man3/key_setsecret.3

   1 .\"  Copyright 2002 walter harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\"
   3 .\" SPDX-License-Identifier: GPL-1.0-or-later
   4 .\"
   5 .\"  I had no way the check the functions out
   6 .\"  be careful
   7 .TH KEY_SETSECRET 3 2021-03-22 "Linux man-pages (unreleased)" "Linux Programmer's Manual"
   8 .SH NAME
   9 key_decryptsession, key_encryptsession, key_setsecret, key_gendes,
  10 key_secretkey_is_set \- interfaces to rpc keyserver daemon
  11 .SH LIBRARY
  12 Standard C library
  13 .RI ( libc ", " \-lc )
  14 .SH SYNOPSIS
  15 .nf
  16 .B #include <rpc/rpc.h>
  17 .PP
  18 .BI "int key_decryptsession(char *" remotename ", des_block *" deskey );
  19 .BI "int key_encryptsession(char *" remotename ", des_block *" deskey );
  20 .PP
  21 .BI "int key_gendes(des_block *" deskey );
  22 .PP
  23 .BI "int key_setsecret(char *" key );
  24 .B int key_secretkey_is_set(void);
  25 .fi
  26 .SH DESCRIPTION
  27 The functions here are used within the RPC's secure authentication
  28 mechanism (AUTH_DES).
  29 There should be no need for user programs to
  30 use this functions.
  31 .PP
  32 The function
  33 .BR key_decryptsession ()
  34 uses the (remote) server netname and takes the DES key
  35 for decrypting.
  36 It uses the public key of the server and the
  37 secret key associated with the effective UID of the calling process.
  38 .PP
  39 The function
  40 .BR key_encryptsession ()
  41 is the inverse of
  42 .BR key_decryptsession ().
  43 It encrypts the DES keys with the public key of the server and
  44 the secret key associated with the effective UID of the calling process.
  45 .PP
  46 The function
  47 .BR key_gendes ()
  48 is used to ask the keyserver for a secure conversation key.
  49 .PP
  50 The function
  51 .BR key_setsecret ()
  52 is used to set the key for the effective UID of the calling process.
  53 .PP
  54 The function
  55 .BR key_secretkey_is_set ()
  56 can be used to determine whether a key has been
  57 set for the effective UID of the calling process.
  58 .SH RETURN VALUE
  59 These functions return 1 on success and 0 on failure.
  60 .SH ATTRIBUTES
  61 For an explanation of the terms used in this section, see
  62 .BR attributes (7).
  63 .ad l
  64 .nh
  65 .TS
  66 allbox;
  67 lbx lb lb
  68 l l l.
  69 Interface       Attribute       Value
  70 T{
  71 .BR key_decryptsession (),
  72 .BR key_encryptsession (),
  73 .BR key_gendes (),
  74 .BR key_setsecret (),
  75 .BR key_secretkey_is_set ()
  76 T}      Thread safety   MT-Safe
  77 .TE
  78 .hy
  79 .ad
  80 .sp 1
  81 .SH NOTES
  82 Note that we talk about two types of encryption here.
  83 One is asymmetric using a public and secret key.
  84 The other is symmetric, the
  85 64-bit DES.
  86 .PP
  87 These routines were part of the Linux/Doors-project, abandoned by now.
  88 .SH SEE ALSO
  89 .BR crypt (3)