/* taken from ClawsMail passcrypt.c */
static void passcrypt_decrypt(gchar *password, guint len)
{
char des_key[8] = PASSCRYPT_KEY;
des_setparity(des_key);
ecb_crypt(des_key, password, len, DES_DECRYPT);
}
void des_encrypt(const char *key, char *data, int len)
{
char pkey[8];
strncpy(pkey, key, 8);
des_setparity(pkey);
do {
data[len++] = '\x8';
} while (len % 8 != 0);
ecb_crypt(pkey, data, len, DES_ENCRYPT);
}
/*
* Turn password into DES key
*/
void
passwd2des(char *pw, char *key)
{
int i;
bzero(key, 8);
for (i = 0; *pw; i = (i+1)%8) {
key[i] ^= *pw++ << 1;
}
des_setparity(key);
}
/*
* Turn password into DES key
*/
void
passwd2des_internal (char *pw, char *key)
{
int i;
memset (key, 0, 8);
for (i = 0; *pw && i < 8; ++i)
key[i] ^= *pw++ << 1;
des_setparity (key);
}
/* ARGSUSED */
des_block *
key_gen_1_svc_prog(void *v, struct svc_req *s)
{
struct timeval time;
static des_block keygen;
static des_block key;
gettimeofday(&time, NULL);
keygen.key.high += (time.tv_sec ^ time.tv_usec);
keygen.key.low += (time.tv_sec ^ time.tv_usec);
ecb_crypt((char *)&masterkey, (char *)&keygen, sizeof (keygen),
DES_ENCRYPT | DES_HW);
key = keygen;
des_setparity((char *)&key);
if (debugging) {
fprintf(stderr, "gen() = %08x%08x\n", key.key.high,
key.key.low);
fflush(stderr);
}
return (&key);
}
