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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/gcm_driver/crypto/gcm_crypto_test_helpers.h" | 5 #include "components/gcm_driver/crypto/gcm_crypto_test_helpers.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 | 8 |
9 #include <sstream> | 9 #include <sstream> |
10 #include <string> | 10 #include <string> |
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37 &shared_secret)) { | 37 &shared_secret)) { |
38 return false; | 38 return false; |
39 } | 39 } |
40 | 40 |
41 std::string salt; | 41 std::string salt; |
42 | 42 |
43 // Generate a cryptographically secure random salt for the message. | 43 // Generate a cryptographically secure random salt for the message. |
44 const size_t salt_size = GCMMessageCryptographer::kSaltSize; | 44 const size_t salt_size = GCMMessageCryptographer::kSaltSize; |
45 crypto::RandBytes(base::WriteInto(&salt, salt_size + 1), salt_size); | 45 crypto::RandBytes(base::WriteInto(&salt, salt_size + 1), salt_size); |
46 | 46 |
47 GCMMessageCryptographer cryptographer(GCMMessageCryptographer::Label::P256, | 47 GCMMessageCryptographer cryptographer(peer_public_key, public_key, |
48 peer_public_key, public_key, | |
49 auth_secret.as_string()); | 48 auth_secret.as_string()); |
50 | 49 |
51 size_t record_size; | 50 size_t record_size; |
52 std::string ciphertext; | 51 std::string ciphertext; |
53 | 52 |
54 if (!cryptographer.Encrypt(payload, shared_secret, salt, &record_size, | 53 if (!cryptographer.Encrypt(payload, shared_secret, salt, &record_size, |
55 &ciphertext)) { | 54 &ciphertext)) { |
56 return false; | 55 return false; |
57 } | 56 } |
58 | 57 |
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74 std::stringstream crypto_key_header; | 73 std::stringstream crypto_key_header; |
75 crypto_key_header << "dh=" << encoded_public_key; | 74 crypto_key_header << "dh=" << encoded_public_key; |
76 | 75 |
77 message->data["crypto-key"] = crypto_key_header.str(); | 76 message->data["crypto-key"] = crypto_key_header.str(); |
78 | 77 |
79 message->raw_data.swap(ciphertext); | 78 message->raw_data.swap(ciphertext); |
80 return true; | 79 return true; |
81 } | 80 } |
82 | 81 |
83 } // namespace gcm | 82 } // namespace gcm |
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