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Diffstat (limited to '')
-rw-r--r-- | comm/third_party/botan/src/lib/pubkey/dl_algo/dl_algo.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/pubkey/dl_algo/dl_algo.h b/comm/third_party/botan/src/lib/pubkey/dl_algo/dl_algo.h new file mode 100644 index 0000000000..af01bc217a --- /dev/null +++ b/comm/third_party/botan/src/lib/pubkey/dl_algo/dl_algo.h @@ -0,0 +1,140 @@ +/* +* DL Scheme +* (C) 1999-2007 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_DL_ALGO_H_ +#define BOTAN_DL_ALGO_H_ + +#include <botan/dl_group.h> +#include <botan/pk_keys.h> + +namespace Botan { + +/** +* This class represents discrete logarithm (DL) public keys. +*/ +class BOTAN_PUBLIC_API(2,0) DL_Scheme_PublicKey : public virtual Public_Key + { + public: + bool check_key(RandomNumberGenerator& rng, bool) const override; + + AlgorithmIdentifier algorithm_identifier() const override; + + std::vector<uint8_t> public_key_bits() const override; + + /** + * Get the DL domain parameters of this key. + * @return DL domain parameters of this key + */ + const DL_Group& get_domain() const { return m_group; } + + /** + * Get the DL domain parameters of this key. + * @return DL domain parameters of this key + */ + const DL_Group& get_group() const { return m_group; } + + /** + * Get the public value y with y = g^x mod p where x is the secret key. + */ + const BigInt& get_y() const { return m_y; } + + /** + * Get the prime p of the underlying DL group. + * @return prime p + */ + const BigInt& group_p() const { return m_group.get_p(); } + + /** + * Get the prime q of the underlying DL group. + * @return prime q + */ + const BigInt& group_q() const { return m_group.get_q(); } + + /** + * Get the generator g of the underlying DL group. + * @return generator g + */ + const BigInt& group_g() const { return m_group.get_g(); } + + /** + * Get the underlying groups encoding format. + * @return encoding format + */ + virtual DL_Group::Format group_format() const = 0; + + size_t key_length() const override; + size_t estimated_strength() const override; + + DL_Scheme_PublicKey& operator=(const DL_Scheme_PublicKey& other) = default; + + protected: + DL_Scheme_PublicKey() = default; + + /** + * Create a public key. + * @param alg_id the X.509 algorithm identifier + * @param key_bits DER encoded public key bits + * @param group_format the underlying groups encoding format + */ + DL_Scheme_PublicKey(const AlgorithmIdentifier& alg_id, + const std::vector<uint8_t>& key_bits, + DL_Group::Format group_format); + + DL_Scheme_PublicKey(const DL_Group& group, const BigInt& y); + + /** + * The DL public key + */ + BigInt m_y; + + /** + * The DL group + */ + DL_Group m_group; + }; + +/** +* This class represents discrete logarithm (DL) private keys. +*/ +class BOTAN_PUBLIC_API(2,0) DL_Scheme_PrivateKey : public virtual DL_Scheme_PublicKey, + public virtual Private_Key + { + public: + bool check_key(RandomNumberGenerator& rng, bool) const override; + + /** + * Get the secret key x. + * @return secret key + */ + const BigInt& get_x() const { return m_x; } + + secure_vector<uint8_t> private_key_bits() const override; + + DL_Scheme_PrivateKey& operator=(const DL_Scheme_PrivateKey& other) = default; + + protected: + /** + * Create a private key. + * @param alg_id the X.509 algorithm identifier + * @param key_bits DER encoded private key bits + * @param group_format the underlying groups encoding format + */ + DL_Scheme_PrivateKey(const AlgorithmIdentifier& alg_id, + const secure_vector<uint8_t>& key_bits, + DL_Group::Format group_format); + + DL_Scheme_PrivateKey() = default; + + /** + * The DL private key + */ + BigInt m_x; + }; + +} + +#endif |