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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | VERSIONS | ATTRIBUTES | BUGS | SEE ALSO | COLOPHON |
XCRYPT(3) Linux Programmer's Manual XCRYPT(3)
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.
The functions xencrypt() and xdecrypt() return 1 on success and 0 on
error.
These functions are available in glibc since version 2.1.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│passwd2des(), xencrypt(), xdecrypt() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
The prototypes are missing from the abovementioned include file.
cbc_crypt(3)
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2015-07-23 XCRYPT(3)
Pages that refer to this page: des_crypt(3)