Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/crypto/rijndael/rijndael-api-fst.h
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1 /* $FreeBSD: releng/9.0/sys/crypto/rijndael/rijndael-api-fst.h 143420 2005-03-11 16:26:10Z ume $ */ 2 /* $KAME: rijndael-api-fst.h,v 1.6 2001/05/27 00:23:23 itojun Exp $ */ 3 4 /* 5 * rijndael-api-fst.h v2.3 April '2000 6 * 7 * Optimised ANSI C code 8 * 9 */ 10 11 #ifndef __RIJNDAEL_API_FST_H 12 #define __RIJNDAEL_API_FST_H 13 14 #include <crypto/rijndael/rijndael.h> 15 16 /* Generic Defines */ 17 #define DIR_ENCRYPT 0 /* Are we encrpyting? */ 18 #define DIR_DECRYPT 1 /* Are we decrpyting? */ 19 #define MODE_ECB 1 /* Are we ciphering in ECB mode? */ 20 #define MODE_CBC 2 /* Are we ciphering in CBC mode? */ 21 #define MODE_CFB1 3 /* Are we ciphering in 1-bit CFB mode? */ 22 #define BITSPERBLOCK 128 /* Default number of bits in a cipher block */ 23 24 /* Error Codes */ 25 #define BAD_KEY_DIR -1 /* Key direction is invalid, e.g., unknown value */ 26 #define BAD_KEY_MAT -2 /* Key material not of correct length */ 27 #define BAD_KEY_INSTANCE -3 /* Key passed is not valid */ 28 #define BAD_CIPHER_MODE -4 /* Params struct passed to cipherInit invalid */ 29 #define BAD_CIPHER_STATE -5 /* Cipher in wrong state (e.g., not initialized) */ 30 #define BAD_BLOCK_LENGTH -6 31 #define BAD_CIPHER_INSTANCE -7 32 #define BAD_DATA -8 /* Data contents are invalid, e.g., invalid padding */ 33 #define BAD_OTHER -9 /* Unknown error */ 34 35 /* Algorithm-specific Defines */ 36 #define RIJNDAEL_MAX_KEY_SIZE 64 /* # of ASCII char's needed to represent a key */ 37 #define RIJNDAEL_MAX_IV_SIZE 16 /* # bytes needed to represent an IV */ 38 39 /* Typedefs */ 40 41 /* The structure for key information */ 42 typedef struct { 43 u_int8_t direction; /* Key used for encrypting or decrypting? */ 44 int keyLen; /* Length of the key */ 45 char keyMaterial[RIJNDAEL_MAX_KEY_SIZE+1]; /* Raw key data in ASCII, e.g., user input or KAT values */ 46 int Nr; /* key-length-dependent number of rounds */ 47 u_int32_t rk[4*(RIJNDAEL_MAXNR + 1)]; /* key schedule */ 48 u_int32_t ek[4*(RIJNDAEL_MAXNR + 1)]; /* CFB1 key schedule (encryption only) */ 49 } keyInstance; 50 51 /* The structure for cipher information */ 52 typedef struct { /* changed order of the components */ 53 u_int8_t mode; /* MODE_ECB, MODE_CBC, or MODE_CFB1 */ 54 u_int8_t IV[RIJNDAEL_MAX_IV_SIZE]; /* A possible Initialization Vector for ciphering */ 55 } cipherInstance; 56 57 /* Function prototypes */ 58 59 int rijndael_makeKey(keyInstance *, u_int8_t, int, char *); 60 61 int rijndael_cipherInit(cipherInstance *, u_int8_t, char *); 62 63 int rijndael_blockEncrypt(cipherInstance *, keyInstance *, u_int8_t *, int, 64 u_int8_t *); 65 int rijndael_padEncrypt(cipherInstance *, keyInstance *, u_int8_t *, int, 66 u_int8_t *); 67 68 int rijndael_blockDecrypt(cipherInstance *, keyInstance *, u_int8_t *, int, 69 u_int8_t *); 70 int rijndael_padDecrypt(cipherInstance *, keyInstance *, u_int8_t *, int, 71 u_int8_t *); 72 73 #endif /* __RIJNDAEL_API_FST_H */
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