1e34723b68d182
Reviewed-on: https://boringssl-review.googlesource.com/8525
Reviewed-by: Adam Langley <agl@google.com>
This adds tests for:
for i = 0 to 199:
Sum: 2^i
A: 2^i - 1
B: 1
for i = 0 to 199:
Sum: 2^200
A: 2^200 - 2^i
B: 2^i
I don't believe any of the existing tests actually stressed this,
amazingly enough.
Change-Id: I5edab6327bad45fc21c62bd47f4169f8bb745ff7
Reviewed-on: https://boringssl-review.googlesource.com/8523
Reviewed-by: Adam Langley <agl@google.com>
This took some finesse. I merged the lshift1 and rshift1 test vectors as
one counted down and the other up. The rshift1 vectors were all rounded
to even numbers, with the test handling the odd case. Finally, each run
only tested positive or negative (it wasn't re-randomized), so I added
both positive and negative versions of each test vector.
BUG=31
Change-Id: Ic7de45ab797074547c44c2e4ff8089b1feec5d57
Reviewed-on: https://boringssl-review.googlesource.com/8522
Reviewed-by: Adam Langley <agl@google.com>
buffer buffer buffer buffer buffer. At some point, words lose their meaning if
they're used too many times. Notably, the DTLS code can't decide whether a
"buffered message" is an incoming message to be reassembled or an outgoing
message to be (re)transmitted.
Change-Id: Ibdde5c00abb062c603d21be97aff49e1c422c755
Reviewed-on: https://boringssl-review.googlesource.com/8500
Reviewed-by: Adam Langley <agl@google.com>
This allows us to use CBB for all handshake messages. Now, SSL_PROTOCOL_METHOD
is responsible for implementing a trio of CBB-related hooks to assemble
handshake messages.
Change-Id: I144d3cac4f05b6637bf45d3f838673fc5c854405
Reviewed-on: https://boringssl-review.googlesource.com/8440
Reviewed-by: Adam Langley <agl@google.com>
Test vectors taken from one run of bc_test with the -bc flag, along with
a handful of manual test vectors around numbers close to zero. (The
output was compared against bc to make sure it was correct.)
BUG=31
Change-Id: I9e9263ece64a877c8497716cd4713b4c3e44248c
Reviewed-on: https://boringssl-review.googlesource.com/8521
Reviewed-by: Adam Langley <agl@google.com>
Upstream added new instructions in
f4d456408d9d7bca31f34765d1a05fbd9fa55826 and
4e3d2866b6e8e7a700ea22e05840a093bfd7a4b1.
Change-Id: I835650426a0dffca2d8686d64aef99097a4bd186
Reviewed-on: https://boringssl-review.googlesource.com/8520
Reviewed-by: Adam Langley <agl@google.com>
(Imported from upstream's 67b8bf4d849a7c40d0226de4ebe2590c4cc7c1f7.)
Verified a no-op in generate_build_files.py.
Change-Id: I09648893ab5c795f3934da0b2ecbc5fd7eb068d5
Reviewed-on: https://boringssl-review.googlesource.com/8519
Reviewed-by: Adam Langley <agl@google.com>
Depending on architecture, perlasm differed on which one or both of:
perl foo.pl flavor output.S
perl foo.pl flavor > output.S
Upstream has now unified on the first form after making a number of
changes to their files (the second does not even work for their x86
files anymore). Sync those portions of our perlasm scripts with upstream
and update CMakeLists.txt and generate_build_files.py per the new
convention.
This imports various commits like this one:
184bc45f683c76531d7e065b6553ca9086564576 (this was done by taking a
diff, so I don't have the full list)
Confirmed that generate_build_files.py sees no change.
BUG=14
Change-Id: Id2fb5b8bc2a7369d077221b5df9a6947d41f50d2
Reviewed-on: https://boringssl-review.googlesource.com/8518
Reviewed-by: Adam Langley <agl@google.com>
We're not using the masm output (and upstream does not even support it).
Reduce unnecessary diff from upstream.
Change-Id: Ic0b0f804bd7ec1429b3b1f40746297b57dcfcef6
Reviewed-on: https://boringssl-review.googlesource.com/8517
Reviewed-by: Adam Langley <agl@google.com>
OBJ_NAME in OpenSSL has an 'alias' field which some code consumes. We never
report anything OpenSSL considers an alias, so just leave it zero. It also has
a 'data' field which, confusingly, is a pointer to the EVP_CIPHER or EVP_MD
despite being a char pointer.
See calls to and implementation of OBJ_NAME_add in OpenSSL for comparison.
Change-Id: Ifc5c70424569db8783deb2fda7736c1954b5dd3a
Reviewed-on: https://boringssl-review.googlesource.com/8515
Reviewed-by: Adam Langley <agl@google.com>
It has size 7. There's no need for a priority queue structure, especially one
that's O(N^2) anyway.
Change-Id: I7609794aac1925c9bbf3015744cae266dcb79bff
Reviewed-on: https://boringssl-review.googlesource.com/8437
Reviewed-by: Adam Langley <agl@google.com>
The pair was a remnant of some weird statefulness and also ChangeCipherSpec
having a "sequence number" to make the pqueue turn into an array.
Change-Id: Iffd82594314df43934073bd141faee0fc167ed5f
Reviewed-on: https://boringssl-review.googlesource.com/8436
Reviewed-by: Adam Langley <agl@google.com>
Now that retransitting is a lot less stateful, a lot of surrounding code can
lose statefulness too. Rather than this overcomplicated pqueue structure,
hardcode that a handshake flight is capped at 7 messages (actually, DTLS can
only get up to 6 because we don't support NPN or Channel ID in DTLS) and used a
fixed size array.
This also resolves several TODOs.
Change-Id: I2b54c3441577a75ad5ca411d872b807d69aa08eb
Reviewed-on: https://boringssl-review.googlesource.com/8435
Reviewed-by: Adam Langley <agl@google.com>
Now dtls1_do_handshake_write takes in a serialized form of the full message and
writes it. It's a little weird to serialize and deserialize the header a bunch,
but msg_callback requires that we keep the full one around in memory anyway.
Between that and the handshake hash definition, DTLS really wants messages to
mean the assembled header, redundancies and all, so we'll just put together
messages that way.
This also fixes a bug where ssl_do_msg_callback would get passed in garbage
where the header was supposed to be. The buffered messages get sampled before
writing the fragment rather than after.
Change-Id: I4e3b8ce4aab4c4ab4502d5428dfb8f3f729c6ef9
Reviewed-on: https://boringssl-review.googlesource.com/8433
Reviewed-by: Adam Langley <agl@google.com>
It is an explicit copy of something, but it's a lot easier to reason about than
the init_buf/init_num gynmastics we were previously doing. This is along the
way to getting init_buf out of here.
Change-Id: Ia1819ba9db60ef6db09dd60d208dbc95fcfb4bd2
Reviewed-on: https://boringssl-review.googlesource.com/8432
Reviewed-by: Adam Langley <agl@google.com>
The only thing we've written before the signature is the hash. We can just
choose it anew. This is along the way to getting init_buf out of the handshake
output side. (init_buf is kind of a mess since it doesn't integrate nicely with
a top-level CBB. Some of the logic hasn't been converted to CBB because they're
interspersed with a BUF_MEM_grow.)
Change-Id: I693e834b5a03849bebb04f3f6b81f81fb04e2530
Reviewed-on: https://boringssl-review.googlesource.com/8431
Reviewed-by: Adam Langley <agl@google.com>
It doesn't really convey anything useful. Leave ssl_get_message alone for now
since it's called everywhere in the handshake and I'm about to tweak it
further.
Change-Id: I6f3a74c170e818f624be8fbe5cf6b796353406df
Reviewed-on: https://boringssl-review.googlesource.com/8430
Reviewed-by: Adam Langley <agl@google.com>
Saves us some mess if they're never zero. This also fixes a bug in
ssl3_get_max_client_version where it didn't account for all versions being
disabled properly.
Change-Id: I4c95ff57cf8953cb4a528263b252379f252f3e01
Reviewed-on: https://boringssl-review.googlesource.com/8512
Reviewed-by: David Benjamin <davidben@google.com>
Otherwise if the client's ClientHello logic is messed up and ServerHello is
fine, we won't notice.
Change-Id: I7f983cca45f7da1113ad4a72de1f991115e1b29a
Reviewed-on: https://boringssl-review.googlesource.com/8511
Reviewed-by: David Benjamin <davidben@google.com>
This also adds a missing check to the C half to ensure fake record types are
always correct, to keep implementations honest.
Change-Id: I1d65272e647ffa67018c721d52c639f8ba47d647
Reviewed-on: https://boringssl-review.googlesource.com/8510
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
As of 67cb49d045 and the corresponding upstream
change, BN_mod_word may fail, like BN_div_word. Handle this properly and
document in bn.h. Thanks to Brian Smith for pointing this out.
Change-Id: I6d4f32dc37bcabf70847c9a8b417d55d31b3a380
Reviewed-on: https://boringssl-review.googlesource.com/8491
Reviewed-by: Adam Langley <agl@google.com>
It was already nearly clean. Just one undeclared variable.
(Imported from upstream's abeae4d3251181f1cedd15e4433e79406b766155.)
Change-Id: I3b8f20034f914fc44faabf165d1553d4084c87cc
Reviewed-on: https://boringssl-review.googlesource.com/8393
Reviewed-by: Adam Langley <agl@google.com>
We were missing this case. It is possible to receive an early unencrypted
ChangeCipherSpec alert in DTLS because they aren't ordered relative to the
handshake. Test this case. (ChangeCipherSpec in DTLS is kind of pointless.)
Change-Id: I84268bc1821734f606fb20bfbeda91abf372f32c
Reviewed-on: https://boringssl-review.googlesource.com/8460
Reviewed-by: Adam Langley <agl@google.com>
The payload comments aren't necessary now that our parsing code is readable in
itself. The check is impossible to hit.
Change-Id: Ib41ad606babda903a9fab50de3189f97e99cac2f
Reviewed-on: https://boringssl-review.googlesource.com/8248
Reviewed-by: Adam Langley <agl@google.com>
That both exist with nearly the same name is unfortunate. This also does away
with cert_req being unnecessarily tri-state.
Change-Id: Id83e13d0249b80700d9258b363d43b15d22898d8
Reviewed-on: https://boringssl-review.googlesource.com/8247
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.2 has a long series of optional messages within a flight. We really
should send and process these synchronously. In the meantime, the 'skip'
pattern is probably the best we can get away with. Otherwise we have too many
state transitions to think about. (The business with CCS, NPN, and ChannelID is
particularly a headache. Session tickets aren't great either.)
Change-Id: I84e391a6410046372cf9c6989be056a27606ad19
Reviewed-on: https://boringssl-review.googlesource.com/8246
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
This functionally pulls in a number of changes from upstream, including:
4e3d2866b6e8e7a700ea22e05840a093bfd7a4b1
1eb12c437bbeb2c748291bcd23733d4a59d5d1ca
6a4ea0022c475bbc2c7ad98a6f05f6e2e850575b
c25278db8e4c21772a0cd81f7873e767cbc6d219
e0a651945cb5a70a2abd9902c0fd3e9759d35867
d405aa2ff265965c71ce7331cf0e49d634a06924
ce3d25d3e5a7e82fd59fd30dff7acc39baed8b5e
9ba96fbb2523cb12747c559c704c58bd8f9e7982
Notably, c25278db8e4c21772a0cd81f7873e767cbc6d219 makes it enable 'use strict'.
To avoid having to deal with complex conflicts, this was done by taking a diff
of our copy of the file with the point just before
c25278db8e4c21772a0cd81f7873e767cbc6d219, and reapplying the non-reverting
parts of our diff on top of upstream's current version.
Confirmed with generate_build_files.py that this makes no changes *except*
d405aa2ff265965c71ce7331cf0e49d634a06924 causes this sort of change throughout
chacha-x86_64.pl's nasm output:
@@ -1179,7 +1179,7 @@ $L$oop8x:
vpslld ymm14,ymm0,12
vpsrld ymm0,ymm0,20
vpor ymm0,ymm14,ymm0
- vbroadcasti128 ymm14,YMMWORD[r11]
+ vbroadcasti128 ymm14,XMMWORD[r11]
vpaddd ymm13,ymm13,ymm5
vpxor ymm1,ymm13,ymm1
vpslld ymm15,ymm1,12
This appears to be correct. vbroadcasti128 takes a 128-bit-wide second
argument, so it wants XMMWORD, not YMMWORD. I suppose nasm just didn't care.
(Looking at a diff-diff may be a more useful way to review this CL.)
Change-Id: I61be0d225ddf13b5f05d1369ddda84b2f322ef9d
Reviewed-on: https://boringssl-review.googlesource.com/8392
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
This is the only codepath where ssl->version can get a garbage value, which is
a little concerning. Since, in all these cases, the peer is failing to connect
and speaks so low a version we don't even accept it anymore, there is probably
not much value in letting them distinguish protocol_version from a record-layer
version number mismatch, where enforced (which will give a version-related
error anyway).
Should we get a decode_error or so just before version negotiation, we'd have
this behavior already.
Change-Id: I9b3e5685ab9c9ad32a7b7e3129363cd1d4cdaaf4
Reviewed-on: https://boringssl-review.googlesource.com/8420
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This implements the cipher suite constraints in "fake TLS 1.3". It also makes
bssl_shim and runner enable it by default so we can start adding MaxVersion:
VersionTLS12 markers to tests as 1.2 vs. 1.3 differences begin to take effect.
Change-Id: If1caf6e43938c8d15b0a0f39f40963b8199dcef5
Reviewed-on: https://boringssl-review.googlesource.com/8340
Reviewed-by: David Benjamin <davidben@google.com>
In order to ensure that we don't randomly interoperate with
implementations that don't mask scalars correctly, always generate
scalars with the wrong fixed bits.
Change-Id: I82536a856f034cfe4464fc545a99c21b3cff1691
Reviewed-on: https://boringssl-review.googlesource.com/8391
Reviewed-by: David Benjamin <davidben@google.com>
It's always one. We don't support other kinds of curves with this framework.
(Curve25519 uses a much simpler API.) This also allows us to remove the
check_pub_key_order logic.
Change-Id: Ic15e1ecd68662b838c76b1e0aa15c3a93200d744
Reviewed-on: https://boringssl-review.googlesource.com/8350
Reviewed-by: Adam Langley <agl@google.com>
DSA is deprecated, but get this aligned with some of the BN_FLG_CONSTTIME work
going on elsewhere.
Change-Id: I676ceab298a69362bef1b61d6f597c5c90da2ff0
Reviewed-on: https://boringssl-review.googlesource.com/8309
Reviewed-by: Adam Langley <agl@google.com>
The case where ec_group_get_mont_data is NULL is only for arbitrary groups
which we now require to be prime order. BN_mod_exp_mont is fine with a NULL
BN_MONT_CTX. It will just compute it. Saves a bit of special-casing.
Also don't mark p-2 as BN_FLG_CONSTTIME as the exponent is public anyway.
Change-Id: Ie868576d52fc9ae5f5c9f2a4039a729151bf84c7
Reviewed-on: https://boringssl-review.googlesource.com/8307
Reviewed-by: Adam Langley <agl@google.com>
The arguments to `jobs` and `workers` should be the number of cores that you wish to dedicate to fuzzing. By default, libFuzzer uses the largest test in the corpus (or 64 if empty) as the maximum test case length. The `max_len` argument overrides this.
The recommended values of `max_len` for each test are:
| Test | `max_len` value |
|------------|-----------------|
| `cert`| 3072 |
| `client` | 20000 |
| `pkcs8` | 2048 |
| `privkey` | 2048 |
| `server` | 4096 |
| `spki` | 1024 |
| `read_pem` | 512 |
| Test | `max_len` value |
|---------------|-----------------|
| `cert` | 10000 |
| `client` | 20000 |
| `pkcs8`| 2048 |
| `privkey` | 2048 |
| `server` | 4096 |
| `session` | 8192 |
| `spki` | 1024 |
| `read_pem` | 512 |
| `ssl_ctx_api` | 256 |
These were determined by rounding up the length of the largest case in the corpus.
@@ -52,12 +54,31 @@ In order to minimise all the corpuses, build for fuzzing and run `./fuzz/minimis
## Fuzzer mode
When `-DFUZZ=1` is passed into CMake, BoringSSL builds with `BORINGSSL_UNSAFE_FUZZER_MODE` defined. This modifies the library, particularly the TLS stack, to be more friendly to fuzzers. It will:
When `-DFUZZ=1` is passed into CMake, BoringSSL builds with `BORINGSSL_UNSAFE_FUZZER_MODE` and `BORINGSSL_UNSAFE_DETERMINISTIC_MODE` defined. This modifies the library to be more friendly to fuzzers. If `BORINGSSL_UNSAFE_DETERMINISTIC_MODE` is set, BoringSSL will:
* Replace `RAND_bytes` with a deterministic PRNG. Call `RAND_reset_for_fuzzing()` at the start of fuzzers which use `RAND_bytes` to reset the PRNG state.
* Use a hard-coded time instead of the actual time.
Additionally, if `BORINGSSL_UNSAFE_FUZZER_MODE` is set, BoringSSL will:
* Modify the TLS stack to perform all signature checks (CertificateVerify and ServerKeyExchange) and the Finished check, but always act as if the check succeeded.
* Treat every cipher as the NULL cipher.
* Tickets are unencrypted and the MAC check is performed but ignored.
This is to prevent the fuzzer from getting stuck at a cryptographic invariant in the protocol.
## TLS transcripts
The `client` and `server` corpora are seeded from the test suite. The test suite has a `-fuzzer` flag which mirrors the fuzzer mode changes above and a `-deterministic` flag which removes all non-determinism on the Go side. Not all tests pass, so `ssl/test/runner/fuzzer_mode.json` contains the necessary suppressions. The `run_tests` target will pass appropriate command-line flags.
There are separate corpora, `client_corpus_no_fuzzer_mode` and `server_corpus_no_fuzzer_mode`. These are transcripts for fuzzers with only `BORINGSSL_UNSAFE_DETERMINISTIC_MODE` defined. To build in this mode, pass `-DNO_FUZZER_MODE=1` into CMake. This configuration is run in the same way but without `-fuzzer` and `-shim-path` flags.
If both sets of tests pass, refresh the fuzzer corpora with `refresh_ssl_corpora.sh`:
`SSL_CTRL_MODE` | `SSL_CTX_get_mode` or `SSL_CTX_set_mode`
`SSL_CTRL_NEED_TMP_RSA` | `SSL_CTX_need_tmp_RSA` is equivalent, but [*do not use this function*](https://freakattack.com/). (It is a no-op in BoringSSL.)
`SSL_CTRL_OPTIONS` | `SSL_CTX_get_options` or `SSL_CTX_set_options`
`SSL_CTRL_SET_TMP_RSA` | `SSL_CTX_set_tmp_rsa` is equivalent, but [*do not use this function*](https://freakattack.com/). (It is a no-op in BoringSSL.)
`SSL_CTRL_SET_TMP_RSA_CB` | `SSL_CTX_set_tmp_rsa_callback` is equivalent, but [*do not use this function*](https://freakattack.com/). (It is a no-op in BoringSSL.)
@@ -26,6 +26,7 @@ There are other files in this directory which might be helpful:
* [PORTING.md](/PORTING.md): how to port OpenSSL-using code to BoringSSL.
* [BUILDING.md](/BUILDING.md): how to build BoringSSL
* [INCORPORATING.md](/INCORPORATING.md): how to incorporate BoringSSL into a project.
* [API-CONVENTIONS.md](/API-CONVENTIONS.md): general API conventions for BoringSSL consumers and developers.
* [STYLE.md](/STYLE.md): rules and guidelines for coding style.
* include/openssl: public headers with API documentation in comments. Also [available online](https://commondatastorage.googleapis.com/chromium-boringssl-docs/headers.html).
* [FUZZING.md](/FUZZING.md): information about fuzzing BoringSSL.
// It's not possible to take an unused bit off the empty string.
{0x01},
// There can be at most 7 unused bits.
{0x08,0xff},
{0xff,0xff},
// All unused bits must be cleared.
{0x06,0xff,0xc1},
};
for(constauto&test:kInvalidBitStrings){
CBScbs;
CBS_init(&cbs,test.data(),test.size());
if(CBS_is_valid_asn1_bitstring(&cbs)){
returnfalse;
}
// CBS_asn1_bitstring_has_bit returns false on invalid inputs.
if(CBS_asn1_bitstring_has_bit(&cbs,0)){
returnfalse;
}
}
staticconststruct{
std::vector<uint8_t>in;
unsignedbit;
boolbit_set;
}kBitTests[]={
// Basic tests.
{{0x00},0,false},
{{0x07,0x80},0,true},
{{0x06,0x0f,0x40},0,false},
{{0x06,0x0f,0x40},1,false},
{{0x06,0x0f,0x40},2,false},
{{0x06,0x0f,0x40},3,false},
{{0x06,0x0f,0x40},4,true},
{{0x06,0x0f,0x40},5,true},
{{0x06,0x0f,0x40},6,true},
{{0x06,0x0f,0x40},7,true},
{{0x06,0x0f,0x40},8,false},
{{0x06,0x0f,0x40},9,true},
// Out-of-bounds bits return 0.
{{0x06,0x0f,0x40},10,false},
{{0x06,0x0f,0x40},15,false},
{{0x06,0x0f,0x40},16,false},
{{0x06,0x0f,0x40},1000,false},
};
for(constauto&test:kBitTests){
CBScbs;
CBS_init(&cbs,test.in.data(),test.in.size());
if(CBS_asn1_bitstring_has_bit(&cbs,test.bit)!=
static_cast<int>(test.bit_set)){
returnfalse;
}
}
returntrue;
}
intmain(){
CRYPTO_library_init();
if(!TestSkip()||
@@ -816,7 +991,9 @@ int main(void) {
!TestASN1Uint64()||
!TestGetOptionalASN1Bool()||
!TestZero()||
!TestCBBReserve()){
!TestCBBReserve()||
!TestStickyError()||
!TestBitString()){
return1;
}
Some files were not shown because too many files have changed in this diff
Show More
Reference in New Issue
Block a user
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
Adam Langley
Alessandro Ghedini
David Benjamin
Michel Lespinasse
Matthew Braithwaite
Adam Langley
Steven Valdez
Rob Sloan
Brian Smith
Nick Harper
vkrasnov
Aaron Green
Raullen Chai
Martin Kreichgauer
Doug Kwan
Aurelien Regat-Barrel
Steven Valdez
Jinguang Dong
Kenneth Geisshirt
Ladar Levison
Nico Weber
Daniel Bathgate
Mike Aizatsky
EKR
Eric Roman
Andrii Shyshkalov
Radu Margarint
Dan Willemsen
Steven Valdez
Julien Schmidt