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korayakov
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Файл:Документация по криптоалгоритмам / CRYPTO30 / mqv
.h#ifndef CRYPTOPP_MQV_H
#define CRYPTOPP_MQV_H
#include "modexppc.h"
NAMESPACE_BEGIN(CryptoPP)
// Menezes-Qu-Vanstone in GF(p) with key validation
class MQV : public PK_WithPrecomputation<PK_AuthenticatedKeyAgreementDomain>
{
public:
MQV(const Integer &p, const Integer &q, const Integer &g);
MQV(RandomNumberGenerator &rng, unsigned int pbits);
MQV(BufferedTransformation &domainParams);
void DEREncode(BufferedTransformation &domainParams) const;
void Precompute(unsigned int precomputationStorage=16);
void LoadPrecomputation(BufferedTransformation &storedPrecomputation);
void SavePrecomputation(BufferedTransformation &storedPrecomputation) const;
bool ValidateDomainParameters(RandomNumberGenerator &rng) const;
unsigned int AgreedValueLength() const {return p.ByteCount();}
unsigned int StaticPrivateKeyLength() const {return q.ByteCount();}
unsigned int StaticPublicKeyLength() const {return p.ByteCount();}
void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const;
unsigned int EphemeralPrivateKeyLength() const {return p.ByteCount()+q.ByteCount();}
unsigned int EphemeralPublicKeyLength() const {return p.ByteCount();}
void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const;
bool Agree(byte *agreedValue,
const byte *staticPrivateKey, const byte *ephemeralPrivateKey,
const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey,
bool validateStaticOtherPublicKey=true) const;
const Integer &Prime() const {return p;}
const Integer &SubPrime() const {return q;}
const Integer &Generator() const {return g;}
private:
unsigned int ExponentBitLength() const;
Integer p, q, g;
ModExpPrecomputation gpc;
};
NAMESPACE_END
#endif
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