i2pd/libi2pd/CryptoKey.h

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#ifndef CRYPTO_KEY_H__
#define CRYPTO_KEY_H__
#include <inttypes.h>
#include "Crypto.h"
namespace i2p
{
namespace crypto
{
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class CryptoKeyEncryptor
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{
public:
virtual ~CryptoKeyEncryptor () {};
virtual void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) = 0; // 222 bytes data, 512 bytes encrypted
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};
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class CryptoKeyDecryptor
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{
public:
virtual ~CryptoKeyDecryptor () {};
virtual bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) = 0; // 512 bytes encrypted, 222 bytes data
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};
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// ElGamal
class ElGamalEncryptor: public CryptoKeyEncryptor // for destination
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{
public:
ElGamalEncryptor (const uint8_t * pub);
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void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx);
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private:
uint8_t m_PublicKey[256];
};
class ElGamalDecryptor: public CryptoKeyDecryptor // for destination
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{
public:
ElGamalDecryptor (const uint8_t * priv);
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bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx);
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private:
uint8_t m_PrivateKey[256];
};
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// ECIES P256
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class ECIESP256Encryptor: public CryptoKeyEncryptor
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{
public:
ECIESP256Encryptor (const uint8_t * pub);
~ECIESP256Encryptor ();
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void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx);
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private:
EC_GROUP * m_Curve;
EC_POINT * m_PublicKey;
};
class ECIESP256Decryptor: public CryptoKeyDecryptor
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{
public:
ECIESP256Decryptor (const uint8_t * priv);
~ECIESP256Decryptor ();
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bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx);
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private:
EC_GROUP * m_Curve;
BIGNUM * m_PrivateKey;
};
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void CreateECIESP256RandomKeys (uint8_t * priv, uint8_t * pub);
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// ECIES GOST R 34.10
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class ECIESGOSTR3410Encryptor: public CryptoKeyEncryptor
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{
public:
ECIESGOSTR3410Encryptor (const uint8_t * pub);
~ECIESGOSTR3410Encryptor ();
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void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx);
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private:
EC_POINT * m_PublicKey;
};
class ECIESGOSTR3410Decryptor: public CryptoKeyDecryptor
{
public:
ECIESGOSTR3410Decryptor (const uint8_t * priv);
~ECIESGOSTR3410Decryptor ();
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bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx);
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private:
BIGNUM * m_PrivateKey;
};
void CreateECIESGOSTR3410RandomKeys (uint8_t * priv, uint8_t * pub);
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}
}
#endif