103 lines
4.4 KiB
C
103 lines
4.4 KiB
C
/* $FreeBSD$ */
|
|
/* $KAME: rijndael-api-fst.h,v 1.6 2001/05/27 00:23:23 itojun Exp $ */
|
|
|
|
/*
|
|
* rijndael-api-fst.h v2.3 April '2000
|
|
*
|
|
* Optimised ANSI C code
|
|
*
|
|
* #define INTERMEDIATE_VALUE_KAT to generate the Intermediate Value Known Answer Test.
|
|
*/
|
|
|
|
#ifndef __RIJNDAEL_API_FST_H
|
|
#define __RIJNDAEL_API_FST_H
|
|
|
|
#include <crypto/rijndael/rijndael-alg-fst.h>
|
|
|
|
/* Defines:
|
|
Add any additional defines you need
|
|
*/
|
|
|
|
#define DIR_ENCRYPT 0 /* Are we encrpyting? */
|
|
#define DIR_DECRYPT 1 /* Are we decrpyting? */
|
|
#define MODE_ECB 1 /* Are we ciphering in ECB mode? */
|
|
#define MODE_CBC 2 /* Are we ciphering in CBC mode? */
|
|
#define MODE_CFB1 3 /* Are we ciphering in 1-bit CFB mode? */
|
|
#define BITSPERBLOCK 128 /* Default number of bits in a cipher block */
|
|
|
|
/* Error Codes - CHANGE POSSIBLE: inclusion of additional error codes */
|
|
#define BAD_KEY_DIR -1 /* Key direction is invalid, e.g., unknown value */
|
|
#define BAD_KEY_MAT -2 /* Key material not of correct length */
|
|
#define BAD_KEY_INSTANCE -3 /* Key passed is not valid */
|
|
#define BAD_CIPHER_MODE -4 /* Params struct passed to cipherInit invalid */
|
|
#define BAD_CIPHER_STATE -5 /* Cipher in wrong state (e.g., not initialized) */
|
|
#define BAD_BLOCK_LENGTH -6
|
|
#define BAD_CIPHER_INSTANCE -7
|
|
#define BAD_DATA -8 /* Data contents are invalid, e.g., invalid padding */
|
|
#define BAD_OTHER -9 /* Unknown error */
|
|
|
|
/* CHANGE POSSIBLE: inclusion of algorithm specific defines */
|
|
#define MAX_KEY_SIZE 64 /* # of ASCII char's needed to represent a key */
|
|
#define MAX_IV_SIZE 16 /* # bytes needed to represent an IV */
|
|
|
|
/* Typedefs:
|
|
|
|
Typedef'ed data storage elements. Add any algorithm specific
|
|
parameters at the bottom of the structs as appropriate.
|
|
*/
|
|
|
|
/* The structure for key information */
|
|
typedef struct {
|
|
u_int8_t direction; /* Key used for encrypting or decrypting? */
|
|
int keyLen; /* Length of the key */
|
|
char keyMaterial[MAX_KEY_SIZE+1]; /* Raw key data in ASCII, e.g., user input or KAT values */
|
|
/* The following parameters are algorithm dependent, replace or add as necessary */
|
|
int ROUNDS; /* key-length-dependent number of rounds */
|
|
int blockLen; /* block length */
|
|
union {
|
|
u_int8_t xkS8[RIJNDAEL_MAXROUNDS+1][4][4]; /* key schedule */
|
|
u_int32_t xkS32[RIJNDAEL_MAXROUNDS+1][4]; /* key schedule */
|
|
} xKeySched;
|
|
#define keySched xKeySched.xkS8
|
|
} keyInstance;
|
|
|
|
/* The structure for cipher information */
|
|
typedef struct { /* changed order of the components */
|
|
u_int8_t mode; /* MODE_ECB, MODE_CBC, or MODE_CFB1 */
|
|
u_int8_t IV[MAX_IV_SIZE]; /* A possible Initialization Vector for ciphering */
|
|
/* Add any algorithm specific parameters needed here */
|
|
int blockLen; /* Sample: Handles non-128 bit block sizes (if available) */
|
|
} cipherInstance;
|
|
|
|
/* Function prototypes */
|
|
/* CHANGED: nothing
|
|
TODO: implement the following extensions to setup 192-bit and 256-bit block lengths:
|
|
makeKeyEx(): parameter blockLen added
|
|
-- this parameter is absolutely necessary if you want to
|
|
setup the round keys in a variable block length setting
|
|
cipherInitEx(): parameter blockLen added (for obvious reasons)
|
|
*/
|
|
|
|
int rijndael_makeKey(keyInstance *key, u_int8_t direction, int keyLen, char *keyMaterial);
|
|
|
|
int rijndael_cipherInit(cipherInstance *cipher, u_int8_t mode, char *IV);
|
|
|
|
int rijndael_blockEncrypt(cipherInstance *cipher, keyInstance *key,
|
|
u_int8_t *input, int inputLen, u_int8_t *outBuffer);
|
|
|
|
int rijndael_padEncrypt(cipherInstance *cipher, keyInstance *key,
|
|
u_int8_t *input, int inputOctets, u_int8_t *outBuffer);
|
|
|
|
int rijndael_blockDecrypt(cipherInstance *cipher, keyInstance *key,
|
|
u_int8_t *input, int inputLen, u_int8_t *outBuffer);
|
|
|
|
int rijndael_padDecrypt(cipherInstance *cipher, keyInstance *key,
|
|
u_int8_t *input, int inputOctets, u_int8_t *outBuffer);
|
|
|
|
#ifdef INTERMEDIATE_VALUE_KAT
|
|
int rijndael_cipherUpdateRounds(cipherInstance *cipher, keyInstance *key,
|
|
u_int8_t *input, int inputLen, u_int8_t *outBuffer, int Rounds);
|
|
#endif /* INTERMEDIATE_VALUE_KAT */
|
|
|
|
#endif /* __RIJNDAEL_API_FST_H */
|