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Billy Gray
43 lines
1.4 KiB
Objective-C
43 lines
1.4 KiB
Objective-C
//
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// NSString+PECrypt.m
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// CocoaFob
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//
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// Created by Gleb Dolgich on 09/02/2009.
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// Follow me on Twitter @gbd
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// Copyright (C) 2009 PixelEspresso. All rights reserved.
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// Licensed under CC Attribution License 3.0 <http://creativecommons.org/licenses/by/3.0/>
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//
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#import "NSString+PECrypt.h"
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#include <CommonCrypto/CommonDigest.h>
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@implementation NSString (PXCrypt)
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- (NSData *)sha1 {
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unsigned char digest[CC_SHA1_DIGEST_LENGTH];
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NSData *data = [self dataUsingEncoding:NSUTF8StringEncoding];
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CC_SHA1([data bytes], (unsigned int)[data length], digest);
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return [NSData dataWithBytes:digest length:CC_SHA1_DIGEST_LENGTH];
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}
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// Formely based on Dave Dribin's code, http://www.dribin.org/dave/blog/archives/2006/03/12/base64_cocoa/
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// Updated to use CommonCrypto instead of OpenSSL
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- (NSString *)base64DecodeWithBreaks:(BOOL)lineBreaks {
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SecTransformRef transform = SecDecodeTransformCreate(kSecBase64Encoding, NULL);
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NSData *output = nil;
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if (SecTransformSetAttribute(transform, kSecTransformInputAttributeName, [self dataUsingEncoding:NSASCIIStringEncoding], NULL)) {
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output = (NSData *)SecTransformExecute(transform, NULL);
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}
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CFRelease(transform);
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NSString *decoded = [NSString stringWithUTF8String:[output bytes]];
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[output release];
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return decoded;
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}
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- (NSString *)base64Decode {
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return [self base64DecodeWithBreaks:NO];
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}
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@end
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