mirror of https://github.com/PurpleI2P/i2pd.git
I2P: End-to-End encrypted and anonymous Internet
https://i2pd.website/
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.
53 lines
1.5 KiB
53 lines
1.5 KiB
#ifndef GOST_H__ |
|
#define GOST_H__ |
|
|
|
#include <memory> |
|
#include <openssl/ec.h> |
|
|
|
namespace i2p |
|
{ |
|
namespace crypto |
|
{ |
|
|
|
// ГОСТ Р 34.10 |
|
|
|
enum GOSTR3410ParamSet |
|
{ |
|
eGOSTR3410CryptoProA = 0, // 1.2.643.2.2.35.1 |
|
// XchA = A, XchB = C |
|
//eGOSTR3410CryptoProXchA, // 1.2.643.2.2.36.0 |
|
//eGOSTR3410CryptoProXchB, // 1.2.643.2.2.36.1 |
|
eGOSTR3410TC26A512, // 1.2.643.7.1.2.1.2.1 |
|
eGOSTR3410NumParamSets |
|
}; |
|
|
|
class GOSTR3410Curve |
|
{ |
|
public: |
|
|
|
GOSTR3410Curve (BIGNUM * a, BIGNUM * b, BIGNUM * p, BIGNUM * q, BIGNUM * x, BIGNUM * y); |
|
~GOSTR3410Curve (); |
|
|
|
size_t GetKeyLen () const { return m_KeyLen; }; |
|
const EC_GROUP * GetGroup () const { return m_Group; }; |
|
EC_POINT * MulP (const BIGNUM * n) const; |
|
bool GetXY (const EC_POINT * p, BIGNUM * x, BIGNUM * y) const; |
|
EC_POINT * CreatePoint (const BIGNUM * x, const BIGNUM * y) const; |
|
void Sign (const BIGNUM * priv, const BIGNUM * digest, BIGNUM * r, BIGNUM * s); |
|
bool Verify (const EC_POINT * pub, const BIGNUM * digest, const BIGNUM * r, const BIGNUM * s); |
|
EC_POINT * RecoverPublicKey (const BIGNUM * digest, const BIGNUM * r, const BIGNUM * s, bool isNegativeY = false) const; |
|
|
|
private: |
|
|
|
EC_GROUP * m_Group; |
|
size_t m_KeyLen; // in bytes |
|
}; |
|
|
|
std::unique_ptr<GOSTR3410Curve>& GetGOSTR3410Curve (GOSTR3410ParamSet paramSet); |
|
|
|
void GOSTR3411_2012_256 (const uint8_t * buf, size_t len, uint8_t * digest); |
|
void GOSTR3411_2012_512 (const uint8_t * buf, size_t len, uint8_t * digest); |
|
} |
|
} |
|
|
|
#endif
|
|
|