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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 <assert.h>
#ifdef __cplusplus
extern "C"
{
#endif
typedef enum
{
AESNI_ECB,
AESNI_CBC,
AESNI_CFB,
AESNI_OFB,
AESNI_CTR,
}
AesNI_Mode;
#define AESNI_ENCRYPT_BLOCK_ECB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_encrypt_block_ecb( \
BlockT plaintext, \
const KeyT* key) \
{ \
assert(key); \
\
return aesni_## prefix ##_encrypt_block_(plaintext, key); \
}
#define AESNI_DECRYPT_BLOCK_ECB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_decrypt_block_ecb( \
BlockT ciphertext, \
const KeyT* key) \
{ \
assert(key); \
\
return aesni_## prefix ##_decrypt_block_(ciphertext, key); \
}
#define AESNI_ENCRYPT_BLOCK_CBC(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_encrypt_block_cbc( \
BlockT plaintext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
return *next_init_vector = aesni_## prefix ##_encrypt_block_ecb( \
aesni_## prefix ##_xor_blocks(plaintext, init_vector), key); \
}
#define AESNI_DECRYPT_BLOCK_CBC(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_decrypt_block_cbc( \
BlockT ciphertext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
BlockT plaintext = aesni_## prefix ##_xor_blocks( \
aesni_## prefix ##_decrypt_block_ecb(ciphertext, key), init_vector); \
*next_init_vector = ciphertext; \
return plaintext; \
}
#define AESNI_ENCRYPT_BLOCK_CFB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_encrypt_block_cfb( \
BlockT plaintext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
return *next_init_vector = aesni_## prefix ##_xor_blocks( \
aesni_## prefix ##_encrypt_block_ecb(init_vector, key), plaintext); \
}
#define AESNI_DECRYPT_BLOCK_CFB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_decrypt_block_cfb( \
BlockT ciphertext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
BlockT plaintext = aesni_## prefix ##_xor_blocks( \
aesni_## prefix ##_encrypt_block_ecb(init_vector, key), ciphertext); \
*next_init_vector = ciphertext; \
return plaintext; \
}
#define AESNI_ENCRYPT_BLOCK_OFB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_encrypt_block_ofb( \
BlockT plaintext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
BlockT tmp = aesni_## prefix ##_encrypt_block_ecb(init_vector, key); \
*next_init_vector = tmp; \
return aesni_## prefix ##_xor_blocks(tmp, plaintext); \
}
#define AESNI_DECRYPT_BLOCK_OFB(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_decrypt_block_ofb( \
BlockT ciphertext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
return aesni_## prefix ##_encrypt_block_ofb( \
ciphertext, key, init_vector, next_init_vector); \
}
#define AESNI_ENCRYPT_BLOCK_CTR(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_encrypt_block_ctr( \
BlockT plaintext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
assert(key); \
assert(next_init_vector); \
\
BlockT ciphertext = aesni_## prefix ##_xor_blocks( \
plaintext, aesni_## prefix ##_encrypt_block_ecb(init_vector, key)); \
*next_init_vector = aesni_## prefix ##_inc_block(init_vector); \
return ciphertext; \
}
#define AESNI_DECRYPT_BLOCK_CTR(prefix, BlockT, KeyT) \
static __inline BlockT __fastcall aesni_## prefix ##_decrypt_block_ctr( \
BlockT ciphertext, \
const KeyT* key, \
BlockT init_vector, \
BlockT* next_init_vector) \
{ \
return aesni_## prefix ##_encrypt_block_ctr( \
ciphertext, key, init_vector, next_init_vector); \
}
#ifdef __cplusplus
}
#endif
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