crypto/aead_openssl_unittest.cc

   1 // Copyright 2015 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/aead_openssl.h"
   6
   7 #include <string>
   8
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 namespace {
  12
  13 #if defined(USE_OPENSSL)
  14
  15 TEST(AeadTest, SealOpen) {
  16   crypto::Aead aead(crypto::Aead::AES_128_CTR_HMAC_SHA256);
  17   std::string key(aead.KeyLength(), 0);
  18   aead.Init(&key);
  19   std::string nonce(aead.NonceLength(), 0);
  20   std::string plaintext("this is the plaintext");
  21   std::string ad("this is the additional data");
  22   std::string ciphertext;
  23   EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
  24   EXPECT_LT(0U, ciphertext.size());
  25
  26   std::string decrypted;
  27   EXPECT_TRUE(aead.Open(ciphertext, nonce, ad, &decrypted));
  28
  29   EXPECT_EQ(plaintext, decrypted);
  30 }
  31
  32 TEST(AeadTest, SealOpenWrongKey) {
  33   crypto::Aead aead(crypto::Aead::AES_128_CTR_HMAC_SHA256);
  34   std::string key(aead.KeyLength(), 0);
  35   std::string wrong_key(aead.KeyLength(), 1);
  36   aead.Init(&key);
  37   crypto::Aead aead_wrong_key(crypto::Aead::AES_128_CTR_HMAC_SHA256);
  38   aead_wrong_key.Init(&wrong_key);
  39
  40   std::string nonce(aead.NonceLength(), 0);
  41   std::string plaintext("this is the plaintext");
  42   std::string ad("this is the additional data");
  43   std::string ciphertext;
  44   EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
  45   EXPECT_LT(0U, ciphertext.size());
  46
  47   std::string decrypted;
  48   EXPECT_FALSE(aead_wrong_key.Open(ciphertext, nonce, ad, &decrypted));
  49   EXPECT_EQ(0U, decrypted.size());
  50 }
  51
  52 #endif
  53
  54 }  // namespace