1 // Copyright 2015 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.
5 #include "crypto/aead.h"
9 #include "testing/gtest/include/gtest/gtest.h"
13 const crypto::Aead::AeadAlgorithm kAllAlgorithms[]{
14 crypto::Aead::AES_128_CTR_HMAC_SHA256,
15 crypto::Aead::AES_256_GCM,
16 crypto::Aead::AES_256_GCM_SIV,
17 crypto::Aead::CHACHA20_POLY1305,
20 class AeadTest : public testing::TestWithParam<crypto::Aead::AeadAlgorithm> {};
22 INSTANTIATE_TEST_SUITE_P(All, AeadTest, testing::ValuesIn(kAllAlgorithms));
24 TEST_P(AeadTest, SealOpen) {
25 crypto::Aead::AeadAlgorithm alg = GetParam();
26 crypto::Aead aead(alg);
27 std::string key(aead.KeyLength(), 0);
29 std::string nonce(aead.NonceLength(), 0);
30 std::string plaintext("this is the plaintext");
31 std::string ad("this is the additional data");
32 std::string ciphertext;
33 EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
34 EXPECT_LT(0U, ciphertext.size());
36 std::string decrypted;
37 EXPECT_TRUE(aead.Open(ciphertext, nonce, ad, &decrypted));
39 EXPECT_EQ(plaintext, decrypted);
42 TEST_P(AeadTest, SealOpenSpan) {
43 crypto::Aead::AeadAlgorithm alg = GetParam();
44 crypto::Aead aead(alg);
45 std::vector<uint8_t> key(aead.KeyLength(), 0u);
47 std::vector<uint8_t> nonce(aead.NonceLength(), 0u);
48 static constexpr uint8_t kPlaintext[] = "plaintext";
49 static constexpr uint8_t kAdditionalData[] = "additional data input";
50 std::vector<uint8_t> ciphertext =
51 aead.Seal(kPlaintext, nonce, kAdditionalData);
52 EXPECT_LT(sizeof(kPlaintext), ciphertext.size());
54 absl::optional<std::vector<uint8_t>> decrypted =
55 aead.Open(ciphertext, nonce, kAdditionalData);
56 ASSERT_TRUE(decrypted);
57 ASSERT_EQ(decrypted->size(), sizeof(kPlaintext));
58 ASSERT_EQ(0, memcmp(decrypted->data(), kPlaintext, sizeof(kPlaintext)));
60 std::vector<uint8_t> wrong_key(aead.KeyLength(), 1u);
61 crypto::Aead aead_wrong_key(alg);
62 aead_wrong_key.Init(wrong_key);
63 decrypted = aead_wrong_key.Open(ciphertext, nonce, kAdditionalData);
64 EXPECT_FALSE(decrypted);
67 TEST_P(AeadTest, SealOpenWrongKey) {
68 crypto::Aead::AeadAlgorithm alg = GetParam();
69 crypto::Aead aead(alg);
70 std::string key(aead.KeyLength(), 0);
71 std::string wrong_key(aead.KeyLength(), 1);
73 crypto::Aead aead_wrong_key(alg);
74 aead_wrong_key.Init(&wrong_key);
76 std::string nonce(aead.NonceLength(), 0);
77 std::string plaintext("this is the plaintext");
78 std::string ad("this is the additional data");
79 std::string ciphertext;
80 EXPECT_TRUE(aead.Seal(plaintext, nonce, ad, &ciphertext));
81 EXPECT_LT(0U, ciphertext.size());
83 std::string decrypted;
84 EXPECT_FALSE(aead_wrong_key.Open(ciphertext, nonce, ad, &decrypted));
85 EXPECT_EQ(0U, decrypted.size());