1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include <vector>
6
7#include "base/memory/scoped_ptr.h"
8#include "base/sha1.h"
9#include "crypto/rsa_private_key.h"
10#include "crypto/signature_creator.h"
11#include "crypto/signature_verifier.h"
12#include "testing/gtest/include/gtest/gtest.h"
13
14namespace {
15
16// This is the algorithm ID for SHA-1 with RSA encryption.
17const uint8 kSHA1WithRSAAlgorithmID[] = {
18  0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
19  0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00
20};
21
22}
23
24TEST(SignatureCreatorTest, BasicTest) {
25  // Do a verify round trip.
26  scoped_ptr<crypto::RSAPrivateKey> key_original(
27      crypto::RSAPrivateKey::Create(1024));
28  ASSERT_TRUE(key_original.get());
29
30  std::vector<uint8> key_info;
31  key_original->ExportPrivateKey(&key_info);
32  scoped_ptr<crypto::RSAPrivateKey> key(
33      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
34  ASSERT_TRUE(key.get());
35
36  scoped_ptr<crypto::SignatureCreator> signer(
37      crypto::SignatureCreator::Create(key.get()));
38  ASSERT_TRUE(signer.get());
39
40  std::string data("Hello, World!");
41  ASSERT_TRUE(signer->Update(reinterpret_cast<const uint8*>(data.c_str()),
42                             data.size()));
43
44  std::vector<uint8> signature;
45  ASSERT_TRUE(signer->Final(&signature));
46
47  std::vector<uint8> public_key_info;
48  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
49
50  crypto::SignatureVerifier verifier;
51  ASSERT_TRUE(verifier.VerifyInit(
52      kSHA1WithRSAAlgorithmID, sizeof(kSHA1WithRSAAlgorithmID),
53      &signature.front(), signature.size(),
54      &public_key_info.front(), public_key_info.size()));
55
56  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
57                        data.size());
58  ASSERT_TRUE(verifier.VerifyFinal());
59}
60
61TEST(SignatureCreatorTest, SignDigestTest) {
62  // Do a verify round trip.
63  scoped_ptr<crypto::RSAPrivateKey> key_original(
64      crypto::RSAPrivateKey::Create(1024));
65  ASSERT_TRUE(key_original.get());
66
67  std::vector<uint8> key_info;
68  key_original->ExportPrivateKey(&key_info);
69  scoped_ptr<crypto::RSAPrivateKey> key(
70      crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
71  ASSERT_TRUE(key.get());
72
73  std::string data("Hello, World!");
74  std::string sha1 = base::SHA1HashString(data);
75  // Sign sha1 of the input data.
76  std::vector<uint8> signature;
77  ASSERT_TRUE(crypto::SignatureCreator::Sign(
78      key.get(),
79      reinterpret_cast<const uint8*>(sha1.c_str()),
80      sha1.size(),
81      &signature));
82
83  std::vector<uint8> public_key_info;
84  ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
85
86  // Verify the input data.
87  crypto::SignatureVerifier verifier;
88  ASSERT_TRUE(verifier.VerifyInit(
89      kSHA1WithRSAAlgorithmID, sizeof(kSHA1WithRSAAlgorithmID),
90      &signature.front(), signature.size(),
91      &public_key_info.front(), public_key_info.size()));
92
93  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
94                        data.size());
95  ASSERT_TRUE(verifier.VerifyFinal());
96}
97