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/*
* EMSA3 and EMSA3_Raw
* (C) 1999-2008 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_EMSA3_H__
#define BOTAN_EMSA3_H__
#include <botan/emsa.h>
#include <botan/hash.h>
namespace Botan {
/**
* EMSA3 from IEEE 1363
* aka PKCS #1 v1.5 signature padding
* aka PKCS #1 block type 1
*/
class BOTAN_DLL EMSA3 : public EMSA
{
public:
/**
* @param hash the hash object to use
*/
EMSA3(HashFunction* hash);
~EMSA3();
void update(const byte[], size_t);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, size_t,
RandomNumberGenerator& rng);
bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
size_t);
private:
HashFunction* hash;
SecureVector<byte> hash_id;
};
/**
* EMSA3_Raw which is EMSA3 without a hash or digest id (which
* according to QCA docs is "identical to PKCS#11's CKM_RSA_PKCS
* mechanism", something I have not confirmed)
*/
class BOTAN_DLL EMSA3_Raw : public EMSA
{
public:
void update(const byte[], size_t);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, size_t,
RandomNumberGenerator& rng);
bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
size_t);
private:
SecureVector<byte> message;
};
}
#endif
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