NAME
xencrypt, xdecrypt, passwd2des - RFS password encryption
SYNOPSIS
#include <rpc/des_crypt.h>
I void passwd2des(char *passwd , char * key );
I int xencrypt(char * secret , char * passwd );
I int xdecrypt(char * secret , char * passwd );
DESCRIPTION
The function
R 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
R 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
R passwd2des (),
and outputs the result again in
secret
as a hex string
of the same length.
The
R xdecrypt ()
function performs the converse operation.
RETURN VALUE
The functions
R xencrypt ()
and
R xdecrypt ()
return 1 on success and 0 on error.
VERSIONS
These routines are present in libc 4.6.27 and later, and in
glibc 2.1 and later.
BUGS
The prototypes are missing from the abovementioned include file.
SEE ALSO
ČLÁNKY DO MAILU