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# rijndael-api-fst.h

説明を見る。

    00001
    00038 #ifndef __RIJNDAEL_API_FST_H
    00039 #define __RIJNDAEL_API_FST_H
    00040
    00041 //#include <stdio.h>
    00042 #include "rijndael-alg-fst.h"
    00043
    00044 /*  Generic Defines  */
    00045 #define     DIR_ENCRYPT           0 /*  Are we encrpyting?  */
    00046 #define     DIR_DECRYPT           1 /*  Are we decrpyting?  */
    00047 #define     MODE_ECB              1 /*  Are we ciphering in ECB mode?   */
    00048 #define     MODE_CBC              2 /*  Are we ciphering in CBC mode?   */
    00049 #define     MODE_CFB1             3 /*  Are we ciphering in 1-bit CFB mode? */
    00050 #define     TRUE                  1
    00051 #define     FALSE                 0
    00052 #define     BITSPERBLOCK        128 /* Default number of bits in a cipher block */
    00053
    00054 /*  Error Codes  */
    00055 #define     BAD_KEY_DIR          -1 /*  Key direction is invalid, e.g., unknown value */
    00056 #define     BAD_KEY_MAT          -2 /*  Key material not of correct length */
    00057 #define     BAD_KEY_INSTANCE     -3 /*  Key passed is not valid */
    00058 #define     BAD_CIPHER_MODE      -4 /*  Params struct passed to cipherInit invalid */
    00059 #define     BAD_CIPHER_STATE     -5 /*  Cipher in wrong state (e.g., not initialized) */
    00060 #define     BAD_BLOCK_LENGTH     -6
    00061 #define     BAD_CIPHER_INSTANCE  -7
    00062 #define     BAD_DATA             -8 /*  Data contents are invalid, e.g., invalid padding */
    00063 #define     BAD_OTHER            -9 /*  Unknown error */
    00064
    00065 /*  Algorithm-specific Defines  */
    00066 #define     MAX_KEY_SIZE         64 /* # of ASCII char's needed to represent a key */
    00067 #define     MAX_IV_SIZE          16 /* # bytes needed to represent an IV  */
    00068
    00069 /*  Typedefs  */
    00070 #if 0
    00071 typedef unsigned char   BYTE;
    00072 #else
    00073 #   ifndef WIN32
    00074         typedef unsigned char   BYTE;
    00075 #   else
    00076 #       include <windows.h>
    00077 #   endif
    00078 #endif
    00079 /*  The structure for key information */
    00080 typedef struct {
    00081     BYTE  direction;                /* Key used for encrypting or decrypting? */
    00082     int   keyLen;                   /* Length of the key  */
    00083     char  keyMaterial[MAX_KEY_SIZE+1];  /* Raw key data in ASCII, e.g., user input or KAT values */
    00084     int   Nr;                       /* key-length-dependent number of rounds */
    00085     u32   rk[4*(MAXNR + 1)];        /* key schedule */
    00086     u32   ek[4*(MAXNR + 1)];        /* CFB1 key schedule (encryption only) */
    00087 } keyInstance;
    00088
    00089 /*  The structure for cipher information */
    00090 typedef struct {                    /* changed order of the components */
    00091     BYTE  mode;                     /* MODE_ECB, MODE_CBC, or MODE_CFB1 */
    00092     BYTE  IV[MAX_IV_SIZE];          /* A possible Initialization Vector for ciphering */
    00093 } cipherInstance;
    00094
    00095 /*  Function prototypes  */
    00096
    00097 int makeKey(keyInstance *key, BYTE direction, int keyLen, char *keyMaterial);
    00098
    00099 int cipherInit(cipherInstance *cipher, BYTE mode, char *IV);
    00100
    00101 int blockEncrypt(cipherInstance *cipher, keyInstance *key,
    00102         BYTE *input, int inputLen, BYTE *outBuffer);
    00103
    00104 int padEncrypt(cipherInstance *cipher, keyInstance *key,
    00105         BYTE *input, int inputOctets, BYTE *outBuffer);
    00106
    00107 int blockDecrypt(cipherInstance *cipher, keyInstance *key,
    00108         BYTE *input, int inputLen, BYTE *outBuffer);
    00109
    00110 int padDecrypt(cipherInstance *cipher, keyInstance *key,
    00111         BYTE *input, int inputOctets, BYTE *outBuffer);
    00112
    00113 #ifdef INTERMEDIATE_VALUE_KAT
    00114 int cipherUpdateRounds(cipherInstance *cipher, keyInstance *key,
    00115         BYTE *input, int inputLen, BYTE *outBuffer, int Rounds);
    00116 #endif /* INTERMEDIATE_VALUE_KAT */
    00117
    00118 #endif /* __RIJNDAEL_API_FST_H */