CoCalc -- rijndael-api-fst.h

GitHub Repository: freebsd/freebsd-src
Path: blob/main/sys/crypto/rijndael/rijndael-api-fst.h
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/*	$KAME: rijndael-api-fst.h,v 1.6 2001/05/27 00:23:23 itojun Exp $	*/
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/*
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 * rijndael-api-fst.h   v2.3   April '2000
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 *
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 * Optimised ANSI C code
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 *
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 */
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#ifndef __RIJNDAEL_API_FST_H
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#define __RIJNDAEL_API_FST_H
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#include <crypto/rijndael/rijndael.h>
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/*  Generic Defines  */
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#define     DIR_ENCRYPT           0 /*  Are we encrpyting?  */
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#define     DIR_DECRYPT           1 /*  Are we decrpyting?  */
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#define     MODE_ECB              1 /*  Are we ciphering in ECB mode?   */
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#define     MODE_CBC              2 /*  Are we ciphering in CBC mode?   */
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#define     MODE_CFB1             3 /*  Are we ciphering in 1-bit CFB mode? */
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#define     BITSPERBLOCK        128 /* Default number of bits in a cipher block */
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/*  Error Codes  */
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#define     BAD_KEY_DIR          -1 /*  Key direction is invalid, e.g., unknown value */
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#define     BAD_KEY_MAT          -2 /*  Key material not of correct length */
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#define     BAD_KEY_INSTANCE     -3 /*  Key passed is not valid */
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#define     BAD_CIPHER_MODE      -4 /*  Params struct passed to cipherInit invalid */
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#define     BAD_CIPHER_STATE     -5 /*  Cipher in wrong state (e.g., not initialized) */
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#define     BAD_BLOCK_LENGTH     -6
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#define     BAD_CIPHER_INSTANCE  -7
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#define     BAD_DATA             -8 /*  Data contents are invalid, e.g., invalid padding */
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#define     BAD_OTHER            -9 /*  Unknown error */
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/*  Algorithm-specific Defines  */
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#define     RIJNDAEL_MAX_KEY_SIZE         64 /* # of ASCII char's needed to represent a key */
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#define     RIJNDAEL_MAX_IV_SIZE          16 /* # bytes needed to represent an IV  */
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/*  Typedefs  */
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/*  The structure for key information */
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typedef struct {
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    uint8_t  direction;            /* Key used for encrypting or decrypting? */
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    int   keyLen;                   /* Length of the key  */
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    char  keyMaterial[RIJNDAEL_MAX_KEY_SIZE+1];  /* Raw key data in ASCII, e.g., user input or KAT values */
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	int   Nr;                       /* key-length-dependent number of rounds */
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	uint32_t   rk[4*(RIJNDAEL_MAXNR + 1)];        /* key schedule */
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	uint32_t   ek[4*(RIJNDAEL_MAXNR + 1)];        /* CFB1 key schedule (encryption only) */
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} keyInstance;
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/*  The structure for cipher information */
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typedef struct {                    /* changed order of the components */
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    uint8_t mode;                  /* MODE_ECB, MODE_CBC, or MODE_CFB1 */
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    uint8_t IV[RIJNDAEL_MAX_IV_SIZE]; /* A possible Initialization Vector for ciphering */
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} cipherInstance;
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/*  Function prototypes  */
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int rijndael_makeKey(keyInstance *, uint8_t, int, const char *);
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int rijndael_cipherInit(cipherInstance *, uint8_t, char *);
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int rijndael_blockEncrypt(cipherInstance *, keyInstance *, const uint8_t *,
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	int, uint8_t *);
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int rijndael_padEncrypt(cipherInstance *, keyInstance *, const uint8_t *,
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	int, uint8_t *);
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int rijndael_blockDecrypt(cipherInstance *, keyInstance *, const uint8_t *,
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	int, uint8_t *);
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int rijndael_padDecrypt(cipherInstance *, keyInstance *, const uint8_t *,
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	int, uint8_t *);
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#endif /*  __RIJNDAEL_API_FST_H */
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