Counter Strike : Global Offensive Source Code
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#ifndef CRYPTOPP_XTRCRYPT_H
#define CRYPTOPP_XTRCRYPT_H
/** \file
"The XTR public key system" by Arjen K. Lenstra and Eric R. Verheul */
#include "xtr.h"
NAMESPACE_BEGIN(CryptoPP)
//! XTR-DH with key validation
class XTR_DH : public SimpleKeyAgreementDomain, public CryptoParameters { typedef XTR_DH ThisClass; public: XTR_DH(const Integer &p, const Integer &q, const GFP2Element &g); XTR_DH(RandomNumberGenerator &rng, unsigned int pbits, unsigned int qbits); XTR_DH(BufferedTransformation &domainParams);
void DEREncode(BufferedTransformation &domainParams) const;
bool Validate(RandomNumberGenerator &rng, unsigned int level) const; bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; void AssignFrom(const NameValuePairs &source); CryptoParameters & AccessCryptoParameters() {return *this;} unsigned int AgreedValueLength() const {return 2*m_p.ByteCount();} unsigned int PrivateKeyLength() const {return m_q.ByteCount();} unsigned int PublicKeyLength() const {return 2*m_p.ByteCount();}
void GeneratePrivateKey(RandomNumberGenerator &rng, byte *privateKey) const; void GeneratePublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const; bool Agree(byte *agreedValue, const byte *privateKey, const byte *otherPublicKey, bool validateOtherPublicKey=true) const;
const Integer &GetModulus() const {return m_p;} const Integer &GetSubgroupOrder() const {return m_q;} const GFP2Element &GetSubgroupGenerator() const {return m_g;}
void SetModulus(const Integer &p) {m_p = p;} void SetSubgroupOrder(const Integer &q) {m_q = q;} void SetSubgroupGenerator(const GFP2Element &g) {m_g = g;}
private: unsigned int ExponentBitLength() const;
Integer m_p, m_q; GFP2Element m_g; };
NAMESPACE_END
#endif
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