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/*************************************************
* ECDSA Operations Header File *
* (C) 1999-2008 Jack Lloyd *
* (C) 2007 FlexSecure GmbH *
*************************************************/
#ifndef BOTAN_ECDSA_OPERATIONS_H__
#define BOTAN_ECDSA_OPERATIONS_H__
#include <botan/ec_dompar.h>
#include <botan/rng.h>
namespace Botan {
/*************************************************
* ECDSA Operation *
*************************************************/
class BOTAN_DLL ECDSA_Operation
{
public:
virtual bool verify(const byte sig[], u32bit sig_len,
const byte msg[], u32bit msg_len) const = 0;
virtual SecureVector<byte> sign(const byte message[],
u32bit mess_len,
RandomNumberGenerator&) const = 0;
virtual ECDSA_Operation* clone() const = 0;
virtual ~ECDSA_Operation() {}
};
/*************************************************
* Default ECDSA operation *
*************************************************/
class Default_ECDSA_Op : public ECDSA_Operation
{
public:
bool verify(const byte signature[], u32bit sig_len,
const byte message[], u32bit mess_len) const;
SecureVector<byte> sign(const byte message[], u32bit mess_len,
RandomNumberGenerator& rng) const;
ECDSA_Operation* clone() const
{
return new Default_ECDSA_Op(*this);
}
Default_ECDSA_Op(const EC_Domain_Params& dom_pars,
const BigInt& priv_key,
const PointGFp& pub_key);
private:
EC_Domain_Params m_dom_pars;
PointGFp m_pub_key;
BigInt m_priv_key;
};
}
#endif
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