rijndael-api-fst.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:4k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * rijndael-api-fst.h v2.4 April '2000
- *
- * Optimised ANSI C code
- *
- * #define INTERMEDIATE_VALUE_KAT to generate the Intermediate Value Known Answer Test.
- */
- #ifndef __RIJNDAEL_API_FST_H
- #define __RIJNDAEL_API_FST_H
- #include <stdio.h>
- #include "rijndael-alg-fst.h"
- /* Defines:
- Add any additional defines you need
- */
- #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 - CHANGE POSSIBLE: inclusion of additional 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 */
- /* CHANGE POSSIBLE: inclusion of 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'ed data storage elements. Add any algorithm specific
- parameters at the bottom of the structs as appropriate.
- */
- 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 */
- /* The following parameters are algorithm dependent, replace or add as necessary */
- int ROUNDS; /* key-length-dependent number of rounds */
- int blockLen; /* block length */
- word8 keySched[MAXROUNDS+1][4][4]; /* key schedule */
- } 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 */
- /* Add any algorithm specific parameters needed here */
- int blockLen; /* Sample: Handles non-128 bit block sizes (if available) */
- } cipherInstance;
- /* Function prototypes */
- /* CHANGED: nothing
- TODO: implement the following extensions to setup 192-bit and 256-bit block lengths:
- makeKeyEx(): parameter blockLen added
- -- this parameter is absolutely necessary if you want to
- setup the round keys in a variable block length setting
- cipherInitEx(): parameter blockLen added (for obvious reasons)
- */
- 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_KAT
- int cipherUpdateRounds(cipherInstance *cipher, keyInstance *key,
- BYTE *input, int inputLen, BYTE *outBuffer, int Rounds);
- #endif /* INTERMEDIATE_VALUE_KAT */
- #endif /* __RIJNDAEL_API_FST_H */