Путеводитель по Руководству Linux

  User  |  Syst  |  Libr  |  Device  |  Files  |  Other  |  Admin  |  Head  |



   passwd2des    ( 3 )

шифрование пароля RFS (RFS password encryption)

Имя (Name)

xencrypt, xdecrypt, passwd2des - RFS password encryption

Синопсис (Synopsis)

#include <rpc/des_crypt.h>

void passwd2des(char *passwd, char *key);

int xencrypt(char *secret, char *passwd); int xdecrypt(char *secret, char *passwd);


Описание (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.


Возвращаемое значение (Return value)

The functions xencrypt() and xdecrypt() return 1 on success and 0
       on error.

Версии (Versions)

These functions are available in glibc since version 2.1.

Атрибуты (Attributes)

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

┌──────────────────────────────────────┬───────────────┬─────────┐ │Interface Attribute Value │ ├──────────────────────────────────────┼───────────────┼─────────┤ │passwd2des(), xencrypt(), xdecrypt() │ Thread safety │ MT-Safe │ └──────────────────────────────────────┴───────────────┴─────────┘


Ошибки (баги) (Bugs)

The prototypes are missing from the abovementioned include file.

Смотри также (See also)

cbc_crypt(3)