1XCRYPT(3)                      RPC cryptography                      XCRYPT(3)
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NAME

6       xencrypt, xdecrypt, passwd2des - RFS password encryption
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SYNOPSIS

9       #include <rpc/des_crypt.h>
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11       void passwd2des (char *passwd, char *key);
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13       int xencrypt (char *secret, char *passwd);
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15       int xdecrypt (char *secret, char *passwd);
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DESCRIPTION

19       The  function passwd2des() takes a character string passwd of arbitrary
20       length and fills a character array key of length 8. The  array  key  is
21       suitable  for  use  as  DES key. It has odd parity set in bit 0 of each
22       byte.  Both other functions described here use this  function  to  turn
23       their argument passwd into a DES key.
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25       The  xencrypt()  function takes the ASCII character string secret given
26       in hex, which must have a length that is a multiple of 16, encrypts  it
27       using  the DES key derived from passwd by passwd2des(), and outputs the
28       result again in secret as a hex string of the same length.
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30       The xdecrypt() function performs the converse operation.
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RETURN VALUE

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

37       These  routines  are present in libc 4.6.27 and later, and in glibc 2.1
38       and later.
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BUGS

41       The prototypes are missing from the abovementioned include file.
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SEE ALSO

44       cbc_crypt(3)
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48                                  2003-04-04                         XCRYPT(3)