key_setsecret(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | NOTES | SEE ALSO | COLOPHON

KEY_SETSECRET(3)        Linux Programmer's Manual       KEY_SETSECRET(3)

NAME         top

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

SYNOPSIS         top

       #include <rpc/rpc.h>

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

       int key_gendes(des_block *deskey);

       int key_setsecret(char *key);
       int key_secretkey_is_set(void);

DESCRIPTION         top

       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         top

       These functions return 1 on success and 0 on failure.

ATTRIBUTES         top

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

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             Attribute     Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │key_decryptsession(),                 │ Thread safety │ MT-Safe │
       │key_encryptsession(), key_gendes(),   │               │         │
       │key_setsecret(),                      │               │         │
       │key_secretkey_is_set()                │               │         │
       └──────────────────────────────────────┴───────────────┴─────────┘

NOTES         top

       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         top

       crypt(3)

COLOPHON         top

       This page is part of release 5.13 of the Linux man-pages project.
       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/.

                               2021-03-22               KEY_SETSECRET(3)