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_OPENSSL_AES_OPENSSL_H_ 6 #define CONTENT_CHILD_WEBCRYPTO_OPENSSL_AES_OPENSSL_H_ 7 8 #include "content/child/webcrypto/algorithm_implementation.h" 9 10 namespace content { 11 12 namespace webcrypto { 13 14 // Base class for AES algorithms that provides the implementation for key 15 // creation and export. 16 class AesAlgorithm : public AlgorithmImplementation { 17 public: 18 // |all_key_usages| is the set of all WebCrypto key usages that are 19 // allowed for imported or generated keys. |jwk_suffix| is the suffix 20 // used when constructing JWK names for the algorithm. For instance A128CBC 21 // is the JWK name for 128-bit AES-CBC. The |jwk_suffix| in this case would 22 // be "CBC". 23 AesAlgorithm(blink::WebCryptoKeyUsageMask all_key_usages, 24 const std::string& jwk_suffix); 25 26 // This is the same as the other AesAlgorithm constructor where 27 // |all_key_usages| is pre-filled to values for encryption/decryption 28 // algorithms (supports usages for: encrypt, decrypt, wrap, unwrap). 29 explicit AesAlgorithm(const std::string& jwk_suffix); 30 31 virtual Status VerifyKeyUsagesBeforeGenerateKey( 32 blink::WebCryptoKeyUsageMask usage_mask) const OVERRIDE; 33 34 virtual Status GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm, 35 bool extractable, 36 blink::WebCryptoKeyUsageMask usage_mask, 37 blink::WebCryptoKey* key) const OVERRIDE; 38 39 virtual Status VerifyKeyUsagesBeforeImportKey( 40 blink::WebCryptoKeyFormat format, 41 blink::WebCryptoKeyUsageMask usage_mask) const OVERRIDE; 42 43 virtual Status ImportKeyRaw(const CryptoData& key_data, 44 const blink::WebCryptoAlgorithm& algorithm, 45 bool extractable, 46 blink::WebCryptoKeyUsageMask usage_mask, 47 blink::WebCryptoKey* key) const OVERRIDE; 48 49 virtual Status ImportKeyJwk(const CryptoData& key_data, 50 const blink::WebCryptoAlgorithm& algorithm, 51 bool extractable, 52 blink::WebCryptoKeyUsageMask usage_mask, 53 blink::WebCryptoKey* key) const OVERRIDE; 54 55 virtual Status ExportKeyRaw(const blink::WebCryptoKey& key, 56 std::vector<uint8_t>* buffer) const OVERRIDE; 57 58 virtual Status ExportKeyJwk(const blink::WebCryptoKey& key, 59 std::vector<uint8_t>* buffer) const OVERRIDE; 60 61 private: 62 const blink::WebCryptoKeyUsageMask all_key_usages_; 63 const std::string jwk_suffix_; 64 }; 65 66 } // namespace webcrypto 67 68 } // namespace content 69 70 #endif // CONTENT_CHILD_WEBCRYPTO_OPENSSL_AES_OPENSSL_H_ 71
