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/**
* AES using Intel's AES instructions
* (C) 1999-2009 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_AES_INTEL_H__
#define BOTAN_AES_INTEL_H__
#include <botan/block_cipher.h>
namespace Botan {
class BOTAN_DLL AES_Intel : public BlockCipher
{
public:
void encrypt_n(const byte in[], byte out[], u32bit blocks) const;
void decrypt_n(const byte in[], byte out[], u32bit blocks) const;
void clear();
std::string name() const { return "AES"; }
BlockCipher* clone() const { return new AES_Intel; }
AES_Intel() : BlockCipher(16, 16, 32, 8) { ROUNDS = 14; }
AES_Intel(u32bit);
private:
void key_schedule(const byte[], u32bit);
u32bit ROUNDS;
SecureBuffer<u32bit, 56> EK;
SecureBuffer<byte, 16> ME;
SecureBuffer<u32bit, 56> DK;
SecureBuffer<byte, 16> MD;
};
/**
* AES-128
*/
class BOTAN_DLL AES_Intel_128 : public AES_Intel
{
public:
std::string name() const { return "AES-128"; }
BlockCipher* clone() const { return new AES_Intel_128; }
AES_Intel_128() : AES_Intel(16) {}
};
/**
* AES-192
*/
class BOTAN_DLL AES_Intel_192 : public AES_Intel
{
public:
std::string name() const { return "AES-192"; }
BlockCipher* clone() const { return new AES_Intel_192; }
AES_Intel_192() : AES_Intel(24) {}
};
/**
* AES-256
*/
class BOTAN_DLL AES_Intel_256 : public AES_Intel
{
public:
std::string name() const { return "AES-256"; }
BlockCipher* clone() const { return new AES_Intel_256; }
AES_Intel_256() : AES_Intel(32) {}
};
}
#endif
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