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/*************************************************
* DSA Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_DSA_H__
#define BOTAN_DSA_H__
#include <botan/dl_algo.h>
#include <botan/pk_core.h>
namespace Botan {
/*************************************************
* DSA Public Key *
*************************************************/
class DSA_PublicKey : public PK_Verifying_wo_MR_Key,
public virtual DL_Scheme_PublicKey
{
public:
bool verify(const byte[], u32bit, const byte[], u32bit) const;
u32bit max_input_bits() const;
DSA_PublicKey(const DL_Group&, const BigInt&);
protected:
std::string algo_name() const { return "DSA"; }
DSA_PublicKey() {}
DSA_Core core;
private:
friend X509_PublicKey* get_public_key(const std::string&);
DL_Group::Format group_format() const { return DL_Group::ANSI_X9_57; }
u32bit message_parts() const { return 2; }
u32bit message_part_size() const;
void X509_load_hook();
};
/*************************************************
* DSA Private Key *
*************************************************/
class DSA_PrivateKey : public DSA_PublicKey,
public PK_Signing_Key,
public virtual DL_Scheme_PrivateKey
{
public:
SecureVector<byte> sign(const byte[], u32bit) const;
bool check_key(bool) const;
DSA_PrivateKey(const DL_Group&);
DSA_PrivateKey(const DL_Group&, const BigInt&, const BigInt& = 0);
private:
friend PKCS8_PrivateKey* get_private_key(const std::string&);
void PKCS8_load_hook(bool = false);
DSA_PrivateKey() {}
};
}
#endif
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