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openssl-machine
c721580653
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org> MergeDate: Tue Mar 10 14:37:54 2026 Release: yes
HTTP/3 Demo using OpenSSL QUIC and nghttp3
This is a simple demo of how to use HTTP/3 with OpenSSL QUIC using the HTTP/3 library “nghttp3”.
The demo is structured into two parts:
- an adaptation layer which binds nghttp3 to OpenSSL's QUIC implementation
(
ossl-nghttp3.c); - a simple application which makes an HTTP/3 request using this adaptation
layer (
ossl-nghttp3-demo.c).
The Makefile in this directory can be used to build the demo on *nix-style
systems. You will need the nghttp3 library and header file. On
Ubuntu, these can be obtained by installing the package libnghttp3-dev.
Running the Demo
Depending on your system configuration it may be necessary to set the
SSL_CERT_FILE or SSL_CERT_DIR environment variables to a location where
trusted root CA certificates can be found.
After building by running make, run ./ossl-nghttp3-demo with a hostname and
port as the sole argument:
$ make
$ LD_LIBRARY_PATH=../.. ./ossl-nghttp3-demo www.google.com:443
The demo produces the HTTP response headers in textual form as output followed by the response body.