/src/botan/build/include/botan/curve25519.h
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1 | | /* |
2 | | * Curve25519 |
3 | | * (C) 2014 Jack Lloyd |
4 | | * |
5 | | * Botan is released under the Simplified BSD License (see license.txt) |
6 | | */ |
7 | | |
8 | | #ifndef BOTAN_CURVE_25519_H_ |
9 | | #define BOTAN_CURVE_25519_H_ |
10 | | |
11 | | #include <botan/pk_keys.h> |
12 | | |
13 | | namespace Botan { |
14 | | |
15 | | class BOTAN_PUBLIC_API(2,0) Curve25519_PublicKey : public virtual Public_Key |
16 | | { |
17 | | public: |
18 | 17 | std::string algo_name() const override { return "Curve25519"; } |
19 | | |
20 | 0 | size_t estimated_strength() const override { return 128; } |
21 | | |
22 | 10 | size_t key_length() const override { return 255; } |
23 | | |
24 | | bool check_key(RandomNumberGenerator& rng, bool strong) const override; |
25 | | |
26 | | AlgorithmIdentifier algorithm_identifier() const override; |
27 | | |
28 | | std::vector<uint8_t> public_key_bits() const override; |
29 | | |
30 | 441 | std::vector<uint8_t> public_value() const { return m_public; } |
31 | | |
32 | | /** |
33 | | * Create a Curve25519 Public Key. |
34 | | * @param alg_id the X.509 algorithm identifier |
35 | | * @param key_bits DER encoded public key bits |
36 | | */ |
37 | | Curve25519_PublicKey(const AlgorithmIdentifier& alg_id, |
38 | | const std::vector<uint8_t>& key_bits); |
39 | | |
40 | | /** |
41 | | * Create a Curve25519 Public Key. |
42 | | * @param pub 32-byte raw public key |
43 | | */ |
44 | 10 | explicit Curve25519_PublicKey(const std::vector<uint8_t>& pub) : m_public(pub) {} Botan::Curve25519_PublicKey::Curve25519_PublicKey(std::__1::vector<unsigned char, std::__1::allocator<unsigned char> > const&) Line | Count | Source | 44 | 10 | explicit Curve25519_PublicKey(const std::vector<uint8_t>& pub) : m_public(pub) {} |
Unexecuted instantiation: Botan::Curve25519_PublicKey::Curve25519_PublicKey(std::__1::vector<unsigned char, std::__1::allocator<unsigned char> > const&) |
45 | | |
46 | | /** |
47 | | * Create a Curve25519 Public Key. |
48 | | * @param pub 32-byte raw public key |
49 | | */ |
50 | | explicit Curve25519_PublicKey(const secure_vector<uint8_t>& pub) : |
51 | 0 | m_public(pub.begin(), pub.end()) {} |
52 | | |
53 | | protected: |
54 | 469 | Curve25519_PublicKey() = default; |
55 | | std::vector<uint8_t> m_public; |
56 | | }; |
57 | | |
58 | | class BOTAN_PUBLIC_API(2,0) Curve25519_PrivateKey final : public Curve25519_PublicKey, |
59 | | public virtual Private_Key, |
60 | | public virtual PK_Key_Agreement_Key |
61 | | { |
62 | | public: |
63 | | /** |
64 | | * Construct a private key from the specified parameters. |
65 | | * @param alg_id the X.509 algorithm identifier |
66 | | * @param key_bits PKCS #8 structure |
67 | | */ |
68 | | Curve25519_PrivateKey(const AlgorithmIdentifier& alg_id, |
69 | | const secure_vector<uint8_t>& key_bits); |
70 | | |
71 | | /** |
72 | | * Generate a private key. |
73 | | * @param rng the RNG to use |
74 | | */ |
75 | | explicit Curve25519_PrivateKey(RandomNumberGenerator& rng); |
76 | | |
77 | | /** |
78 | | * Construct a private key from the specified parameters. |
79 | | * @param secret_key the private key |
80 | | */ |
81 | | explicit Curve25519_PrivateKey(const secure_vector<uint8_t>& secret_key); |
82 | | |
83 | 431 | std::vector<uint8_t> public_value() const override { return Curve25519_PublicKey::public_value(); } |
84 | | |
85 | | secure_vector<uint8_t> agree(const uint8_t w[], size_t w_len) const; |
86 | | |
87 | 0 | const secure_vector<uint8_t>& get_x() const { return m_private; } |
88 | | |
89 | | secure_vector<uint8_t> private_key_bits() const override; |
90 | | |
91 | | bool check_key(RandomNumberGenerator& rng, bool strong) const override; |
92 | | |
93 | | std::unique_ptr<PK_Ops::Key_Agreement> |
94 | | create_key_agreement_op(RandomNumberGenerator& rng, |
95 | | const std::string& params, |
96 | | const std::string& provider) const override; |
97 | | |
98 | | private: |
99 | | secure_vector<uint8_t> m_private; |
100 | | }; |
101 | | |
102 | | typedef Curve25519_PublicKey X25519_PublicKey; |
103 | | typedef Curve25519_PrivateKey X25519_PrivateKey; |
104 | | |
105 | | /* |
106 | | * The types above are just wrappers for curve25519_donna, plus defining |
107 | | * encodings for public and private keys. |
108 | | */ |
109 | | void BOTAN_PUBLIC_API(2,0) curve25519_donna(uint8_t mypublic[32], |
110 | | const uint8_t secret[32], |
111 | | const uint8_t basepoint[32]); |
112 | | |
113 | | /** |
114 | | * Exponentiate by the x25519 base point |
115 | | * @param mypublic output value |
116 | | * @param secret random scalar |
117 | | */ |
118 | | void BOTAN_PUBLIC_API(2,0) curve25519_basepoint(uint8_t mypublic[32], |
119 | | const uint8_t secret[32]); |
120 | | |
121 | | } |
122 | | |
123 | | #endif |