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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 #ifndef CONTENT_CHILD_WEBCRYPTO_JWK_H_ | 5 #ifndef CONTENT_CHILD_WEBCRYPTO_JWK_H_ |
| 6 #define CONTENT_CHILD_WEBCRYPTO_JWK_H_ | 6 #define CONTENT_CHILD_WEBCRYPTO_JWK_H_ |
| 7 | 7 |
| 8 #include <stdint.h> |
| 8 #include <vector> | 9 #include <vector> |
| 9 | 10 |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/values.h" | 11 #include "base/values.h" |
| 12 #include "third_party/WebKit/public/platform/WebArrayBuffer.h" | 12 #include "third_party/WebKit/public/platform/WebArrayBuffer.h" |
| 13 #include "third_party/WebKit/public/platform/WebCrypto.h" | 13 #include "third_party/WebKit/public/platform/WebCrypto.h" |
| 14 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h" | 14 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h" |
| 15 | 15 |
| 16 namespace content { | 16 namespace content { |
| 17 | 17 |
| 18 namespace webcrypto { | 18 namespace webcrypto { |
| 19 | 19 |
| 20 class CryptoData; | 20 class CryptoData; |
| 21 class Status; | 21 class Status; |
| 22 | 22 |
| 23 // Writes a JWK-formatted symmetric key to |jwk_key_data|. | 23 // Writes a JWK-formatted symmetric key to |jwk_key_data|. |
| 24 // * raw_key_data: The actual key data | 24 // * raw_key_data: The actual key data |
| 25 // * algorithm: The JWK algorithm name (i.e. "alg") | 25 // * algorithm: The JWK algorithm name (i.e. "alg") |
| 26 // * extractable: The JWK extractability (i.e. "ext") | 26 // * extractable: The JWK extractability (i.e. "ext") |
| 27 // * usage_mask: The JWK usages (i.e. "key_ops") | 27 // * usage_mask: The JWK usages (i.e. "key_ops") |
| 28 void WriteSecretKeyJwk(const CryptoData& raw_key_data, | 28 void WriteSecretKeyJwk(const CryptoData& raw_key_data, |
| 29 const std::string& algorithm, | 29 const std::string& algorithm, |
| 30 bool extractable, | 30 bool extractable, |
| 31 blink::WebCryptoKeyUsageMask usage_mask, | 31 blink::WebCryptoKeyUsageMask usage_mask, |
| 32 std::vector<uint8>* jwk_key_data); | 32 std::vector<uint8_t>* jwk_key_data); |
| 33 | 33 |
| 34 // Parses a UTF-8 encoded JWK (key_data), and extracts the key material to | 34 // Parses a UTF-8 encoded JWK (key_data), and extracts the key material to |
| 35 // |*raw_key_data|. Returns Status::Success() on success, otherwise an error. | 35 // |*raw_key_data|. Returns Status::Success() on success, otherwise an error. |
| 36 // In order for this to succeed: | 36 // In order for this to succeed: |
| 37 // * expected_algorithm must match the JWK's "alg", if present. | 37 // * expected_algorithm must match the JWK's "alg", if present. |
| 38 // * expected_extractable must be consistent with the JWK's "ext", if | 38 // * expected_extractable must be consistent with the JWK's "ext", if |
| 39 // present. | 39 // present. |
| 40 // * expected_usage_mask must be a subset of the JWK's "key_ops" if present. | 40 // * expected_usage_mask must be a subset of the JWK's "key_ops" if present. |
| 41 Status ReadSecretKeyJwk(const CryptoData& key_data, | 41 Status ReadSecretKeyJwk(const CryptoData& key_data, |
| 42 const std::string& expected_algorithm, | 42 const std::string& expected_algorithm, |
| 43 bool expected_extractable, | 43 bool expected_extractable, |
| 44 blink::WebCryptoKeyUsageMask expected_usage_mask, | 44 blink::WebCryptoKeyUsageMask expected_usage_mask, |
| 45 std::vector<uint8>* raw_key_data); | 45 std::vector<uint8_t>* raw_key_data); |
| 46 | 46 |
| 47 // Creates an AES algorithm name for the given key size (in bytes). For | 47 // Creates an AES algorithm name for the given key size (in bytes). For |
| 48 // instance "A128CBC" is the result of suffix="CBC", keylen_bytes=16. | 48 // instance "A128CBC" is the result of suffix="CBC", keylen_bytes=16. |
| 49 std::string MakeJwkAesAlgorithmName(const std::string& suffix, | 49 std::string MakeJwkAesAlgorithmName(const std::string& suffix, |
| 50 unsigned int keylen_bytes); | 50 unsigned int keylen_bytes); |
| 51 | 51 |
| 52 // This is very similar to ReadSecretKeyJwk(), except instead of specifying an | 52 // This is very similar to ReadSecretKeyJwk(), except instead of specifying an |
| 53 // absolut "expected_algorithm", the suffix for an AES algorithm name is given | 53 // absolut "expected_algorithm", the suffix for an AES algorithm name is given |
| 54 // (See MakeJwkAesAlgorithmName() for an explanation of what the suffix is). | 54 // (See MakeJwkAesAlgorithmName() for an explanation of what the suffix is). |
| 55 // | 55 // |
| 56 // This is because the algorithm name for AES keys is dependent on the length | 56 // This is because the algorithm name for AES keys is dependent on the length |
| 57 // of the key. This function expects key lengths to be either 128, 192, or 256 | 57 // of the key. This function expects key lengths to be either 128, 192, or 256 |
| 58 // bits. | 58 // bits. |
| 59 Status ReadAesSecretKeyJwk(const CryptoData& key_data, | 59 Status ReadAesSecretKeyJwk(const CryptoData& key_data, |
| 60 const std::string& algorithm_name_suffix, | 60 const std::string& algorithm_name_suffix, |
| 61 bool expected_extractable, | 61 bool expected_extractable, |
| 62 blink::WebCryptoKeyUsageMask expected_usage_mask, | 62 blink::WebCryptoKeyUsageMask expected_usage_mask, |
| 63 std::vector<uint8>* raw_key_data); | 63 std::vector<uint8_t>* raw_key_data); |
| 64 | 64 |
| 65 // Writes a JWK-formated RSA public key and saves the result to | 65 // Writes a JWK-formated RSA public key and saves the result to |
| 66 // |*jwk_key_data|. | 66 // |*jwk_key_data|. |
| 67 void WriteRsaPublicKeyJwk(const CryptoData& n, | 67 void WriteRsaPublicKeyJwk(const CryptoData& n, |
| 68 const CryptoData& e, | 68 const CryptoData& e, |
| 69 const std::string& algorithm, | 69 const std::string& algorithm, |
| 70 bool extractable, | 70 bool extractable, |
| 71 blink::WebCryptoKeyUsageMask usage_mask, | 71 blink::WebCryptoKeyUsageMask usage_mask, |
| 72 std::vector<uint8>* jwk_key_data); | 72 std::vector<uint8_t>* jwk_key_data); |
| 73 | 73 |
| 74 // Writes a JWK-formated RSA private key and saves the result to | 74 // Writes a JWK-formated RSA private key and saves the result to |
| 75 // |*jwk_key_data|. | 75 // |*jwk_key_data|. |
| 76 void WriteRsaPrivateKeyJwk(const CryptoData& n, | 76 void WriteRsaPrivateKeyJwk(const CryptoData& n, |
| 77 const CryptoData& e, | 77 const CryptoData& e, |
| 78 const CryptoData& d, | 78 const CryptoData& d, |
| 79 const CryptoData& p, | 79 const CryptoData& p, |
| 80 const CryptoData& q, | 80 const CryptoData& q, |
| 81 const CryptoData& dp, | 81 const CryptoData& dp, |
| 82 const CryptoData& dq, | 82 const CryptoData& dq, |
| 83 const CryptoData& qi, | 83 const CryptoData& qi, |
| 84 const std::string& algorithm, | 84 const std::string& algorithm, |
| 85 bool extractable, | 85 bool extractable, |
| 86 blink::WebCryptoKeyUsageMask usage_mask, | 86 blink::WebCryptoKeyUsageMask usage_mask, |
| 87 std::vector<uint8>* jwk_key_data); | 87 std::vector<uint8_t>* jwk_key_data); |
| 88 | 88 |
| 89 // Describes the RSA components for a parsed key. The names of the properties | 89 // Describes the RSA components for a parsed key. The names of the properties |
| 90 // correspond with those from the JWK spec. Note that Chromium's WebCrypto | 90 // correspond with those from the JWK spec. Note that Chromium's WebCrypto |
| 91 // implementation does not support multi-primes, so there is no parsed field | 91 // implementation does not support multi-primes, so there is no parsed field |
| 92 // for othinfo. | 92 // for othinfo. |
| 93 struct JwkRsaInfo { | 93 struct JwkRsaInfo { |
| 94 JwkRsaInfo(); | 94 JwkRsaInfo(); |
| 95 ~JwkRsaInfo(); | 95 ~JwkRsaInfo(); |
| 96 | 96 |
| 97 bool is_private_key; | 97 bool is_private_key; |
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| 118 blink::WebCryptoKeyUsageMask expected_usage_mask, | 118 blink::WebCryptoKeyUsageMask expected_usage_mask, |
| 119 JwkRsaInfo* result); | 119 JwkRsaInfo* result); |
| 120 | 120 |
| 121 const char* GetJwkHmacAlgorithmName(blink::WebCryptoAlgorithmId hash); | 121 const char* GetJwkHmacAlgorithmName(blink::WebCryptoAlgorithmId hash); |
| 122 | 122 |
| 123 } // namespace webcrypto | 123 } // namespace webcrypto |
| 124 | 124 |
| 125 } // namespace content | 125 } // namespace content |
| 126 | 126 |
| 127 #endif // CONTENT_CHILD_WEBCRYPTO_JWK_H_ | 127 #endif // CONTENT_CHILD_WEBCRYPTO_JWK_H_ |
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