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Diffstat (limited to 'CryptoPP/dh2.h')
| -rw-r--r-- | CryptoPP/dh2.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/CryptoPP/dh2.h b/CryptoPP/dh2.h new file mode 100644 index 000000000..af9d342d6 --- /dev/null +++ b/CryptoPP/dh2.h @@ -0,0 +1,58 @@ +#ifndef CRYPTOPP_DH2_H +#define CRYPTOPP_DH2_H + +/** \file +*/ + +#include "cryptlib.h" + +NAMESPACE_BEGIN(CryptoPP) + +/// <a href="http://www.weidai.com/scan-mirror/ka.html#DH2">Unified Diffie-Hellman</a> +class DH2 : public AuthenticatedKeyAgreementDomain +{ +public: + DH2(SimpleKeyAgreementDomain &domain) + : d1(domain), d2(domain) {} + DH2(SimpleKeyAgreementDomain &staticDomain, SimpleKeyAgreementDomain &ephemeralDomain) + : d1(staticDomain), d2(ephemeralDomain) {} + + CryptoParameters & AccessCryptoParameters() {return d1.AccessCryptoParameters();} + + unsigned int AgreedValueLength() const + {return d1.AgreedValueLength() + d2.AgreedValueLength();} + + unsigned int StaticPrivateKeyLength() const + {return d1.PrivateKeyLength();} + unsigned int StaticPublicKeyLength() const + {return d1.PublicKeyLength();} + void GenerateStaticPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const + {d1.GeneratePrivateKey(rng, privateKey);} + void GenerateStaticPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const + {d1.GeneratePublicKey(rng, privateKey, publicKey);} + void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const + {d1.GenerateKeyPair(rng, privateKey, publicKey);} + + unsigned int EphemeralPrivateKeyLength() const + {return d2.PrivateKeyLength();} + unsigned int EphemeralPublicKeyLength() const + {return d2.PublicKeyLength();} + void GenerateEphemeralPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const + {d2.GeneratePrivateKey(rng, privateKey);} + void GenerateEphemeralPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const + {d2.GeneratePublicKey(rng, privateKey, publicKey);} + void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const + {d2.GenerateKeyPair(rng, privateKey, publicKey);} + + bool Agree(byte *agreedValue, + const byte *staticPrivateKey, const byte *ephemeralPrivateKey, + const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey, + bool validateStaticOtherPublicKey=true) const; + +protected: + SimpleKeyAgreementDomain &d1, &d2; +}; + +NAMESPACE_END + +#endif |