Implements Signature Creator & Verifier for openssl
Also adds a little more infrastructure to assist in openssl error handling.
BUG=None
TEST=base_unittests RSA* and Sign*
Review URL: http://codereview.chromium.org/5105003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@66622 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/crypto/signature_creator_openssl.cc b/base/crypto/signature_creator_openssl.cc
index 5d70f01..7eed379 100644
--- a/base/crypto/signature_creator_openssl.cc
+++ b/base/crypto/signature_creator_openssl.cc
@@ -4,29 +4,50 @@
#include "base/crypto/signature_creator.h"
+#include <openssl/evp.h>
+
#include "base/logging.h"
+#include "base/openssl_util.h"
+#include "base/scoped_ptr.h"
namespace base {
// static
SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) {
- return NULL;
+ OpenSSLErrStackTracer err_tracer(FROM_HERE);
+ scoped_ptr<SignatureCreator> result(new SignatureCreator);
+ result->key_ = key;
+ if (!EVP_SignInit_ex(result->sign_context_, EVP_sha1(), NULL))
+ return NULL;
+ return result.release();
}
-SignatureCreator::SignatureCreator() {
+SignatureCreator::SignatureCreator()
+ : sign_context_(EVP_MD_CTX_create()) {
}
SignatureCreator::~SignatureCreator() {
+ EVP_MD_CTX_destroy(sign_context_);
}
bool SignatureCreator::Update(const uint8* data_part, int data_part_len) {
- NOTIMPLEMENTED();
- return false;
+ OpenSSLErrStackTracer err_tracer(FROM_HERE);
+ return EVP_SignUpdate(sign_context_, data_part, data_part_len) == 1;
}
bool SignatureCreator::Final(std::vector<uint8>* signature) {
- NOTIMPLEMENTED();
- return false;
+ OpenSSLErrStackTracer err_tracer(FROM_HERE);
+ EVP_PKEY* key = key_->key();
+ signature->resize(EVP_PKEY_size(key));
+
+ unsigned int len = 0;
+ int rv = EVP_SignFinal(sign_context_, signature->data(), &len, key);
+ if (!rv) {
+ signature->clear();
+ return false;
+ }
+ signature->resize(len);
+ return true;
}
} // namespace base
