www.pudn.com > LOKI97jiamijiemi.rar > test_cbc.c

/*
 * test_cbc - simple program to run encrypt & decrypt LOKI97 CBC test triples
 *
 * written by Lawrie Brown / May 1998
 */

#include "loki97.h"

/* local func prototypes */
static BYTE *charToBYTE(BYTE *buf, char *hex, int len) ;
static int fromHex (char ch) ;
static int puthex(BYTE *out, int len, FILE *f);

int verbose = 0;	/* verbose flag for debugging */

main()
{
    /***********  VARIABLES  *********************************************/
    int enok = TRUE, deok = TRUE;
    char *hexkey      = "0000000000000000000000000000000000000000000000000000000000000000";
    char *hex_ecipher = "0FE9D4BB4225D98CE335644423256424"; /* MCT enc val */
    char *hex_dplain  = "8E9D5B5988135E0775976D4EF7A12CB7"; /* MCT dec val */
    char *hexIV       = "00000000000000000000000000000000";
    BYTE		plain[BLOCK_SIZE], cipher[BLOCK_SIZE];	/* pt, ct */
    BYTE		prev[BLOCK_SIZE], etemp[BLOCK_SIZE], dtemp[BLOCK_SIZE];
    keyInstance		enc_key, dec_key;	/* AES keyInstances */
    cipherInstance	loki97_cipher;		/* AES cipherInstance */
    int iters = 10000;				/* num iterations in MCT test */
    int	i, st;

    /***********  MCT ENCRYPT TEST  **************************************/

    fprintf(stderr, "LOKI97 MCT Test\n");

    /* construct desired plain, temp and cipher blocks  for MCT encrypt test */
    memset(plain, 0, sizeof(plain));			/* plain = 0 */
    charToBYTE(prev, hexIV, sizeof(prev));		/* prev = iv */
    charToBYTE(cipher,hex_ecipher,sizeof(cipher));	/* cipher from hex */

    /* Init LOKI97 cipher in CBC mode */
    st = cipherInit(&loki97_cipher, MODE_CBC, hexIV);
    if (st != TRUE) fprintf(stderr, "cipherInit failed with code %d\n", st);

    /* Create key structs for encrypt */
    st = makeKey(&enc_key, DIR_ENCRYPT, 256, hexkey);
    if (st != TRUE) fprintf(stderr, "makeKey failed with code %d\n", st);

    /* test encrypt */
    fprintf(stderr,"Plaintext is: ");
    puthex(plain,16,stderr); fprintf(stderr,"\n");
    for (i=0; i= '0' && ch <= '9')
        return ch - '0';
    else if (ch >= 'A' && ch <= 'F')
        return ch - 'A' + 10;
    else if (ch >= 'a' && ch <= 'f')
        return ch - 'a' + 10;
    else
        return 0;
}


/* puthex(out, len, f) - display a len byte value out in hex to file f */
static int puthex(BYTE *out, int len, FILE *f)
{
    int i;
    for(i=0;i