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// Copyright (c) 2012 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 "crypto/ec_signature_creator.h"
#include <string>
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "crypto/ec_private_key.h"
#include "crypto/signature_verifier.h"
#include "testing/gtest/include/gtest/gtest.h"
#if defined(USE_OPENSSL)
// Once ECSignatureCreator is implemented for OpenSSL, remove this #if block.
// TODO(rch): When that happens, also add some exported keys from each to
// test interop between NSS and OpenSSL.
TEST(ECSignatureCreatorTest, OpenSSLStub) {
scoped_ptr<crypto::ECSignatureCreator> signer(
crypto::ECSignatureCreator::Create(NULL));
ASSERT_TRUE(signer.get());
EXPECT_FALSE(signer->Sign(NULL, 0, NULL));
}
#else
TEST(ECSignatureCreatorTest, BasicTest) {
// Do a verify round trip.
scoped_ptr<crypto::ECPrivateKey> key_original(
crypto::ECPrivateKey::Create());
ASSERT_TRUE(key_original.get());
std::vector<uint8> key_info;
ASSERT_TRUE(key_original->ExportEncryptedPrivateKey("", 1000, &key_info));
std::vector<uint8> pubkey_info;
ASSERT_TRUE(key_original->ExportPublicKey(&pubkey_info));
scoped_ptr<crypto::ECPrivateKey> key(
crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo("", key_info,
pubkey_info));
ASSERT_TRUE(key.get());
ASSERT_TRUE(key->key() != NULL);
scoped_ptr<crypto::ECSignatureCreator> signer(
crypto::ECSignatureCreator::Create(key.get()));
ASSERT_TRUE(signer.get());
std::string data("Hello, World!");
std::vector<uint8> signature;
ASSERT_TRUE(signer->Sign(reinterpret_cast<const uint8*>(data.c_str()),
data.size(),
&signature));
std::vector<uint8> public_key_info;
ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
// This is the algorithm ID for SHA-256 with EC encryption.
const uint8 kECDSAWithSHA256AlgorithmID[] = {
0x30, 0x0c,
0x06, 0x08,
0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
0x05, 0x00
};
crypto::SignatureVerifier verifier;
ASSERT_TRUE(verifier.VerifyInit(
kECDSAWithSHA256AlgorithmID, sizeof(kECDSAWithSHA256AlgorithmID),
&signature[0], signature.size(),
&public_key_info.front(), public_key_info.size()));
verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
data.size());
ASSERT_TRUE(verifier.VerifyFinal());
}
#endif // !defined(USE_OPENSSL)