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/**
* \file
* \author Egor Tensin <Egor.Tensin@gmail.com>
* \date 2015
* \copyright This file is licensed under the terms of the MIT License.
* See LICENSE.txt for details.
*/
#pragma once
#include <aesni/all.h>
#include <type_traits>
namespace aesni
{
typedef AesNI_Mode Mode;
template <Mode mode>
struct ModeRequiresInitializationVector : public std::true_type
{ };
template <>
struct ModeRequiresInitializationVector<AESNI_ECB> : public std::false_type
{ };
template <Mode mode>
struct ModeUsesEncryptionKeysOnly : public std::true_type
{ };
inline bool mode_requires_initialization_vector(Mode mode)
{
return mode != AESNI_ECB;
}
template <>
struct ModeUsesEncryptionKeysOnly<AESNI_ECB> : public std::false_type
{ };
template <>
struct ModeUsesEncryptionKeysOnly<AESNI_CBC> : public std::false_type
{ };
inline bool mode_uses_encryption_keys_only(Mode mode)
{
return mode != AESNI_ECB && mode != AESNI_CBC;
}
#define AESNIXX_ENCRYPT_BLOCK_ECB(prefix) \
template <> \
inline void encrypt_block<AESNI_## prefix, AESNI_ECB>( \
const typename Types<AESNI_## prefix>::Block& plaintext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& ciphertext) \
{ \
ciphertext = aesni_## prefix ##_encrypt_block_ECB(plaintext, &encryption_keys); \
}
#define AESNIXX_DECRYPT_BLOCK_ECB(prefix) \
template <> \
inline void decrypt_block<AESNI_## prefix, AESNI_ECB>( \
const typename Types<AESNI_## prefix>::Block& ciphertext, \
const typename Types<AESNI_## prefix>::RoundKeys& decryption_keys, \
typename Types<AESNI_## prefix>::Block& plaintext) \
{ \
plaintext = aesni_## prefix ##_decrypt_block_ECB(ciphertext, &decryption_keys); \
}
#define AESNIXX_ENCRYPT_BLOCK_CBC(prefix) \
template <> \
inline void encrypt_block<AESNI_## prefix, AESNI_CBC>( \
const typename Types<AESNI_## prefix>::Block& plaintext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& ciphertext) \
{ \
ciphertext = aesni_## prefix ##_encrypt_block_CBC(plaintext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_DECRYPT_BLOCK_CBC(prefix) \
template <> \
inline void decrypt_block<AESNI_## prefix, AESNI_CBC>( \
const typename Types<AESNI_## prefix>::Block& ciphertext, \
const typename Types<AESNI_## prefix>::RoundKeys& decryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& plaintext) \
{ \
plaintext = aesni_## prefix ##_decrypt_block_CBC(ciphertext, &decryption_keys, iv, &iv); \
}
#define AESNIXX_ENCRYPT_BLOCK_CFB(prefix) \
template <> \
inline void encrypt_block<AESNI_## prefix, AESNI_CFB>( \
const typename Types<AESNI_## prefix>::Block& plaintext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& ciphertext) \
{ \
ciphertext = aesni_## prefix ##_encrypt_block_CFB(plaintext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_DECRYPT_BLOCK_CFB(prefix) \
template <> \
inline void decrypt_block<AESNI_## prefix, AESNI_CFB>( \
const typename Types<AESNI_## prefix>::Block& ciphertext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& plaintext) \
{ \
plaintext = aesni_## prefix ##_decrypt_block_CFB(ciphertext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_ENCRYPT_BLOCK_OFB(prefix) \
template <> \
inline void encrypt_block<AESNI_## prefix, AESNI_OFB>( \
const typename Types<AESNI_## prefix>::Block& plaintext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& ciphertext) \
{ \
ciphertext = aesni_## prefix ##_encrypt_block_OFB(plaintext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_DECRYPT_BLOCK_OFB(prefix) \
template <> \
inline void decrypt_block<AESNI_## prefix, AESNI_OFB>( \
const typename Types<AESNI_## prefix>::Block& ciphertext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& plaintext) \
{ \
plaintext = aesni_## prefix ##_decrypt_block_OFB(ciphertext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_ENCRYPT_BLOCK_CTR(prefix) \
template <> \
inline void encrypt_block<AESNI_## prefix, AESNI_CTR>( \
const typename Types<AESNI_## prefix>::Block& plaintext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& ciphertext) \
{ \
ciphertext = aesni_## prefix ##_encrypt_block_CTR(plaintext, &encryption_keys, iv, &iv); \
}
#define AESNIXX_DECRYPT_BLOCK_CTR(prefix) \
template <> \
inline void decrypt_block<AESNI_## prefix, AESNI_CTR>( \
const typename Types<AESNI_## prefix>::Block& ciphertext, \
const typename Types<AESNI_## prefix>::RoundKeys& encryption_keys, \
typename Types<AESNI_## prefix>::Block& iv, \
typename Types<AESNI_## prefix>::Block& plaintext) \
{ \
plaintext = aesni_## prefix ##_decrypt_block_CTR(ciphertext, &encryption_keys, iv, &iv); \
}
}
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