5111374265

Committed 29 May 2023 11:19AM UTC coverage: 92.227% (+0.5%) from 91.723%

Build # 5111374265

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push

github

Committed by

randombit

Commit Message

Next release will be 3.1.0. Update release notes

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83.33

/src/lib/pubkey/dsa/dsa.h

/*
* DSA
* (C) 1999-2010,2023 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#ifndef BOTAN_DSA_H_
#define BOTAN_DSA_H_

#include <botan/pk_keys.h>
#include <memory>

namespace Botan {

class BigInt;
class DL_Group;
class DL_PublicKey;
class DL_PrivateKey;

/**
* DSA Public Key
*/
class BOTAN_PUBLIC_API(2, 0) DSA_PublicKey : public virtual Public_Key {
   public:
      bool supports_operation(PublicKeyOperation op) const override { return (op == PublicKeyOperation::Signature); }

      /**
      * Load a public key from the ASN.1 encoding
      * @param alg_id the X.509 algorithm identifier
      * @param key_bits DER encoded public key bits
      */
      DSA_PublicKey(const AlgorithmIdentifier& alg_id, std::span<const uint8_t> key_bits);

      /**
      * Load a public key from the integer value
      * @param group the underlying DL group
      * @param y the public value y = g^x mod p
      */
      DSA_PublicKey(const DL_Group& group, const BigInt& y);

      std::string algo_name() const override { return "DSA"; }

      size_t message_parts() const override { return 2; }

      size_t message_part_size() const override;

      AlgorithmIdentifier algorithm_identifier() const override;
      std::vector<uint8_t> public_key_bits() const override;

      bool check_key(RandomNumberGenerator& rng, bool strong) const override;

      size_t estimated_strength() const override;
      size_t key_length() const override;

      const BigInt& get_int_field(std::string_view field) const override;

      std::unique_ptr<PK_Ops::Verification> create_verification_op(std::string_view params,
                                                                   std::string_view provider) const override;

      std::unique_ptr<PK_Ops::Verification> create_x509_verification_op(const AlgorithmIdentifier& signature_algorithm,
                                                                        std::string_view provider) const override;

   private:
      friend class DSA_PrivateKey;

      DSA_PublicKey() = default;

      DSA_PublicKey(std::shared_ptr<const DL_PublicKey> key) : m_public_key(key) {}

      std::shared_ptr<const DL_PublicKey> m_public_key;
};

/**
* DSA Private Key
*/

BOTAN_DIAGNOSTIC_PUSH
BOTAN_DIAGNOSTIC_IGNORE_INHERITED_VIA_DOMINANCE

class BOTAN_PUBLIC_API(2, 0) DSA_PrivateKey final : public DSA_PublicKey,
                                                    public virtual Private_Key {
   public:
      /**
      * Load a private key from the ASN.1 encoding
      * @param alg_id the X.509 algorithm identifier
      * @param key_bits DER encoded key bits in ANSI X9.57 format
      */
      DSA_PrivateKey(const AlgorithmIdentifier& alg_id, std::span<const uint8_t> key_bits);

      /**
      * Create a new private key.
      * @param group the underlying DL group
      * @param rng the RNG to use
      */
      DSA_PrivateKey(RandomNumberGenerator& rng, const DL_Group& group);

      /**
      * Load a private key
      * @param group the underlying DL group
      * @param private_key the private key
      */
      DSA_PrivateKey(const DL_Group& group, const BigInt& private_key);

      std::unique_ptr<Public_Key> public_key() const override;

      bool check_key(RandomNumberGenerator& rng, bool strong) const override;

      secure_vector<uint8_t> private_key_bits() const override;

      const BigInt& get_int_field(std::string_view field) const override;
      secure_vector<uint8_t> raw_private_key_bits() const override;

      std::unique_ptr<PK_Ops::Signature> create_signature_op(RandomNumberGenerator& rng,
                                                             std::string_view params,
                                                             std::string_view provider) const override;

   private:
      std::shared_ptr<const DL_PrivateKey> m_private_key;
};

BOTAN_DIAGNOSTIC_POP

}  // namespace Botan

#endif

1	/*
2	* DSA
3	* (C) 1999-2010,2023 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#ifndef BOTAN_DSA_H_
9	#define BOTAN_DSA_H_
10
11	#include <botan/pk_keys.h>
12	#include <memory>
13
14	namespace Botan {
15
16	class BigInt;
17	class DL_Group;
18	class DL_PublicKey;
19	class DL_PrivateKey;
20
21	/**
22	* DSA Public Key
23	*/
24	class BOTAN_PUBLIC_API(2, 0) DSA_PublicKey : public virtual Public_Key {
25	public:
26	bool supports_operation(PublicKeyOperation op) const override { return (op == PublicKeyOperation::Signature); }	558✔
27
28	/**
29	* Load a public key from the ASN.1 encoding
30	* @param alg_id the X.509 algorithm identifier
31	* @param key_bits DER encoded public key bits
32	*/
33	DSA_PublicKey(const AlgorithmIdentifier& alg_id, std::span<const uint8_t> key_bits);
34
35	/**
36	* Load a public key from the integer value
37	* @param group the underlying DL group
38	* @param y the public value y = g^x mod p
39	*/
40	DSA_PublicKey(const DL_Group& group, const BigInt& y);
41
42	std::string algo_name() const override { return "DSA"; }	1,190✔
43
44	size_t message_parts() const override { return 2; }	518✔
45
46	size_t message_part_size() const override;
47
48	AlgorithmIdentifier algorithm_identifier() const override;
49	std::vector<uint8_t> public_key_bits() const override;
50
51	bool check_key(RandomNumberGenerator& rng, bool strong) const override;
52
53	size_t estimated_strength() const override;
54	size_t key_length() const override;
55
56	const BigInt& get_int_field(std::string_view field) const override;
57
58	std::unique_ptr<PK_Ops::Verification> create_verification_op(std::string_view params,
59	std::string_view provider) const override;
60
61	std::unique_ptr<PK_Ops::Verification> create_x509_verification_op(const AlgorithmIdentifier& signature_algorithm,
62	std::string_view provider) const override;
63
64	private:
65	friend class DSA_PrivateKey;
66
67	DSA_PublicKey() = default;	551✔
68
69	DSA_PublicKey(std::shared_ptr<const DL_PublicKey> key) : m_public_key(key) {}	305✔
70
71	std::shared_ptr<const DL_PublicKey> m_public_key;
72	};
73
74	/**
75	* DSA Private Key
76	*/
77
78	BOTAN_DIAGNOSTIC_PUSH
79	BOTAN_DIAGNOSTIC_IGNORE_INHERITED_VIA_DOMINANCE
80
81	class BOTAN_PUBLIC_API(2, 0) DSA_PrivateKey final : public DSA_PublicKey,	×
82	public virtual Private_Key {
83	public:
84	/**
85	* Load a private key from the ASN.1 encoding
86	* @param alg_id the X.509 algorithm identifier
87	* @param key_bits DER encoded key bits in ANSI X9.57 format
88	*/
89	DSA_PrivateKey(const AlgorithmIdentifier& alg_id, std::span<const uint8_t> key_bits);
90
91	/**
92	* Create a new private key.
93	* @param group the underlying DL group
94	* @param rng the RNG to use
95	*/
96	DSA_PrivateKey(RandomNumberGenerator& rng, const DL_Group& group);
97
98	/**
99	* Load a private key
100	* @param group the underlying DL group
101	* @param private_key the private key
102	*/
103	DSA_PrivateKey(const DL_Group& group, const BigInt& private_key);
104
105	std::unique_ptr<Public_Key> public_key() const override;
106
107	bool check_key(RandomNumberGenerator& rng, bool strong) const override;
108
109	secure_vector<uint8_t> private_key_bits() const override;
110
111	const BigInt& get_int_field(std::string_view field) const override;
112	secure_vector<uint8_t> raw_private_key_bits() const override;
113
114	std::unique_ptr<PK_Ops::Signature> create_signature_op(RandomNumberGenerator& rng,
115	std::string_view params,
116	std::string_view provider) const override;
117
118	private:
119	std::shared_ptr<const DL_PrivateKey> m_private_key;
120	};
121
122	BOTAN_DIAGNOSTIC_POP
123
124	} // namespace Botan
125
126	#endif

randombit / botan / 5111374265

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