/** * rijndael-api-fst.h * * @version 2.9 (December 2000) * * Optimised ANSI C code for the Rijndael cipher (now AES) * * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> * @author Paulo Barreto <paulo.barreto@terra.com.br> * * This code is hereby placed in the public domain. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Acknowledgements: * * We are deeply indebted to the following people for their bug reports, * fixes, and improvement suggestions to this implementation. Though we * tried to list all contributions, we apologise in advance for any * missing reference. * * Andrew Bales <Andrew.Bales@Honeywell.com> * Markus Friedl <markus.friedl@informatik.uni-erlangen.de> * John Skodon <skodonj@webquill.com> */#ifndef __RIJNDAEL_API_FST_H#define __RIJNDAEL_API_FST_H#include <stdio.h>#include "rijndael-alg-fst.h"/*  Generic Defines  */#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     TRUE                  1#define     FALSE                 0#define     BITSPERBLOCK        128 /* Default number of bits in a cipher block *//*  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 *//*  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 unsigned char   BYTE;/*  The structure for key information */typedef struct {    BYTE  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 */	int   Nr;                       /* key-length-dependent number of rounds */	u32   rk[4*(MAXNR + 1)];        /* key schedule */	u32   ek[4*(MAXNR + 1)];        /* CFB1 key schedule (encryption only) */} keyInstance;/*  The structure for cipher information */typedef struct {                    /* changed order of the components */    BYTE  mode;                     /* MODE_ECB, MODE_CBC, or MODE_CFB1 */    BYTE  IV[MAX_IV_SIZE];          /* A possible Initialization Vector for ciphering */} cipherInstance;/*  Function prototypes  */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 padEncrypt(cipherInstance *cipher, keyInstance *key,		BYTE *input, int inputOctets, BYTE *outBuffer);int blockDecrypt(cipherInstance *cipher, keyInstance *key,        BYTE *input, int inputLen, BYTE *outBuffer);int padDecrypt(cipherInstance *cipher, keyInstance *key,		BYTE *input, int inputOctets, BYTE *outBuffer);#ifdef INTERMEDIATE_VALUE_KATint cipherUpdateRounds(cipherInstance *cipher, keyInstance *key,        BYTE *input, int inputLen, BYTE *outBuffer, int Rounds);#endif /* INTERMEDIATE_VALUE_KAT */#endif /* __RIJNDAEL_API_FST_H */