1 /* rijndael-api.h - Rijndael encryption programming interface. 2 * Author: Kees J. Bot 3 * 3 Nov 2000 4 * Heavily based on the original API code by Antoon Bosselaers, 5 * Vincent Rijmen, and Paulo Barreto, but with a different interface. 6 * 7 * This code (.h and .c) is in the public domain. 8 */ 9 10 #ifndef __RIJNDAEL_API_H 11 #define __RIJNDAEL_API_H 12 13 /* Error codes. */ 14 #define RD_BAD_KEY_MAT -1 /* Key material not of correct length */ 15 #define RD_BAD_BLOCK_LENGTH -2 /* Data is not a block multiple */ 16 #define RD_BAD_DATA -3 /* Data contents are invalid (bad padding?) */ 17 18 /* Key information. */ 19 #define RD_KEY_HEX -1 /* Key is in hex (otherwise octet length) */ 20 #define RD_MAXROUNDS 14 /* Max number of encryption rounds. */ 21 22 typedef struct { 23 int rounds; /* Key-length-dependent number of rounds */ 24 unsigned char encsched[RD_MAXROUNDS+1][4][4]; /* Encr key schedule */ 25 unsigned char decsched[RD_MAXROUNDS+1][4][4]; /* Decr key schedule */ 26 } rd_keyinstance; 27 28 /* Function prototypes. */ 29 30 int rijndael_makekey(rd_keyinstance *_key, 31 size_t _keylen, const void *_keymaterial); 32 33 ssize_t rijndael_ecb_encrypt(rd_keyinstance *_key, 34 const void *_input, void *_output, size_t _length, void *_dummyIV); 35 36 ssize_t rijndael_ecb_decrypt(rd_keyinstance *_key, 37 const void *_input, void *_output, size_t _length, void *_dummyIV); 38 39 ssize_t rijndael_cbc_encrypt(rd_keyinstance *_key, 40 const void *_input, void *_output, size_t _length, void *_IV); 41 42 ssize_t rijndael_cbc_decrypt(rd_keyinstance *_key, 43 const void *_input, void *_output, size_t _length, void *_IV); 44 45 ssize_t rijndael_cfb1_encrypt(rd_keyinstance *_key, 46 const void *_input, void *_output, size_t _length, void *_IV); 47 48 ssize_t rijndael_cfb1_decrypt(rd_keyinstance *_key, 49 const void *_input, void *_output, size_t _length, void *_IV); 50 51 ssize_t rijndael_cfb8_encrypt(rd_keyinstance *_key, 52 const void *_input, void *_output, size_t _length, void *_IV); 53 54 ssize_t rijndael_cfb8_decrypt(rd_keyinstance *_key, 55 const void *_input, void *_output, size_t _length, void *_IV); 56 57 ssize_t rijndael_pad(void *_input, size_t _length); 58 59 ssize_t rijndael_unpad(const void *_input, size_t _length); 60 61 typedef ssize_t (*rd_function)(rd_keyinstance *_key, 62 const void *_input, void *_output, size_t _length, void *_IV); 63 64 #ifdef INTERMEDIATE_VALUE_KAT 65 66 void cipherEncryptUpdateRounds(rd_keyinstance *key, 67 const void *input, void *output, int rounds); 68 69 void cipherDecryptUpdateRounds(rd_keyinstance *key, 70 const void *input, void *output, int rounds); 71 72 #endif /* INTERMEDIATE_VALUE_KAT */ 73 74 #endif /* __RIJNDAEL_API_H */ 75 76 /* 77 * $PchId: rijndael-api.h,v 1.2 2001/01/10 22:02:21 philip Exp $ 78 */ 79