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Unified Diff: base/hmac_mac.cc

Issue 6805019: Move crypto files out of base, to a top level directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Fixes comments by eroman Created 9 years, 8 months ago
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Index: base/hmac_mac.cc
===================================================================
--- base/hmac_mac.cc (revision 81350)
+++ base/hmac_mac.cc (working copy)
@@ -1,73 +0,0 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/hmac.h"
-
-#include <CommonCrypto/CommonHMAC.h>
-
-#include "base/logging.h"
-
-namespace base {
-
-struct HMACPlatformData {
- std::string key_;
-};
-
-HMAC::HMAC(HashAlgorithm hash_alg)
- : hash_alg_(hash_alg), plat_(new HMACPlatformData()) {
- // Only SHA-1 and SHA-256 hash algorithms are supported now.
- DCHECK(hash_alg_ == SHA1 || hash_alg_ == SHA256);
-}
-
-bool HMAC::Init(const unsigned char *key, int key_length) {
- if (!plat_->key_.empty()) {
- // Init must not be called more than once on the same HMAC object.
- NOTREACHED();
- return false;
- }
-
- plat_->key_.assign(reinterpret_cast<const char*>(key), key_length);
-
- return true;
-}
-
-HMAC::~HMAC() {
- // Zero out key copy.
- plat_->key_.assign(plat_->key_.length(), std::string::value_type());
- plat_->key_.clear();
- plat_->key_.reserve(0);
-}
-
-bool HMAC::Sign(const std::string& data,
- unsigned char* digest,
- int digest_length) {
- CCHmacAlgorithm algorithm;
- int algorithm_digest_length;
- switch (hash_alg_) {
- case SHA1:
- algorithm = kCCHmacAlgSHA1;
- algorithm_digest_length = CC_SHA1_DIGEST_LENGTH;
- break;
- case SHA256:
- algorithm = kCCHmacAlgSHA256;
- algorithm_digest_length = CC_SHA256_DIGEST_LENGTH;
- break;
- default:
- NOTREACHED();
- return false;
- }
-
- if (digest_length < algorithm_digest_length) {
- NOTREACHED();
- return false;
- }
-
- CCHmac(algorithm,
- plat_->key_.data(), plat_->key_.length(), data.data(), data.length(),
- digest);
-
- return true;
-}
-
-} // namespace base
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