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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ | 5 #ifndef NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ |
6 #define NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ | 6 #define NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <memory> | 10 #include <memory> |
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45 // HashAlgorithm ::= AlgorithmIdentifier{DIGEST-ALGORITHM, | 45 // HashAlgorithm ::= AlgorithmIdentifier{DIGEST-ALGORITHM, |
46 // {HashAlgorithms}} | 46 // {HashAlgorithms}} |
47 // | 47 // |
48 // HashAlgorithms DIGEST-ALGORITHM ::= { | 48 // HashAlgorithms DIGEST-ALGORITHM ::= { |
49 // { IDENTIFIER id-sha1 PARAMS TYPE NULL ARE preferredPresent } | | 49 // { IDENTIFIER id-sha1 PARAMS TYPE NULL ARE preferredPresent } | |
50 // { IDENTIFIER id-sha224 PARAMS TYPE NULL ARE preferredPresent } | | 50 // { IDENTIFIER id-sha224 PARAMS TYPE NULL ARE preferredPresent } | |
51 // { IDENTIFIER id-sha256 PARAMS TYPE NULL ARE preferredPresent } | | 51 // { IDENTIFIER id-sha256 PARAMS TYPE NULL ARE preferredPresent } | |
52 // { IDENTIFIER id-sha384 PARAMS TYPE NULL ARE preferredPresent } | | 52 // { IDENTIFIER id-sha384 PARAMS TYPE NULL ARE preferredPresent } | |
53 // { IDENTIFIER id-sha512 PARAMS TYPE NULL ARE preferredPresent } | 53 // { IDENTIFIER id-sha512 PARAMS TYPE NULL ARE preferredPresent } |
54 // } | 54 // } |
55 WARN_UNUSED_RESULT bool ParseHashAlgorithm(const der::Input input, | 55 WARN_UNUSED_RESULT bool ParseHashAlgorithm(const der::Input& input, |
56 DigestAlgorithm* out); | 56 DigestAlgorithm* out); |
57 | 57 |
58 // Base class for describing algorithm parameters. | 58 // Base class for describing algorithm parameters. |
59 class NET_EXPORT SignatureAlgorithmParameters { | 59 class NET_EXPORT SignatureAlgorithmParameters { |
60 public: | 60 public: |
61 SignatureAlgorithmParameters() {} | 61 SignatureAlgorithmParameters() {} |
62 virtual ~SignatureAlgorithmParameters(){}; | 62 virtual ~SignatureAlgorithmParameters(){}; |
63 | 63 |
64 private: | 64 private: |
65 DISALLOW_COPY_AND_ASSIGN(SignatureAlgorithmParameters); | 65 DISALLOW_COPY_AND_ASSIGN(SignatureAlgorithmParameters); |
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111 | 111 |
112 // The following methods retrieve the parameters for the signature algorithm. | 112 // The following methods retrieve the parameters for the signature algorithm. |
113 // | 113 // |
114 // The correct parameters should be chosen based on the algorithm ID. For | 114 // The correct parameters should be chosen based on the algorithm ID. For |
115 // instance a SignatureAlgorithm with |algorithm() == RsaPss| should retrieve | 115 // instance a SignatureAlgorithm with |algorithm() == RsaPss| should retrieve |
116 // parameters via ParametersForRsaPss(). | 116 // parameters via ParametersForRsaPss(). |
117 // | 117 // |
118 // The returned pointer is non-owned, and has the same lifetime as |this|. | 118 // The returned pointer is non-owned, and has the same lifetime as |this|. |
119 const RsaPssParameters* ParamsForRsaPss() const; | 119 const RsaPssParameters* ParamsForRsaPss() const; |
120 | 120 |
| 121 bool has_params() const { return !!params_; } |
| 122 |
| 123 // Returns true if |alg1_tlv| and |alg2_tlv| represent an equivalent |
| 124 // AlgorithmIdentifier once parsed. |
| 125 static bool IsEquivalent(const der::Input& alg1_tlv, |
| 126 const der::Input& alg2_tlv); |
| 127 |
121 private: | 128 private: |
122 SignatureAlgorithm(SignatureAlgorithmId algorithm, | 129 SignatureAlgorithm(SignatureAlgorithmId algorithm, |
123 DigestAlgorithm digest, | 130 DigestAlgorithm digest, |
124 std::unique_ptr<SignatureAlgorithmParameters> params); | 131 std::unique_ptr<SignatureAlgorithmParameters> params); |
125 | 132 |
126 const SignatureAlgorithmId algorithm_; | 133 const SignatureAlgorithmId algorithm_; |
127 const DigestAlgorithm digest_; | 134 const DigestAlgorithm digest_; |
128 const std::unique_ptr<SignatureAlgorithmParameters> params_; | 135 const std::unique_ptr<SignatureAlgorithmParameters> params_; |
129 | 136 |
130 DISALLOW_COPY_AND_ASSIGN(SignatureAlgorithm); | 137 DISALLOW_COPY_AND_ASSIGN(SignatureAlgorithm); |
131 }; | 138 }; |
132 | 139 |
133 } // namespace net | 140 } // namespace net |
134 | 141 |
135 #endif // NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ | 142 #endif // NET_CERT_INTERNAL_SIGNATURE_ALGORITHM_H_ |
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