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/*
* AES using Intel's AES-NI instructions
* (C) 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 {
/**
* AES-128 using AES-NI
*/
class BOTAN_DLL AES_128_Intel : public Block_Cipher_Fixed_Params<16, 16>
{
public:
size_t parallelism() const { return 4; }
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear();
std::string name() const { return "AES-128"; }
BlockCipher* clone() const { return new AES_128_Intel; }
AES_128_Intel() : EK(44), DK(44) { }
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
/**
* AES-192 using AES-NI
*/
class BOTAN_DLL AES_192_Intel : public Block_Cipher_Fixed_Params<16, 24>
{
public:
size_t parallelism() const { return 4; }
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear();
std::string name() const { return "AES-192"; }
BlockCipher* clone() const { return new AES_192_Intel; }
AES_192_Intel() : EK(52), DK(52) { }
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
/**
* AES-256 using AES-NI
*/
class BOTAN_DLL AES_256_Intel : public Block_Cipher_Fixed_Params<16, 32>
{
public:
size_t parallelism() const { return 4; }
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear();
std::string name() const { return "AES-256"; }
BlockCipher* clone() const { return new AES_256_Intel; }
AES_256_Intel() : EK(60), DK(60) { }
private:
void key_schedule(const byte[], size_t);
SecureVector<u32bit> EK, DK;
};
}
#endif
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