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signers

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This commit is contained in:
orignal 2014-08-22 16:28:25 -04:00
parent 9277509ce3
commit fa4aaf1f50
1 changed files with 49 additions and 0 deletions
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49
Signature.h
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@ -5,6 +5,7 @@
#include <cryptopp/dsa.h>
#include <cryptopp/asn.h>
#include <cryptopp/oids.h>
#include <cryptopp/osrng.h>
#include <cryptopp/eccrypto.h>
#include "CryptoConst.h"
@ -22,6 +23,14 @@ namespace crypto
virtual size_t GetSignatureLen () const = 0;
};
class Singer
{
public:
virtual ~Singer () {};
virtual void Sign (CryptoPP::RandomNumberGenerator& rnd, const uint8_t * buf, int len, uint8_t * signature) = 0;
};
class DSAVerifier: public Verifier
{
public:
@ -45,6 +54,26 @@ namespace crypto
CryptoPP::DSA::PublicKey m_PublicKey;
};
class DSASinger: public Singer
{
public:
DSASinger (const uint8_t * signingPrivateKey)
{
m_PrivateKey.Initialize (dsap, dsaq, dsag, CryptoPP::Integer (signingPrivateKey, 20));
}
void Sign (CryptoPP::RandomNumberGenerator& rnd, const uint8_t * buf, int len, uint8_t * signature)
{
CryptoPP::DSA::Signer signer (m_PrivateKey);
signer.SignMessage (rnd, buf, len, signature);
}
private:
CryptoPP::DSA::PrivateKey m_PrivateKey;
};
class ECDSAP256Verifier: public Verifier
{
public:
@ -69,6 +98,26 @@ namespace crypto
CryptoPP::ECDSA<CryptoPP::ECP, CryptoPP::SHA256>::PublicKey m_PublicKey;
};
class ECDSAP256Singer: public Singer
{
public:
ECDSAP256Singer (const uint8_t * signingPrivateKey)
{
m_PrivateKey.Initialize (CryptoPP::ASN1::secp256r1(), CryptoPP::Integer (signingPrivateKey, 32));
}
void Sign (CryptoPP::RandomNumberGenerator& rnd, const uint8_t * buf, int len, uint8_t * signature)
{
CryptoPP::ECDSA<CryptoPP::ECP, CryptoPP::SHA256>::Signer signer (m_PrivateKey);
signer.SignMessage (rnd, buf, len, signature);
}
private:
CryptoPP::ECDSA<CryptoPP::ECP, CryptoPP::SHA256>::PrivateKey m_PrivateKey;
};
}
}