diff options
author | lloyd <[email protected]> | 2014-01-10 03:41:59 +0000 |
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committer | lloyd <[email protected]> | 2014-01-10 03:41:59 +0000 |
commit | 6894dca64c04936d07048c0e8cbf7e25858548c3 (patch) | |
tree | 5d572bfde9fe667dab14e3f04b5285a85d8acd95 /src/lib/pubkey/dl_algo/dl_algo.h | |
parent | 9efa3be92442afb3d0b69890a36c7f122df18eda (diff) |
Move lib into src
Diffstat (limited to 'src/lib/pubkey/dl_algo/dl_algo.h')
-rw-r--r-- | src/lib/pubkey/dl_algo/dl_algo.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/lib/pubkey/dl_algo/dl_algo.h b/src/lib/pubkey/dl_algo/dl_algo.h new file mode 100644 index 000000000..abd2acba4 --- /dev/null +++ b/src/lib/pubkey/dl_algo/dl_algo.h @@ -0,0 +1,116 @@ +/* +* DL Scheme +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_DL_ALGO_H__ +#define BOTAN_DL_ALGO_H__ + +#include <botan/dl_group.h> +#include <botan/x509_key.h> +#include <botan/pkcs8.h> + +namespace Botan { + +/** +* This class represents discrete logarithm (DL) public keys. +*/ +class BOTAN_DLL DL_Scheme_PublicKey : public virtual Public_Key + { + public: + bool check_key(RandomNumberGenerator& rng, bool) const; + + AlgorithmIdentifier algorithm_identifier() const; + + std::vector<byte> x509_subject_public_key() const; + + /** + * Get the DL domain parameters of this key. + * @return DL domain parameters of this key + */ + const DL_Group& get_domain() const { return group; } + + /** + * Get the public value y with y = g^x mod p where x is the secret key. + */ + const BigInt& get_y() const { return y; } + + /** + * Get the prime p of the underlying DL group. + * @return prime p + */ + const BigInt& group_p() const { return group.get_p(); } + + /** + * Get the prime q of the underlying DL group. + * @return prime q + */ + const BigInt& group_q() const { return group.get_q(); } + + /** + * Get the generator g of the underlying DL group. + * @return generator g + */ + const BigInt& group_g() const { return group.get_g(); } + + /** + * Get the underlying groups encoding format. + * @return encoding format + */ + virtual DL_Group::Format group_format() const = 0; + + size_t estimated_strength() const override; + + DL_Scheme_PublicKey(const AlgorithmIdentifier& alg_id, + const secure_vector<byte>& key_bits, + DL_Group::Format group_format); + + protected: + DL_Scheme_PublicKey() {} + + /** + * The DL public key + */ + BigInt y; + + /** + * The DL group + */ + DL_Group group; + }; + +/** +* This class represents discrete logarithm (DL) private keys. +*/ +class BOTAN_DLL DL_Scheme_PrivateKey : public virtual DL_Scheme_PublicKey, + public virtual Private_Key + { + public: + bool check_key(RandomNumberGenerator& rng, bool) const; + + /** + * Get the secret key x. + * @return secret key + */ + const BigInt& get_x() const { return x; } + + secure_vector<byte> pkcs8_private_key() const; + + DL_Scheme_PrivateKey(const AlgorithmIdentifier& alg_id, + const secure_vector<byte>& key_bits, + DL_Group::Format group_format); + + protected: + DL_Scheme_PrivateKey() {} + + /** + * The DL private key + */ + BigInt x; + }; + +} + +#endif |