diff options
Diffstat (limited to 'aes.h')
| -rw-r--r-- | aes.h | 166 |
1 files changed, 0 insertions, 166 deletions
@@ -1,166 +0,0 @@ -/*
- ---------------------------------------------------------------------------
- Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved.
-
- LICENSE TERMS
-
- The free distribution and use of this software in both source and binary
- form is allowed (with or without changes) provided that:
-
- 1. distributions of this source code include the above copyright
- notice, this list of conditions and the following disclaimer;
-
- 2. distributions in binary form include the above copyright
- notice, this list of conditions and the following disclaimer
- in the documentation and/or other associated materials;
-
- 3. the copyright holder's name is not used to endorse products
- built using this software without specific written permission.
-
- ALTERNATIVELY, provided that this notice is retained in full, this product
- may be distributed under the terms of the GNU General Public License (GPL),
- in which case the provisions of the GPL apply INSTEAD OF those given above.
-
- DISCLAIMER
-
- This software is provided 'as is' with no explicit or implied warranties
- in respect of its properties, including, but not limited to, correctness
- and/or fitness for purpose.
- ---------------------------------------------------------------------------
- Issue 28/01/2004
-
- This file contains the definitions required to use AES in C. See aesopt.h
- for optimisation details.
-*/
-
-#if !defined( _AES_H )
-#define _AES_H
-
-/* This include is used to find 8 & 32 bit unsigned integer types */
-#include "limits.h"
-
-#if defined(__cplusplus)
-extern "C"
-{
-#endif
-
-#define AES_128 /* define if AES with 128 bit keys is needed */
-/* #define AES_192 */ /* define if AES with 192 bit keys is needed */
-/* #define AES_256 */ /* define if AES with 256 bit keys is needed */
-/* #define AES_VAR */ /* define if a variable key size is needed */
-
-/* The following must also be set in assembler files if being used */
-
-#define AES_ENCRYPT /* if support for encryption is needed */
-#define AES_DECRYPT /* if support for decryption is needed */
-/* #define AES_ERR_CHK *//* for parameter checks & error return codes */
-
-#if UCHAR_MAX == 0xff /* an unsigned 8 bit type */
- typedef unsigned char aes_08t;
-#else
-# error Please define aes_08t as an 8-bit unsigned integer type in aes.h
-#endif
-
-#if UINT_MAX == 4294967295 /* an unsigned 32 bit type */
- typedef unsigned int aes_32t;
-#elif ULONG_MAX == 4294967295ul
- typedef unsigned long aes_32t;
-#else
-# error Please define aes_32t as a 32-bit unsigned integer type in aes.h
-#endif
-
-#define AES_BLOCK_SIZE 16 /* the AES block size in bytes */
-#define N_COLS 4 /* the number of columns in the state */
-
-/* The key schedule length is 11, 13 or 15 16-byte blocks for 128, */
-/* 192 or 256-bit keys respectively. That is 176, 208 or 240 bytes */
-/* or 44, 52 or 60 32-bit words. For simplicity this code allocates */
-/* the maximum 60 word array for the key schedule for all key sizes */
-
-#if defined( AES_VAR ) || defined( AES_256 )
-#define KS_LENGTH 60
-#elif defined( AES_192 )
-#define KS_LENGTH 52
-#else
-#define KS_LENGTH 44
-#endif
-
-#if defined( AES_ERR_CHK )
-#define aes_ret int
-#define aes_good 0
-#define aes_error -1
-#else
-#define aes_ret void
-#endif
-
-#if !defined( AES_DLL ) /* implement normal/DLL functions */
-#define aes_rval aes_ret
-#else
-#define aes_rval aes_ret __declspec(dllexport) _stdcall
-#endif
-
-typedef struct
-{ aes_32t ks[KS_LENGTH];
- aes_32t rn;
-} aes_encrypt_ctx;
-
-typedef struct
-{ aes_32t ks[KS_LENGTH];
- aes_32t rn;
-} aes_decrypt_ctx;
-
-/* This routine must be called before first use if non-static */
-/* tables are being used */
-
-void gen_tabs(void);
-
-/* The key length (klen) is input in bytes when it is in the range */
-/* 16 <= klen <= 32 or in bits when in the range 128 <= klen <= 256 */
-
-#if defined( AES_ENCRYPT )
-
-#if defined(AES_128) || defined(AES_VAR)
-aes_rval aes_encrypt_key128(const unsigned char *in_key, aes_encrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_192) || defined(AES_VAR)
-aes_rval aes_encrypt_key192(const unsigned char *in_key, aes_encrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_256) || defined(AES_VAR)
-aes_rval aes_encrypt_key256(const unsigned char *in_key, aes_encrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_VAR)
-aes_rval aes_encrypt_key(const unsigned char *in_key, int key_len, aes_encrypt_ctx cx[1]);
-#endif
-
-aes_rval aes_encrypt(const unsigned char *in_blk, unsigned char *out_blk, const aes_encrypt_ctx cx[1]);
-#endif
-
-#if defined( AES_DECRYPT )
-
-#if defined(AES_128) || defined(AES_VAR)
-aes_rval aes_decrypt_key128(const unsigned char *in_key, aes_decrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_192) || defined(AES_VAR)
-aes_rval aes_decrypt_key192(const unsigned char *in_key, aes_decrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_256) || defined(AES_VAR)
-aes_rval aes_decrypt_key256(const unsigned char *in_key, aes_decrypt_ctx cx[1]);
-#endif
-
-#if defined(AES_VAR)
-aes_rval aes_decrypt_key(const unsigned char *in_key, int key_len, aes_decrypt_ctx cx[1]);
-#endif
-
-aes_rval aes_decrypt(const unsigned char *in_blk, unsigned char *out_blk, const aes_decrypt_ctx cx[1]);
-#endif
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif
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