crypto/secure_hash_unittest.cc

   1 // Copyright (c) 2011 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 "crypto/secure_hash.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "crypto/sha2.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 TEST(SecureHashTest, TestUpdate) {
  13   // Example B.3 from FIPS 180-2: long message.
  14   std::string input3(500000, 'a');  // 'a' repeated half a million times
  15   int expected3[] = { 0xcd, 0xc7, 0x6e, 0x5c,
  16                       0x99, 0x14, 0xfb, 0x92,
  17                       0x81, 0xa1, 0xc7, 0xe2,
  18                       0x84, 0xd7, 0x3e, 0x67,
  19                       0xf1, 0x80, 0x9a, 0x48,
  20                       0xa4, 0x97, 0x20, 0x0e,
  21                       0x04, 0x6d, 0x39, 0xcc,
  22                       0xc7, 0x11, 0x2c, 0xd0 };
  23
  24   uint8 output3[crypto::SHA256_LENGTH];
  25
  26   scoped_ptr<crypto::SecureHash> ctx(crypto::SecureHash::Create(
  27       crypto::SecureHash::SHA256));
  28   ctx->Update(input3.data(), input3.size());
  29   ctx->Update(input3.data(), input3.size());
  30
  31   ctx->Finish(output3, sizeof(output3));
  32   for (size_t i = 0; i < crypto::SHA256_LENGTH; i++)
  33     EXPECT_EQ(expected3[i], static_cast<int>(output3[i]));
  34 }