minix3/drivers/system/random/aes/rijndael.h

81 lines
2.6 KiB
C

/* rijndael-api.h - Rijndael encryption programming interface.
* Author: Kees J. Bot
* 3 Nov 2000
* Heavily based on the original API code by Antoon Bosselaers,
* Vincent Rijmen, and Paulo Barreto, but with a different interface.
*
* This code (.h and .c) is in the public domain.
*/
#ifndef _CRYPTO__RIJNDAEL_H
#define _CRYPTO__RIJNDAEL_H
/* Error codes. */
#define RD_BAD_KEY_MAT -1 /* Key material not of correct length */
#define RD_BAD_BLOCK_LENGTH -2 /* Data is not a block multiple */
#define RD_BAD_DATA -3 /* Data contents are invalid (bad padding?) */
/* Key information. */
#define RD_KEY_HEX -1 /* Key is in hex (otherwise octet length) */
#define RD_MAXROUNDS 14 /* Max number of encryption rounds. */
typedef struct {
int rounds; /* Key-length-dependent number of rounds */
unsigned char encsched[RD_MAXROUNDS+1][4][4]; /* Encr key schedule */
unsigned char decsched[RD_MAXROUNDS+1][4][4]; /* Decr key schedule */
} rd_keyinstance;
#define AES_BLOCKSIZE 16
/* Function prototypes. */
int rijndael_makekey(rd_keyinstance *_key,
size_t _keylen, const void *_keymaterial);
ssize_t rijndael_ecb_encrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_dummyIV);
ssize_t rijndael_ecb_decrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_dummyIV);
ssize_t rijndael_cbc_encrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_cbc_decrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_cfb1_encrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_cfb1_decrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_cfb8_encrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_cfb8_decrypt(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
ssize_t rijndael_pad(void *_input, size_t _length);
ssize_t rijndael_unpad(const void *_input, size_t _length);
typedef ssize_t (*rd_function)(rd_keyinstance *_key,
const void *_input, void *_output, size_t _length, void *_IV);
#ifdef INTERMEDIATE_VALUE_KAT
void cipherEncryptUpdateRounds(rd_keyinstance *key,
const void *input, void *output, int rounds);
void cipherDecryptUpdateRounds(rd_keyinstance *key,
const void *input, void *output, int rounds);
#endif /* INTERMEDIATE_VALUE_KAT */
#endif /* _CRYPTO__RIJNDAEL_H */
/*
* $PchId: rijndael.h,v 1.1 2005/06/01 10:13:45 philip Exp $
*/