void
checker(char *key, char *lock)
{
char
*rawkey,
*rawlock;
char
keytype[BUFFSIZE],
locktype[BUFFSIZE];
printf("L %s K %s ", lock, key);
rawkey = lock_strip_alpha(key, keytype);
rawlock = lock_strip_alpha(lock, locktype);
if (!strcmp(keytype, locktype)) {
if (!strcmp(keytype, "sha1")) {
if (!sha_verify(rawkey, rawlock))
printf("sha1 OK\n");
else
printf("sha1 no\n");
}
else
printf("unknown\n");
}
else
printf("Mismatch %s %s\n", keytype, locktype);
}
/*
* Generate an MD5 cancel lock.
*/
unsigned char *
md5_lock(char *secret, int seclen, char *message, int msglen)
{
unsigned char *cankey, *canlock;
unsigned char hmacbuff[MD5_LENGTH];
unsigned char junk[MD5_LENGTH];
MD5_CTX hash_ctx;
cankey = lock_strip_alpha(md5_key(secret, seclen, message, msglen), junk);
canlock = (char *) malloc(BUFFSIZE);
MD5Init(&hash_ctx);
MD5Update(&hash_ctx, cankey, strlen(cankey));
MD5Final(hmacbuff, &hash_ctx);
strcpy(canlock, "md5:");
(void) b64_ntop(hmacbuff, MD5_LENGTH, canlock + 4, BUFFSIZE);
return (canlock);
}
/*
* Return a stripped cancel lock, that is, with the xx: prefix
* removed, else NULL on failure.
* type is set to the lock type, else zero on failure.
*/
unsigned char *
lock_strip(unsigned char *key, char *type)
{
return (lock_strip_alpha(key, type));
}
