| [email protected] | 38409aec | 2014-07-19 00:54:51 | [diff] [blame^] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "content/child/webcrypto/algorithm_registry.h" |
| 6 | |
| 7 | #include "base/lazy_instance.h" |
| 8 | #include "content/child/webcrypto/algorithm_implementation.h" |
| 9 | #include "content/child/webcrypto/platform_crypto.h" |
| 10 | #include "content/child/webcrypto/status.h" |
| 11 | |
| 12 | namespace content { |
| 13 | |
| 14 | namespace webcrypto { |
| 15 | |
| 16 | namespace { |
| 17 | |
| 18 | class AlgorithmRegistry { |
| 19 | public: |
| 20 | AlgorithmRegistry() |
| 21 | : sha_(CreatePlatformShaImplementation()), |
| 22 | aes_gcm_(CreatePlatformAesGcmImplementation()), |
| 23 | aes_cbc_(CreatePlatformAesCbcImplementation()), |
| 24 | aes_kw_(CreatePlatformAesKwImplementation()), |
| 25 | hmac_(CreatePlatformHmacImplementation()), |
| 26 | rsa_ssa_(CreatePlatformRsaSsaImplementation()), |
| 27 | rsa_oaep_(CreatePlatformRsaOaepImplementation()) { |
| 28 | PlatformInit(); |
| 29 | } |
| 30 | |
| 31 | const AlgorithmImplementation* GetAlgorithm( |
| 32 | blink::WebCryptoAlgorithmId id) const { |
| 33 | switch (id) { |
| 34 | case blink::WebCryptoAlgorithmIdSha1: |
| 35 | case blink::WebCryptoAlgorithmIdSha256: |
| 36 | case blink::WebCryptoAlgorithmIdSha384: |
| 37 | case blink::WebCryptoAlgorithmIdSha512: |
| 38 | return sha_.get(); |
| 39 | case blink::WebCryptoAlgorithmIdAesGcm: |
| 40 | return aes_gcm_.get(); |
| 41 | case blink::WebCryptoAlgorithmIdAesCbc: |
| 42 | return aes_cbc_.get(); |
| 43 | case blink::WebCryptoAlgorithmIdAesKw: |
| 44 | return aes_kw_.get(); |
| 45 | case blink::WebCryptoAlgorithmIdHmac: |
| 46 | return hmac_.get(); |
| 47 | case blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5: |
| 48 | return rsa_ssa_.get(); |
| 49 | case blink::WebCryptoAlgorithmIdRsaOaep: |
| 50 | return rsa_oaep_.get(); |
| 51 | default: |
| 52 | return NULL; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | private: |
| 57 | scoped_ptr<AlgorithmImplementation> sha_; |
| 58 | scoped_ptr<AlgorithmImplementation> aes_gcm_; |
| 59 | scoped_ptr<AlgorithmImplementation> aes_cbc_; |
| 60 | scoped_ptr<AlgorithmImplementation> aes_kw_; |
| 61 | scoped_ptr<AlgorithmImplementation> hmac_; |
| 62 | scoped_ptr<AlgorithmImplementation> rsa_ssa_; |
| 63 | scoped_ptr<AlgorithmImplementation> rsa_oaep_; |
| 64 | }; |
| 65 | |
| 66 | } // namespace |
| 67 | |
| 68 | base::LazyInstance<AlgorithmRegistry>::Leaky g_algorithm_registry = |
| 69 | LAZY_INSTANCE_INITIALIZER; |
| 70 | |
| 71 | Status GetAlgorithmImplementation(blink::WebCryptoAlgorithmId id, |
| 72 | const AlgorithmImplementation** impl) { |
| 73 | *impl = g_algorithm_registry.Get().GetAlgorithm(id); |
| 74 | if (*impl) |
| 75 | return Status::Success(); |
| 76 | return Status::ErrorUnsupported(); |
| 77 | } |
| 78 | |
| 79 | } // namespace webcrypto |
| 80 | |
| 81 | } // namespace content |
