You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.3 KiB
66 lines
2.3 KiB
5 years ago
|
// dh2.h - written and placed in the public domain by Wei Dai
|
||
|
|
|
||
|
|
//! \file
|
||
|
|
//! \headerfile dh2.h
|
||
|
|
//! \brief Classes for Diffie-Hellman authenticated key exchange
|
||
|
|
|
||
|
|
#ifndef CRYPTOPP_DH2_H
|
||
|
|
#define CRYPTOPP_DH2_H
|
||
|
|
|
||
|
|
#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;
|
||
|
|
|
||
|
|
#ifndef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY_562
|
||
|
|
virtual ~DH2() {}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
protected:
|
||
|
|
SimpleKeyAgreementDomain &d1, &d2;
|
||
|
|
};
|
||
|
|
|
||
|
|
NAMESPACE_END
|
||
|
|
|
||
|
|
#endif
|