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Bug 1061992 - remove Chromium hmac code from IPC code. rs=bent

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This commit is contained in:
Josh Aas 2014-09-02 19:33:04 -05:00
parent f2974e9fd5
commit 1dd74d693f
3 changed files with 0 additions and 126 deletions
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1
ipc/chromium/moz.build
View File

@ -178,7 +178,6 @@ if os_posix:
if os_macosx:
UNIFIED_SOURCES += [
'src/base/debug_util_mac.cc',
'src/base/hmac_mac.cc',
'src/base/idle_timer.cc',
'src/base/sys_info_mac.cc',
'src/base/time_mac.cc',

56
ipc/chromium/src/base/hmac.h
View File

@ -1,56 +0,0 @@
// Copyright (c) 2006-2008 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.
// Utility class for calculating the HMAC for a given message. We currently
// only support SHA1 for the hash algorithm, but this can be extended easily.
#ifndef BASE_HMAC_H_
#define BASE_HMAC_H_
#include <string>
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
namespace base {
// Simplify the interface and reduce includes by abstracting out the internals.
struct HMACPlatformData;
class HMAC {
public:
// The set of supported hash functions. Extend as required.
enum HashAlgorithm {
SHA1
};
explicit HMAC(HashAlgorithm hash_alg);
~HMAC();
// Initializes this instance using |key| of the length |key_length|. Call Init
// only once. It returns false on the second or later calls.
bool Init(const unsigned char* key, int key_length);
// Initializes this instance using |key|. Call Init only once. It returns
// false on the second or later calls.
bool Init(const std::string& key) {
return Init(reinterpret_cast<const unsigned char*>(key.data()),
static_cast<int>(key.size()));
}
// Calculates the HMAC for the message in |data| using the algorithm supplied
// to the constructor and the key supplied to the Init method. The HMAC is
// returned in |digest|, which has |digest_length| bytes of storage available.
bool Sign(const std::string& data, unsigned char* digest, int digest_length);
private:
HashAlgorithm hash_alg_;
scoped_ptr<HMACPlatformData> plat_;
DISALLOW_COPY_AND_ASSIGN(HMAC);
};
} // namespace base
#endif // BASE_HMAC_H_

69
ipc/chromium/src/base/hmac_mac.cc
View File

@ -1,69 +0,0 @@
// Copyright (c) 2008 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 digest is supported now.
DCHECK(hash_alg_ == SHA1);
}
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;
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