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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | VERSIONS | ATTRIBUTES | BUGS | SEE ALSO | COLOPHON |
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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);
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.
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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A description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
2019-03-06 XCRYPT(3)
Pages that refer to this page: des_crypt(3)
Copyright and license for this manual page
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