rijndael.h File Reference

[Internal] AES encoding / decoding rijndael-alg-fst.h v2.0 August '99 Optimised ANSI C code taken from the 'aescrypt' project: www.sf.net/projects/aescrypt See LICENSE-EST for the license applicable to this file More...

#include <stdio.h>

Classes
struct	keyInstance
struct	cipherInstance
Defines
#define	MAXKC   (256/32)
#define	MAXROUNDS   14
#define	DIR_ENCRYPT   0
#define	DIR_DECRYPT   1
#define	MODE_ECB   1
#define	MODE_CBC   2
#define	MODE_CFB1   3
#define	TRUE   1
#define	FALSE   0
#define	BITSPERBLOCK   128
#define	BAD_KEY_DIR   -1
#define	BAD_KEY_MAT   -2
#define	BAD_KEY_INSTANCE   -3
#define	BAD_CIPHER_MODE   -4
#define	BAD_CIPHER_STATE   -5
#define	BAD_BLOCK_LENGTH   -6
#define	BAD_CIPHER_INSTANCE   -7
#define	MAX_KEY_SIZE   32
#define	MAX_IV_SIZE   16
Typedefs
typedef unsigned char	word8
typedef unsigned short	word16
typedef unsigned int	word32
typedef unsigned char	BYTE
Functions
int	rijndaelKeySched (word8 k[MAXKC][4], int keyBits, word8 rk[MAXROUNDS+1][4][4])
int	rijndaelKeyEnctoDec (int keyBits, word8 W[MAXROUNDS+1][4][4])
int	rijndaelEncrypt (word8 a[16], word8 b[16], word8 rk[MAXROUNDS+1][4][4])
int	rijndaelEncryptRound (word8 a[4][4], word8 rk[MAXROUNDS+1][4][4], int rounds)
int	rijndaelDecrypt (word8 a[16], word8 b[16], word8 rk[MAXROUNDS+1][4][4])
int	rijndaelDecryptRound (word8 a[4][4], word8 rk[MAXROUNDS+1][4][4], int rounds)
int	makeKey (keyInstance *key, BYTE direction, int keyLen, char *keyMaterial)
int	cipherInit (cipherInstance *cipher, BYTE mode, char *IV)
int	blockEncrypt (cipherInstance *cipher, keyInstance *key, BYTE *input, int inputLen, BYTE *outBuffer)
int	blockDecrypt (cipherInstance *cipher, keyInstance *key, BYTE *input, int inputLen, BYTE *outBuffer)
int	cipherUpdateRounds (cipherInstance *cipher, keyInstance *key, BYTE *input, int inputLen, BYTE *outBuffer, int Rounds)

---

Detailed Description

[Internal] AES encoding / decoding rijndael-alg-fst.h v2.0 August '99 Optimised ANSI C code taken from the 'aescrypt' project: www.sf.net/projects/aescrypt See LICENSE-EST for the license applicable to this file

---

Define Documentation

#define MAXKC   (256/32)

Note: Although the routines claim to support 192 and 256 bit blocks, don't take your chances - stick to the 128 bit (16 byte) blocks unless you've run tests to prove that 192 and 256 are correctly supported. Cirilo

---

Function Documentation

int cipherUpdateRounds (  cipherInstance *  cipher, keyInstance *  key, BYTE *  input, int inputLen  __UNUS, BYTE *  outBuffer, int  rounds )

cipherUpdateRounds: Encrypts/Decrypts exactly one full block a specified number of rounds. Only used in the Intermediate Value Known Answer Test. Returns: TRUE - on success BAD_CIPHER_STATE - cipher in bad state (e.g., not initialized)

---