crypto/signature_creator_unittest.cc

   1 // Copyright 2012 The Chromium Authors
   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 "crypto/signature_creator.h"
   6
   7 #include <stdint.h>
   8
   9 #include <memory>
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/hash/sha1.h"
  14 #include "crypto/rsa_private_key.h"
  15 #include "crypto/sha2.h"
  16 #include "crypto/signature_verifier.h"
  17 #include "testing/gtest/include/gtest/gtest.h"
  18
  19 TEST(SignatureCreatorTest, BasicTest) {
  20   // Do a verify round trip.
  21   std::unique_ptr<crypto::RSAPrivateKey> key_original(
  22       crypto::RSAPrivateKey::Create(1024));
  23   ASSERT_TRUE(key_original.get());
  24
  25   std::vector<uint8_t> key_info;
  26   key_original->ExportPrivateKey(&key_info);
  27   std::unique_ptr<crypto::RSAPrivateKey> key(
  28       crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
  29   ASSERT_TRUE(key.get());
  30
  31   std::unique_ptr<crypto::SignatureCreator> signer(
  32       crypto::SignatureCreator::Create(key.get(),
  33                                        crypto::SignatureCreator::SHA1));
  34   ASSERT_TRUE(signer.get());
  35
  36   std::string data("Hello, World!");
  37   ASSERT_TRUE(signer->Update(reinterpret_cast<const uint8_t*>(data.c_str()),
  38                              data.size()));
  39
  40   std::vector<uint8_t> signature;
  41   ASSERT_TRUE(signer->Final(&signature));
  42
  43   std::vector<uint8_t> public_key_info;
  44   ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
  45
  46   crypto::SignatureVerifier verifier;
  47   ASSERT_TRUE(verifier.VerifyInit(crypto::SignatureVerifier::RSA_PKCS1_SHA1,
  48                                   signature, public_key_info));
  49
  50   verifier.VerifyUpdate(base::as_bytes(base::make_span(data)));
  51   ASSERT_TRUE(verifier.VerifyFinal());
  52 }
  53
  54 TEST(SignatureCreatorTest, SignDigestTest) {
  55   // Do a verify round trip.
  56   std::unique_ptr<crypto::RSAPrivateKey> key_original(
  57       crypto::RSAPrivateKey::Create(1024));
  58   ASSERT_TRUE(key_original.get());
  59
  60   std::vector<uint8_t> key_info;
  61   key_original->ExportPrivateKey(&key_info);
  62   std::unique_ptr<crypto::RSAPrivateKey> key(
  63       crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
  64   ASSERT_TRUE(key.get());
  65
  66   std::string data("Hello, World!");
  67   std::string sha1 = base::SHA1HashString(data);
  68   // Sign sha1 of the input data.
  69   std::vector<uint8_t> signature;
  70   ASSERT_TRUE(crypto::SignatureCreator::Sign(
  71       key.get(), crypto::SignatureCreator::SHA1,
  72       reinterpret_cast<const uint8_t*>(sha1.c_str()), sha1.size(), &signature));
  73
  74   std::vector<uint8_t> public_key_info;
  75   ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
  76
  77   // Verify the input data.
  78   crypto::SignatureVerifier verifier;
  79   ASSERT_TRUE(verifier.VerifyInit(crypto::SignatureVerifier::RSA_PKCS1_SHA1,
  80                                   signature, public_key_info));
  81
  82   verifier.VerifyUpdate(base::as_bytes(base::make_span(data)));
  83   ASSERT_TRUE(verifier.VerifyFinal());
  84 }
  85
  86 TEST(SignatureCreatorTest, SignSHA256DigestTest) {
  87   // Do a verify round trip.
  88   std::unique_ptr<crypto::RSAPrivateKey> key_original(
  89       crypto::RSAPrivateKey::Create(1024));
  90   ASSERT_TRUE(key_original.get());
  91
  92   std::vector<uint8_t> key_info;
  93   key_original->ExportPrivateKey(&key_info);
  94   std::unique_ptr<crypto::RSAPrivateKey> key(
  95       crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_info));
  96   ASSERT_TRUE(key.get());
  97
  98   std::string data("Hello, World!");
  99   std::string sha256 = crypto::SHA256HashString(data);
 100   // Sign sha256 of the input data.
 101   std::vector<uint8_t> signature;
 102   ASSERT_TRUE(crypto::SignatureCreator::Sign(
 103       key.get(), crypto::SignatureCreator::HashAlgorithm::SHA256,
 104       reinterpret_cast<const uint8_t*>(sha256.c_str()), sha256.size(),
 105       &signature));
 106
 107   std::vector<uint8_t> public_key_info;
 108   ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
 109
 110   // Verify the input data.
 111   crypto::SignatureVerifier verifier;
 112   ASSERT_TRUE(verifier.VerifyInit(crypto::SignatureVerifier::RSA_PKCS1_SHA256,
 113                                   signature, public_key_info));
 114
 115   verifier.VerifyUpdate(base::as_bytes(base::make_span(data)));
 116   ASSERT_TRUE(verifier.VerifyFinal());
 117 }