Man page - xcrypt(3)

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Manual

XCRYPT

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
VERSIONS
BUGS
SEE ALSO

NAME

xencrypt, xdecrypt, passwd2des - RFS password encryption

LIBRARY

Standard C library ( libc , -lc )

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

WARNING : Do not use these functions in new code. They do not achieve any type of acceptable cryptographic security guarantees.

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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

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VERSIONS

These functions are available since glibc 2.1.

BUGS

The prototypes are missing from the abovementioned include file.

SEE ALSO

cbc_crypt (3)