NAME
xencrypt, xdecrypt, passwd2des - RFS password encryption
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <rpc/des_crypt.h>void passwd2des(char \n*passwd\n, char *\nkey\n);int xencrypt(char *\nsecret\n, char *\npasswd\n);\n
\nint xdecrypt(char *\nsecret\n, char *\npasswd\n);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).
| Interface | Attribute | Value |
| passwd2des (), xencrypt (), xdecrypt () | Thread safety | MT-Safe |
VERSIONS
These functions are available since glibc 2.1.
BUGS
The prototypes are missing from the abovementioned include file.
SEE ALSO
cbc_crypt(3)