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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "net/quic/crypto/chacha20_poly1305_encrypter.h" | 5 #include "net/quic/crypto/chacha20_poly1305_encrypter.h" |
| 6 | 6 |
| 7 #include <pk11pub.h> | 7 #include <pk11pub.h> |
| 8 | 8 |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 | 10 |
| 11 using base::StringPiece; | 11 using base::StringPiece; |
| 12 | 12 |
| 13 namespace net { | 13 namespace net { |
| 14 | 14 |
| 15 namespace { | 15 namespace { |
| 16 | 16 |
| 17 const size_t kKeySize = 32; | 17 const size_t kKeySize = 32; |
| 18 const size_t kNoncePrefixSize = 0; | 18 const size_t kNoncePrefixSize = 0; |
| 19 | 19 |
| 20 } // namespace | 20 } // namespace |
| 21 | 21 |
| 22 #if defined(USE_NSS) | 22 #if defined(USE_NSS_CERTS) |
| 23 | 23 |
| 24 // System NSS doesn't support ChaCha20+Poly1305 yet. | 24 // System NSS doesn't support ChaCha20+Poly1305 yet. |
| 25 | 25 |
| 26 ChaCha20Poly1305Encrypter::ChaCha20Poly1305Encrypter() | 26 ChaCha20Poly1305Encrypter::ChaCha20Poly1305Encrypter() |
| 27 : AeadBaseEncrypter(CKM_INVALID_MECHANISM, nullptr, kKeySize, | 27 : AeadBaseEncrypter(CKM_INVALID_MECHANISM, nullptr, kKeySize, |
| 28 kAuthTagSize, kNoncePrefixSize) { | 28 kAuthTagSize, kNoncePrefixSize) { |
| 29 NOTIMPLEMENTED(); | 29 NOTIMPLEMENTED(); |
| 30 } | 30 } |
| 31 | 31 |
| 32 ChaCha20Poly1305Encrypter::~ChaCha20Poly1305Encrypter() {} | 32 ChaCha20Poly1305Encrypter::~ChaCha20Poly1305Encrypter() {} |
| 33 | 33 |
| 34 // static | 34 // static |
| 35 bool ChaCha20Poly1305Encrypter::IsSupported() { | 35 bool ChaCha20Poly1305Encrypter::IsSupported() { |
| 36 return false; | 36 return false; |
| 37 } | 37 } |
| 38 | 38 |
| 39 void ChaCha20Poly1305Encrypter::FillAeadParams(StringPiece nonce, | 39 void ChaCha20Poly1305Encrypter::FillAeadParams(StringPiece nonce, |
| 40 StringPiece associated_data, | 40 StringPiece associated_data, |
| 41 size_t auth_tag_size, | 41 size_t auth_tag_size, |
| 42 AeadParams* aead_params) const { | 42 AeadParams* aead_params) const { |
| 43 NOTIMPLEMENTED(); | 43 NOTIMPLEMENTED(); |
| 44 } | 44 } |
| 45 | 45 |
| 46 #else // defined(USE_NSS) | 46 #else // defined(USE_NSS_CERTS) |
| 47 | 47 |
| 48 ChaCha20Poly1305Encrypter::ChaCha20Poly1305Encrypter() | 48 ChaCha20Poly1305Encrypter::ChaCha20Poly1305Encrypter() |
| 49 : AeadBaseEncrypter(CKM_NSS_CHACHA20_POLY1305, PK11_Encrypt, kKeySize, | 49 : AeadBaseEncrypter(CKM_NSS_CHACHA20_POLY1305, PK11_Encrypt, kKeySize, |
| 50 kAuthTagSize, kNoncePrefixSize) { | 50 kAuthTagSize, kNoncePrefixSize) { |
| 51 static_assert(kKeySize <= kMaxKeySize, "key size too big"); | 51 static_assert(kKeySize <= kMaxKeySize, "key size too big"); |
| 52 static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, | 52 static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize, |
| 53 "nonce prefix size too big"); | 53 "nonce prefix size too big"); |
| 54 } | 54 } |
| 55 | 55 |
| 56 ChaCha20Poly1305Encrypter::~ChaCha20Poly1305Encrypter() {} | 56 ChaCha20Poly1305Encrypter::~ChaCha20Poly1305Encrypter() {} |
| (...skipping 11 matching lines...) Expand all Loading... |
| 68 CK_NSS_AEAD_PARAMS* nss_aead_params = &aead_params->data.nss_aead_params; | 68 CK_NSS_AEAD_PARAMS* nss_aead_params = &aead_params->data.nss_aead_params; |
| 69 nss_aead_params->pIv = | 69 nss_aead_params->pIv = |
| 70 reinterpret_cast<CK_BYTE*>(const_cast<char*>(nonce.data())); | 70 reinterpret_cast<CK_BYTE*>(const_cast<char*>(nonce.data())); |
| 71 nss_aead_params->ulIvLen = nonce.size(); | 71 nss_aead_params->ulIvLen = nonce.size(); |
| 72 nss_aead_params->pAAD = | 72 nss_aead_params->pAAD = |
| 73 reinterpret_cast<CK_BYTE*>(const_cast<char*>(associated_data.data())); | 73 reinterpret_cast<CK_BYTE*>(const_cast<char*>(associated_data.data())); |
| 74 nss_aead_params->ulAADLen = associated_data.size(); | 74 nss_aead_params->ulAADLen = associated_data.size(); |
| 75 nss_aead_params->ulTagLen = auth_tag_size; | 75 nss_aead_params->ulTagLen = auth_tag_size; |
| 76 } | 76 } |
| 77 | 77 |
| 78 #endif // defined(USE_NSS) | 78 #endif // defined(USE_NSS_CERTS) |
| 79 | 79 |
| 80 } // namespace net | 80 } // namespace net |
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