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.
100 lines
3.3 KiB
100 lines
3.3 KiB
5 years ago
|
#ifndef CRYPTOPP_DH_H
|
||
|
|
#define CRYPTOPP_DH_H
|
||
|
|
|
||
|
|
/** \file
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "gfpcrypt.h"
|
||
|
|
|
||
|
|
NAMESPACE_BEGIN(CryptoPP)
|
||
|
|
|
||
|
|
//! ,
|
||
|
|
template <class GROUP_PARAMETERS, class COFACTOR_OPTION = CPP_TYPENAME GROUP_PARAMETERS::DefaultCofactorOption>
|
||
|
|
class DH_Domain : public DL_SimpleKeyAgreementDomainBase<typename GROUP_PARAMETERS::Element>
|
||
|
|
{
|
||
|
|
typedef DL_SimpleKeyAgreementDomainBase<typename GROUP_PARAMETERS::Element> Base;
|
||
|
|
|
||
|
|
public:
|
||
|
|
typedef GROUP_PARAMETERS GroupParameters;
|
||
|
|
typedef typename GroupParameters::Element Element;
|
||
|
|
typedef DL_KeyAgreementAlgorithm_DH<Element, COFACTOR_OPTION> DH_Algorithm;
|
||
|
|
typedef DH_Domain<GROUP_PARAMETERS, COFACTOR_OPTION> Domain;
|
||
|
|
|
||
|
|
DH_Domain() {}
|
||
|
|
|
||
|
|
DH_Domain(const GroupParameters ¶ms)
|
||
|
|
: m_groupParameters(params) {}
|
||
|
|
|
||
|
|
DH_Domain(BufferedTransformation &bt)
|
||
|
|
{m_groupParameters.BERDecode(bt);}
|
||
|
|
|
||
|
|
template <class T2>
|
||
|
|
DH_Domain(RandomNumberGenerator &v1, const T2 &v2)
|
||
|
|
{m_groupParameters.Initialize(v1, v2);}
|
||
|
|
|
||
|
|
template <class T2, class T3>
|
||
|
|
DH_Domain(RandomNumberGenerator &v1, const T2 &v2, const T3 &v3)
|
||
|
|
{m_groupParameters.Initialize(v1, v2, v3);}
|
||
|
|
|
||
|
|
template <class T2, class T3, class T4>
|
||
|
|
DH_Domain(RandomNumberGenerator &v1, const T2 &v2, const T3 &v3, const T4 &v4)
|
||
|
|
{m_groupParameters.Initialize(v1, v2, v3, v4);}
|
||
|
|
|
||
|
|
template <class T1, class T2>
|
||
|
|
DH_Domain(const T1 &v1, const T2 &v2)
|
||
|
|
{m_groupParameters.Initialize(v1, v2);}
|
||
|
|
|
||
|
|
template <class T1, class T2, class T3>
|
||
|
|
DH_Domain(const T1 &v1, const T2 &v2, const T3 &v3)
|
||
|
|
{m_groupParameters.Initialize(v1, v2, v3);}
|
||
|
|
|
||
|
|
template <class T1, class T2, class T3, class T4>
|
||
|
|
DH_Domain(const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4)
|
||
|
|
{m_groupParameters.Initialize(v1, v2, v3, v4);}
|
||
|
|
|
||
|
|
const GroupParameters & GetGroupParameters() const {return m_groupParameters;}
|
||
|
|
GroupParameters & AccessGroupParameters() {return m_groupParameters;}
|
||
|
|
|
||
|
|
void GeneratePublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
|
||
|
|
{
|
||
|
|
Base::GeneratePublicKey(rng, privateKey, publicKey);
|
||
|
|
|
||
|
|
if (FIPS_140_2_ComplianceEnabled())
|
||
|
|
{
|
||
|
|
SecByteBlock privateKey2(this->PrivateKeyLength());
|
||
|
|
this->GeneratePrivateKey(rng, privateKey2);
|
||
|
|
|
||
|
|
SecByteBlock publicKey2(this->PublicKeyLength());
|
||
|
|
Base::GeneratePublicKey(rng, privateKey2, publicKey2);
|
||
|
|
|
||
|
|
SecByteBlock agreedValue(this->AgreedValueLength()), agreedValue2(this->AgreedValueLength());
|
||
|
|
bool agreed1 = this->Agree(agreedValue, privateKey, publicKey2);
|
||
|
|
bool agreed2 = this->Agree(agreedValue2, privateKey2, publicKey);
|
||
|
|
|
||
|
|
if (!agreed1 || !agreed2 || agreedValue != agreedValue2)
|
||
|
|
throw SelfTestFailure(this->AlgorithmName() + ": pairwise consistency test failed");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static std::string CRYPTOPP_API StaticAlgorithmName()
|
||
|
|
{return GroupParameters::StaticAlgorithmNamePrefix() + DH_Algorithm::StaticAlgorithmName();}
|
||
|
|
std::string AlgorithmName() const {return StaticAlgorithmName();}
|
||
|
|
|
||
|
|
private:
|
||
|
|
const DL_KeyAgreementAlgorithm<Element> & GetKeyAgreementAlgorithm() const
|
||
|
|
{return Singleton<DH_Algorithm>().Ref();}
|
||
|
|
DL_GroupParameters<Element> & AccessAbstractGroupParameters()
|
||
|
|
{return m_groupParameters;}
|
||
|
|
|
||
|
|
GroupParameters m_groupParameters;
|
||
|
|
};
|
||
|
|
|
||
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime>;
|
||
|
|
|
||
|
|
//! <a href="http://www.weidai.com/scan-mirror/ka.html#DH">Diffie-Hellman</a> in GF(p) with key validation
|
||
|
|
typedef DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime> DH;
|
||
|
|
|
||
|
|
NAMESPACE_END
|
||
|
|
|
||
|
|
#endif
|