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/*
* ECDSA Signature
* (C) 2007 Falko Strenzke, FlexSecure GmbH
* (C) 2008-2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_ECDSA_SIGNATURE_H__
#define BOTAN_ECDSA_SIGNATURE_H__
#include <botan/bigint.h>
#include <botan/der_enc.h>
#include <botan/ber_dec.h>
namespace Botan {
/**
* Class representing an ECDSA signature
*/
class BOTAN_DLL ECDSA_Signature
{
public:
friend class ECDSA_Signature_Decoder;
ECDSA_Signature() {}
ECDSA_Signature(const BigInt& r, const BigInt& s) :
m_r(r), m_s(s) {}
ECDSA_Signature(const MemoryRegion<byte>& ber);
const BigInt& get_r() const { return m_r; }
const BigInt& get_s() const { return m_s; }
/**
* return the r||s
*/
MemoryVector<byte> get_concatenation() const;
MemoryVector<byte> DER_encode() const;
bool operator==(const ECDSA_Signature& other) const
{
return (get_r() == other.get_r() && get_s() == other.get_s());
}
private:
BigInt m_r;
BigInt m_s;
};
inline bool operator!=(const ECDSA_Signature& lhs, const ECDSA_Signature& rhs)
{
return !(lhs == rhs);
}
ECDSA_Signature decode_concatenation(const MemoryRegion<byte>& concatenation);
}
#endif
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