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.
5 #include "content/child/webcrypto/algorithm_registry.h"
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"
18 // This class is used as a singleton. All methods must be threadsafe.
19 class AlgorithmRegistry {
22 : sha_(CreatePlatformShaImplementation()),
23 aes_gcm_(CreatePlatformAesGcmImplementation()),
24 aes_cbc_(CreatePlatformAesCbcImplementation()),
25 aes_ctr_(CreatePlatformAesCtrImplementation()),
26 aes_kw_(CreatePlatformAesKwImplementation()),
27 hmac_(CreatePlatformHmacImplementation()),
28 rsa_ssa_(CreatePlatformRsaSsaImplementation()),
29 rsa_oaep_(CreatePlatformRsaOaepImplementation()) {
33 const AlgorithmImplementation* GetAlgorithm(
34 blink::WebCryptoAlgorithmId id) const {
36 case blink::WebCryptoAlgorithmIdSha1:
37 case blink::WebCryptoAlgorithmIdSha256:
38 case blink::WebCryptoAlgorithmIdSha384:
39 case blink::WebCryptoAlgorithmIdSha512:
41 case blink::WebCryptoAlgorithmIdAesGcm:
42 return aes_gcm_.get();
43 case blink::WebCryptoAlgorithmIdAesCbc:
44 return aes_cbc_.get();
45 case blink::WebCryptoAlgorithmIdAesCtr:
46 return aes_ctr_.get();
47 case blink::WebCryptoAlgorithmIdAesKw:
49 case blink::WebCryptoAlgorithmIdHmac:
51 case blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5:
52 return rsa_ssa_.get();
53 case blink::WebCryptoAlgorithmIdRsaOaep:
54 return rsa_oaep_.get();
61 const scoped_ptr<AlgorithmImplementation> sha_;
62 const scoped_ptr<AlgorithmImplementation> aes_gcm_;
63 const scoped_ptr<AlgorithmImplementation> aes_cbc_;
64 const scoped_ptr<AlgorithmImplementation> aes_ctr_;
65 const scoped_ptr<AlgorithmImplementation> aes_kw_;
66 const scoped_ptr<AlgorithmImplementation> hmac_;
67 const scoped_ptr<AlgorithmImplementation> rsa_ssa_;
68 const scoped_ptr<AlgorithmImplementation> rsa_oaep_;
73 base::LazyInstance<AlgorithmRegistry>::Leaky g_algorithm_registry =
74 LAZY_INSTANCE_INITIALIZER;
76 Status GetAlgorithmImplementation(blink::WebCryptoAlgorithmId id,
77 const AlgorithmImplementation** impl) {
78 *impl = g_algorithm_registry.Get().GetAlgorithm(id);
80 return Status::Success();
81 return Status::ErrorUnsupported();
84 } // namespace webcrypto
86 } // namespace content