ECDSA (Elliptic Curve Digital Sign Algorithm [PrimeField]
)
- copy
includes
folder to your project
- add
ecdsa.h
to your source file
- link
crypto_pseudo_random_generator.lib
to your project
- link
sha512.lib
to your project
- link
aes.lib
to your project
- link
ecdsa_primefield.lib
to your project
- link
thread_pool.lib
to your project
- copy
includes
folder to your project
- add
ecdsa.h
to your source file
- link
libcrypto_pseudo_random_generator.a
to your project
- link
libsha512.a
to your project
- link
libaes.a
to your project
- link
libecdsa_primefield.a
to your project
- link
libthread_pool.a
to your project
- Example Use NIST Standart P384
auto NIST = std::make_shared<ECDSA_NIST_384>();
std::string SecretKey("1234567890098765432112345678900987654321");
std::string Message("Hello Alice! My name is Bob!");
// CreateKeyCheckDigitalSign
std::pair<std::string, std::string> KeyCheckDigitalSign = NIST->CreateKeyCheckDigitalSign(SecretKey);
// CreateDigitalSign
std::pair<std::string, std::string> DigitalSign = NIST->CreateDigitalSign(SecretKey, Message);
// Message += "?"; //Change Message (Attack to integrity)
// CheckDigitalSign
bool result = NIST->CheckDigitalSign(DigitalSign, Message, KeyCheckDigitalSign);
- Example Use GOST Standart P512
auto GOST = std::make_shared<ECDSA_GOST_512>();
std::string SecretKey("1234567890098765432112345678900987654321");
std::string Message("Hello Alice! My name is Bob!");
// CreateKeyCheckDigitalSign
std::pair<std::string, std::string> KeyCheckDigitalSign = GOST->CreateKeyCheckDigitalSign(SecretKey);
// CreateDigitalSign
std::pair<std::string, std::string> DigitalSign = GOST->CreateDigitalSign(SecretKey, Message);
// Message += "?"; //Change Message (Attack to integrity)
// CheckDigitalSign
bool result = GOST->CheckDigitalSign(DigitalSign, Message, KeyCheckDigitalSign);
- Example ECDHE (
Elliptic Curve Diffie-Hellman
)
auto NIST = std::make_shared<ECDSA_NIST_521>();
// secret parameter UserA
bigint dA;
// secret parameter UserB
bigint dB;
//Generate Pseudo Random Number
CryptoPseudoRandomGenerator generator;
auto pseudo_random_number = generator.generate(1024);
//Get Secret Key for Elliptic Curve UserA
dA.FromString(NIST->hexStr(pseudo_random_number), 16);
//Get Public Elliptic Curve Point UserA
auto QA = NIST->MultiplyOnBasePoint(dA);
//Generate Pseudo Random Number
pseudo_random_number = generator.generate(1024);
//Get Secret Key for Elliptic Curve UserB
dB.FromString(NIST->hexStr(pseudo_random_number), 16);
//Get Public Elliptic Curve Point UserB
auto QB = NIST->MultiplyOnBasePoint(dB);
//Calculate Common Session Key for UserA
ecpoint FriendQB(NIST);
FriendQB.setCoordinate(
std::string(QB.first),
std::string(QB.second)
);
ecpoint SecretPointA = FriendQB*dA;
//Calculate Common Session Key for UserB
ecpoint FriendQA(NIST);
FriendQA.setCoordinate(
std::string(QA.first),
std::string(QA.second)
);
ecpoint SecretPointB = FriendQA*dB;
// check equals shared secret
auto result = SecretPointB.getXCoordinate() == SecretPointA.getXCoordinate() ? true : false;
- aes
- crypto_pseudo_random_generator
- ecdsa (GOST_256, GOST_512, NIST_192 ... curves)
- ecdsa_primefield
- sha512