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NAME

       key_decryptsession,   key_encryptsession,   key_setsecret,  key_gendes,
       key_secretkey_is_set - interfaces to rpc keyserver daemon

SYNOPSIS

       #include <rpc/rpc.h>

       int key_decryptsession(const char *remotename, des_block *deskey);

       int key_encryptsession(const char *remotename, des_block *deskey);

       int key_gendes(des_block *deskey);

       int key_setsecret(const char *key);

       int key_secretkey_is_set(void);

DESCRIPTION

       The functions here are used  within  the  RPC’s  secure  authentication
       mechanism (AUTH_DES).  There should be no need for user programs to use
       this functions.

       The function key_decryptsession() uses the (remote) server netname  and
       takes the DES key for decrypting.  It uses the public key of the server
       and the secret key associated with the effective  UID  of  the  calling
       process.

       The     function     key_encryptsession()    is    the    inverse    of
       key_decryptsession().  It encrypts the DES keys with the public key  of
       the  server and the secret key associated with the effective UID of the
       calling process.

       The function key_gendes() is used to ask the  keyserver  for  a  secure
       conversation key.

       The  function  key_setsecret() is used to set the key for the effective
       UID of the calling process.

       The function key_secretkey_is_set() can be used to determine whether  a
       key has been set for the effective UID of the calling process.

RETURN VALUE

       These functions return 1 on success and 0 on failure.

NOTES

       Note  that  we  talk  about  two  types  of  encryption  here.   One is
       asymmetric using a public and secret key.  The other is symmetric,  the
       64-bit DES.

       These  routines were part of the Linux/Doors-project, abandoned by now.

SEE ALSO

       crypt(3)

COLOPHON

       This page is part of release 3.24 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

                                  2002-07-18