xencrypt, xdecrypt, passwd2des — RFS password encryption
#include <rpc/des_crypt.h>
void
passwd2des( |
char * | passwd, |
| char * | key); |
int
xencrypt( |
char * | secret, |
| char * | passwd); |
int
xdecrypt( |
char * | secret, |
| char * | passwd); |
The function passwd2des()
takes a character string passwd of arbitrary length and
fills a character array key of length 8. The array
key is suitable for
use as DES key. It has odd parity set in bit 0 of each byte.
Both other functions described here use this function to turn
their argument passwd
into a DES key.
The xencrypt() function
takes the ASCII character string secret given in hex, which must
have a length that is a multiple of 16, encrypts it using the
DES key derived from passwd by passwd2des(), and outputs the result again
in secret as a hex
string of the same length.
The xdecrypt() function
performs the converse operation.