dh2.h
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// 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
CryptoParameters
Interface for crypto prameters.
Definition: cryptlib.h:2196
SimpleKeyAgreementDomain
Interface for domains of simple key agreement protocols.
Definition: cryptlib.h:2682
DH2::AccessCryptoParameters
CryptoParameters & AccessCryptoParameters()
Retrieves a reference to Crypto Parameters.
Definition: dh2.h:23
DH2::GenerateStaticKeyPair
void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate a static private/public key pair.
Definition: dh2.h:36
DH2::EphemeralPublicKeyLength
unsigned int EphemeralPublicKeyLength() const
Provides the size of ephemeral public key.
Definition: dh2.h:41
DH2::GenerateEphemeralPublicKey
void GenerateEphemeralPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
Generate ephemeral public key.
Definition: dh2.h:45
DH2::GenerateStaticPublicKey
void GenerateStaticPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
Generate a static public key from a private key in this domain.
Definition: dh2.h:34
AuthenticatedKeyAgreementDomain
Interface for domains of authenticated key agreement protocols.
Definition: cryptlib.h:2747
RandomNumberGenerator
Interface for random number generators.
Definition: cryptlib.h:1186
DH2::GenerateEphemeralPrivateKey
void GenerateEphemeralPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const
Generate ephemeral private key.
Definition: dh2.h:43
DH2::EphemeralPrivateKeyLength
unsigned int EphemeralPrivateKeyLength() const
Provides the size of ephemeral private key.
Definition: dh2.h:39
DH2::GenerateEphemeralKeyPair
void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
Generate private/public key pair.
Definition: dh2.h:47
DH2::StaticPublicKeyLength
unsigned int StaticPublicKeyLength() const
Provides the size of the static public key.
Definition: dh2.h:30
DH2::GenerateStaticPrivateKey
void GenerateStaticPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const
Generate static private key in this domain.
Definition: dh2.h:32
CryptoPP
Crypto++ library namespace.
DH2::StaticPrivateKeyLength
unsigned int StaticPrivateKeyLength() const
Provides the size of the static private key.
Definition: dh2.h:28
DH2
Unified Diffie-Hellman
Definition: dh2.h:15
DH2::AgreedValueLength
unsigned int AgreedValueLength() const
Provides the size of the agreed value.
Definition: dh2.h:25
cryptlib.h
Abstract base classes that provide a uniform interface to this library.