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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 #ifndef CONTENT_CHILD_WEBCRYPTO_NSS_AES_ALGORITHM_NSS_H_ | |
6 #define CONTENT_CHILD_WEBCRYPTO_NSS_AES_ALGORITHM_NSS_H_ | |
7 | |
8 #include <pkcs11t.h> | |
9 | |
10 #include "content/child/webcrypto/algorithm_implementation.h" | |
11 | |
12 namespace content { | |
13 | |
14 namespace webcrypto { | |
15 | |
16 // Base class for AES algorithms that provides the implementation for key | |
17 // creation and export. | |
18 class AesAlgorithm : public AlgorithmImplementation { | |
19 public: | |
20 // Constructs an AES algorithm whose keys will be imported using the NSS | |
21 // mechanism |import_mechanism|. | |
22 // |all_key_usages| is the set of all WebCrypto key usages that are | |
23 // allowed for imported or generated keys. |jwk_suffix| is the suffix | |
24 // used when constructing JWK names for the algorithm. For instance A128CBC | |
25 // is the JWK name for 128-bit AES-CBC. The |jwk_suffix| in this case would | |
26 // be "CBC". | |
27 AesAlgorithm(CK_MECHANISM_TYPE import_mechanism, | |
28 blink::WebCryptoKeyUsageMask all_key_usages, | |
29 const std::string& jwk_suffix); | |
30 | |
31 // This is the same as the other AesAlgorithm constructor, however | |
32 // |all_key_usages| is pre-filled with values for encryption/decryption | |
33 // algorithms (supports usages for: encrypt, decrypt, wrap, unwrap). | |
34 AesAlgorithm(CK_MECHANISM_TYPE import_mechanism, | |
35 const std::string& jwk_suffix); | |
36 | |
37 Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm, | |
38 bool extractable, | |
39 blink::WebCryptoKeyUsageMask usages, | |
40 GenerateKeyResult* result) const override; | |
41 | |
42 Status VerifyKeyUsagesBeforeImportKey( | |
43 blink::WebCryptoKeyFormat format, | |
44 blink::WebCryptoKeyUsageMask usages) const override; | |
45 | |
46 Status ImportKeyRaw(const CryptoData& key_data, | |
47 const blink::WebCryptoAlgorithm& algorithm, | |
48 bool extractable, | |
49 blink::WebCryptoKeyUsageMask usages, | |
50 blink::WebCryptoKey* key) const override; | |
51 | |
52 Status ImportKeyJwk(const CryptoData& key_data, | |
53 const blink::WebCryptoAlgorithm& algorithm, | |
54 bool extractable, | |
55 blink::WebCryptoKeyUsageMask usages, | |
56 blink::WebCryptoKey* key) const override; | |
57 | |
58 Status ExportKeyRaw(const blink::WebCryptoKey& key, | |
59 std::vector<uint8_t>* buffer) const override; | |
60 | |
61 Status ExportKeyJwk(const blink::WebCryptoKey& key, | |
62 std::vector<uint8_t>* buffer) const override; | |
63 | |
64 Status SerializeKeyForClone( | |
65 const blink::WebCryptoKey& key, | |
66 blink::WebVector<uint8_t>* key_data) const override; | |
67 | |
68 Status DeserializeKeyForClone(const blink::WebCryptoKeyAlgorithm& algorithm, | |
69 blink::WebCryptoKeyType type, | |
70 bool extractable, | |
71 blink::WebCryptoKeyUsageMask usages, | |
72 const CryptoData& key_data, | |
73 blink::WebCryptoKey* key) const override; | |
74 | |
75 Status GetKeyLength(const blink::WebCryptoAlgorithm& key_length_algorithm, | |
76 bool* has_length_bits, | |
77 unsigned int* length_bits) const override; | |
78 | |
79 private: | |
80 const CK_MECHANISM_TYPE import_mechanism_; | |
81 const blink::WebCryptoKeyUsageMask all_key_usages_; | |
82 const std::string jwk_suffix_; | |
83 }; | |
84 | |
85 } // namespace webcrypto | |
86 | |
87 } // namespace content | |
88 | |
89 #endif // CONTENT_CHILD_WEBCRYPTO_NSS_AES_ALGORITHM_NSS_H_ | |
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