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65 lines
2.3 KiB
65 lines
2.3 KiB
// dh2.h - written and placed in the public domain by Wei Dai |
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//! \file |
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//! \headerfile dh2.h |
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//! \brief Classes for Diffie-Hellman authenticated key exchange |
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#ifndef CRYPTOPP_DH2_H |
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#define CRYPTOPP_DH2_H |
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#include "cryptlib.h" |
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NAMESPACE_BEGIN(CryptoPP) |
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/// <a href="http://www.weidai.com/scan-mirror/ka.html#DH2">Unified Diffie-Hellman</a> |
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class DH2 : public AuthenticatedKeyAgreementDomain |
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{ |
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public: |
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DH2(SimpleKeyAgreementDomain &domain) |
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: d1(domain), d2(domain) {} |
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DH2(SimpleKeyAgreementDomain &staticDomain, SimpleKeyAgreementDomain &ephemeralDomain) |
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: d1(staticDomain), d2(ephemeralDomain) {} |
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CryptoParameters & AccessCryptoParameters() {return d1.AccessCryptoParameters();} |
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unsigned int AgreedValueLength() const |
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{return d1.AgreedValueLength() + d2.AgreedValueLength();} |
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unsigned int StaticPrivateKeyLength() const |
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{return d1.PrivateKeyLength();} |
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unsigned int StaticPublicKeyLength() const |
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{return d1.PublicKeyLength();} |
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void GenerateStaticPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const |
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{d1.GeneratePrivateKey(rng, privateKey);} |
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void GenerateStaticPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const |
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{d1.GeneratePublicKey(rng, privateKey, publicKey);} |
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void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const |
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{d1.GenerateKeyPair(rng, privateKey, publicKey);} |
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unsigned int EphemeralPrivateKeyLength() const |
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{return d2.PrivateKeyLength();} |
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unsigned int EphemeralPublicKeyLength() const |
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{return d2.PublicKeyLength();} |
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void GenerateEphemeralPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const |
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{d2.GeneratePrivateKey(rng, privateKey);} |
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void GenerateEphemeralPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const |
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{d2.GeneratePublicKey(rng, privateKey, publicKey);} |
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void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const |
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{d2.GenerateKeyPair(rng, privateKey, publicKey);} |
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bool Agree(byte *agreedValue, |
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const byte *staticPrivateKey, const byte *ephemeralPrivateKey, |
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const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey, |
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bool validateStaticOtherPublicKey=true) const; |
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#ifndef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY_562 |
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virtual ~DH2() {} |
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#endif |
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protected: |
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SimpleKeyAgreementDomain &d1, &d2; |
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}; |
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NAMESPACE_END |
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#endif
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