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/*
* ECDSA Operations
* (C) 1999-2008 Jack Lloyd
* (C) 2007 FlexSecure GmbH
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_ECDSA_OPERATIONS_H__
#define BOTAN_ECDSA_OPERATIONS_H__
#include <botan/ec_dompar.h>
#include <botan/reducer.h>
namespace Botan {
/*
* ECDSA Operation
*/
class BOTAN_DLL ECDSA_Operation
{
public:
virtual bool verify(const byte msg[], u32bit msg_len,
const byte sig[], u32bit sig_len) const = 0;
virtual SecureVector<byte> sign(const byte msg[], u32bit msg_len,
const BigInt& k) const = 0;
virtual ECDSA_Operation* clone() const = 0;
virtual ~ECDSA_Operation() {}
};
/*
* Default ECDSA operation
*/
class BOTAN_DLL Default_ECDSA_Op : public ECDSA_Operation
{
public:
bool verify(const byte sig[], u32bit sig_len,
const byte msg[], u32bit msg_len) const;
SecureVector<byte> sign(const byte msg[], u32bit msg_len,
const BigInt& k) 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 dom_pars;
Modular_Reducer mod_n;
PointGFp pub_key;
BigInt priv_key;
};
}
#endif
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