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Diffstat (limited to 'src/libcrypto/libaes/aes.h')
| -rw-r--r-- | src/libcrypto/libaes/aes.h | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/src/libcrypto/libaes/aes.h b/src/libcrypto/libaes/aes.h deleted file mode 100644 index 4f1e3b335..000000000 --- a/src/libcrypto/libaes/aes.h +++ /dev/null @@ -1,97 +0,0 @@ -// I retain copyright in this code but I encourage its free use provided -// that I don't carry any responsibility for the results. I am especially -// happy to see it used in free and open source software. If you do use -// it I would appreciate an acknowledgement of its origin in the code or -// the product that results and I would also appreciate knowing a little -// about the use to which it is being put. I am grateful to Frank Yellin -// for some ideas that are used in this implementation. -// -// Dr B. R. Gladman <brg@gladman.uk.net> 6th April 2001. -// -// This is an implementation of the AES encryption algorithm (Rijndael) -// designed by Joan Daemen and Vincent Rijmen. This version is designed -// to provide both fixed and dynamic block and key lengths and can also -// run with either big or little endian internal byte order (see aes.h). -// It inputs block and key lengths in bytes with the legal values being -// 16, 24 and 32. - -/* - * Modified by Jari Ruusu, May 1 2001 - * - Fixed some compile warnings, code was ok but gcc warned anyway. - * - Changed basic types: byte -> unsigned char, word -> u_int32_t - * - Major name space cleanup: Names visible to outside now begin - * with "aes_" or "AES_". A lot of stuff moved from aes.h to aes.c - * - Removed C++ and DLL support as part of name space cleanup. - * - Eliminated unnecessary recomputation of tables. (actual bug fix) - * - Merged precomputed constant tables to aes.c file. - * - Removed data alignment restrictions for portability reasons. - * - Made block and key lengths accept bit count (128/192/256) - * as well byte count (16/24/32). - * - Removed all error checks. This change also eliminated the need - * to preinitialize the context struct to zero. - * - Removed some totally unused constants. - */ - -#ifndef _AES_H -#define _AES_H - -#if defined(__linux__) && defined(__KERNEL__) -# include <linux/types.h> -#else -# include <sys/types.h> -#endif - -// CONFIGURATION OPTIONS (see also aes.c) -// -// Define AES_BLOCK_SIZE to set the cipher block size (16, 24 or 32) or -// leave this undefined for dynamically variable block size (this will -// result in much slower code). -// IMPORTANT NOTE: AES_BLOCK_SIZE is in BYTES (16, 24, 32 or undefined). If -// left undefined a slower version providing variable block length is compiled - -#define AES_BLOCK_SIZE 16 - -// The number of key schedule words for different block and key lengths -// allowing for method of computation which requires the length to be a -// multiple of the key length -// -// Nk = 4 6 8 -// ------------- -// Nb = 4 | 60 60 64 -// 6 | 96 90 96 -// 8 | 120 120 120 - -#if !defined(AES_BLOCK_SIZE) || (AES_BLOCK_SIZE == 32) -#define AES_KS_LENGTH 120 -#define AES_RC_LENGTH 29 -#else -#define AES_KS_LENGTH 4 * AES_BLOCK_SIZE -#define AES_RC_LENGTH (9 * AES_BLOCK_SIZE) / 8 - 8 -#endif - -typedef struct -{ - u_int32_t aes_Nkey; // the number of words in the key input block - u_int32_t aes_Nrnd; // the number of cipher rounds - u_int32_t aes_e_key[AES_KS_LENGTH]; // the encryption key schedule - u_int32_t aes_d_key[AES_KS_LENGTH]; // the decryption key schedule -#if !defined(AES_BLOCK_SIZE) - u_int32_t aes_Ncol; // the number of columns in the cipher state -#endif -} aes_context; - -// THE CIPHER INTERFACE - -#if !defined(AES_BLOCK_SIZE) -extern void aes_set_blk(aes_context *, const int); -#endif -extern void aes_set_key(aes_context *, const unsigned char [], const int, const int); -extern void aes_encrypt(const aes_context *, const unsigned char [], unsigned char []); -extern void aes_decrypt(const aes_context *, const unsigned char [], unsigned char []); - -// The block length inputs to aes_set_block and aes_set_key are in numbers -// of bytes or bits. The calls to subroutines must be made in the above -// order but multiple calls can be made without repeating earlier calls -// if their parameters have not changed. - -#endif // _AES_H |