28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/*
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* libjingle
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* Copyright 2012 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_BASE_SHA1DIGEST_H_
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#define TALK_BASE_SHA1DIGEST_H_
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#include "talk/base/messagedigest.h"
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#include "talk/base/sha1.h"
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namespace talk_base {
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// A simple wrapper for our SHA-1 implementation.
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class Sha1Digest : public MessageDigest {
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public:
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enum { kSize = SHA1_DIGEST_SIZE };
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Sha1Digest() {
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SHA1Init(&ctx_);
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}
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virtual size_t Size() const {
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return kSize;
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}
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virtual void Update(const void* buf, size_t len) {
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SHA1Update(&ctx_, static_cast<const uint8*>(buf), len);
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}
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virtual size_t Finish(void* buf, size_t len) {
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if (len < kSize) {
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return 0;
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}
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SHA1Final(&ctx_, static_cast<uint8*>(buf));
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SHA1Init(&ctx_); // Reset for next use.
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return kSize;
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}
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private:
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SHA1_CTX ctx_;
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};
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} // namespace talk_base
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#endif // TALK_BASE_SHA1DIGEST_H_
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