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authorwtc@chromium.org <wtc@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-05 23:55:59 +0000
committerwtc@chromium.org <wtc@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2009-05-05 23:55:59 +0000
commitd91f84376fe8dd249770ac19b7c08f8fcc20f446 (patch)
tree8d66a665eac06063bfcf50236fca05f2e4f8f1ea /base/hmac_mac.cc
parenta92b86497b6ee02c99a2e4b4a8cf7fb458ab6310 (diff)
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Separate the key setting code in the constructor of HMAC class into the Init
method. Overload the Init method for char* and std::string. Add DCHECKs to the destruction methods in ~HMAC in hmac_win.cc. The patch is written by Takeshi Yoshino <tyoshino@google.com>. Original code review: http://codereview.chromium.org/88062 R=wtc http://crbug.com/2297 TEST=base_unittests should pass. Safe browsing should continue to work. Review URL: http://codereview.chromium.org/113001 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15353 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/hmac_mac.cc')
-rw-r--r--base/hmac_mac.cc15
1 files changed, 14 insertions, 1 deletions
diff --git a/base/hmac_mac.cc b/base/hmac_mac.cc
index 668b306..bbc9330 100644
--- a/base/hmac_mac.cc
+++ b/base/hmac_mac.cc
@@ -14,9 +14,22 @@ struct HMACPlatformData {
std::string key_;
};
-HMAC::HMAC(HashAlgorithm hash_alg, const unsigned char* key, int key_length)
+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() {