xdecrypt(3) -- Linux man page
NAME
xencrypt, xdecrypt, passwd2des - RFS password encryption
SYNOPSIS
#include <rpc/des_crypt.h>
void passwd2des (char *passwd, char *key);
int xencrypt (char *secret, char *passwd);
int xdecrypt (char *secret, char *passwd);
DESCRIPTION
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.
RETURN VALUE
The functions
xencrypt()
and
xdecrypt()
return 1 on success and 0 on error.
AVAILABILITY
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
cbc_crypt(3)
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