diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/pubkey/dh/dh.h')
-rw-r--r-- | comm/third_party/botan/src/lib/pubkey/dh/dh.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/pubkey/dh/dh.h b/comm/third_party/botan/src/lib/pubkey/dh/dh.h new file mode 100644 index 0000000000..e3aa0d2c5b --- /dev/null +++ b/comm/third_party/botan/src/lib/pubkey/dh/dh.h @@ -0,0 +1,81 @@ +/* +* Diffie-Hellman +* (C) 1999-2007 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_DIFFIE_HELLMAN_H_ +#define BOTAN_DIFFIE_HELLMAN_H_ + +#include <botan/dl_algo.h> + +namespace Botan { + +/** +* This class represents Diffie-Hellman public keys. +*/ +class BOTAN_PUBLIC_API(2,0) DH_PublicKey : public virtual DL_Scheme_PublicKey + { + public: + std::string algo_name() const override { return "DH"; } + + std::vector<uint8_t> public_value() const; + + DL_Group::Format group_format() const override { return DL_Group::ANSI_X9_42; } + + /** + * Create a public key. + * @param alg_id the X.509 algorithm identifier + * @param key_bits DER encoded public key bits + */ + DH_PublicKey(const AlgorithmIdentifier& alg_id, + const std::vector<uint8_t>& key_bits) : + DL_Scheme_PublicKey(alg_id, key_bits, DL_Group::ANSI_X9_42) {} + + /** + * Construct a public key with the specified parameters. + * @param grp the DL group to use in the key + * @param y the public value y + */ + DH_PublicKey(const DL_Group& grp, const BigInt& y); + protected: + DH_PublicKey() = default; + }; + +/** +* This class represents Diffie-Hellman private keys. +*/ +class BOTAN_PUBLIC_API(2,0) DH_PrivateKey final : public DH_PublicKey, + public PK_Key_Agreement_Key, + public virtual DL_Scheme_PrivateKey + { + public: + std::vector<uint8_t> public_value() const override; + + /** + * Load a private key. + * @param alg_id the X.509 algorithm identifier + * @param key_bits PKCS #8 structure + */ + DH_PrivateKey(const AlgorithmIdentifier& alg_id, + const secure_vector<uint8_t>& key_bits); + + /** + * Create a private key. + * @param rng random number generator to use + * @param grp the group to be used in the key + * @param x the key's secret value (or if zero, generate a new key) + */ + DH_PrivateKey(RandomNumberGenerator& rng, const DL_Group& grp, + const BigInt& x = 0); + + std::unique_ptr<PK_Ops::Key_Agreement> + create_key_agreement_op(RandomNumberGenerator& rng, + const std::string& params, + const std::string& provider) const override; + }; + +} + +#endif |