man3/key_setsecret.3

   1 .\"  Copyright 2002 walter harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\"
   3 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
   4 .\" Distributed under GPL
   5 .\" %%%LICENSE_END
   6 .\"
   7 .\"  I had no way the check the functions out
   8 .\"  be careful
   9 .TH KEY_SETSECRET 3 2017-09-15 "" "Linux Programmer's Manual"
  10 .SH NAME
  11 key_decryptsession, key_encryptsession, key_setsecret, key_gendes,
  12 key_secretkey_is_set \- interfaces to rpc keyserver daemon
  13 .SH SYNOPSIS
  14 .B "#include <rpc/rpc.h>"
  15 .PP
  16 .BI "int key_decryptsession(char *" remotename ,
  17 .BI "des_block *" deskey );
  18 .PP
  19 .BI "int key_encryptsession(char *" remotename ,
  20 .BI "des_block *" deskey );
  21 .PP
  22 .BI "int key_gendes(des_block *" deskey );
  23 .PP
  24 .BI "int key_setsecret(char *" key );
  25 .PP
  26 .B "int key_secretkey_is_set(void);"
  27 .SH DESCRIPTION
  28 The functions here are used within the RPC's secure authentication
  29 mechanism (AUTH_DES).
  30 There should be no need for user programs to
  31 use this functions.
  32 .PP
  33 The function
  34 .BR key_decryptsession ()
  35 uses the (remote) server netname and takes the DES key
  36 for decrypting.
  37 It uses the public key of the server and the
  38 secret key associated with the effective UID of the calling process.
  39 .PP
  40 The function
  41 .BR key_encryptsession ()
  42 is the inverse of
  43 .BR key_decryptsession ().
  44 It encrypts the DES keys with the public key of the server and
  45 the secret key associated with the effective UID of the calling process.
  46 .PP
  47 The function
  48 .BR key_gendes ()
  49 is used to ask the keyserver for a secure conversation key.
  50 .PP
  51 The function
  52 .BR key_setsecret ()
  53 is used to set the key for the effective UID of the calling process.
  54 .PP
  55 The function
  56 .BR key_secretkey_is_set ()
  57 can be used to determine whether a key has been
  58 set for the effective UID of the calling process.
  59 .SH RETURN VALUE
  60 These functions return 1 on success and 0 on failure.
  61 .SH ATTRIBUTES
  62 For an explanation of the terms used in this section, see
  63 .BR attributes (7).
  64 .TS
  65 allbox;
  66 lbw22 lb lb
  67 l l l.
  68 Interface       Attribute       Value
  69 T{
  70 .BR key_decryptsession (),
  71 .br
  72 .BR key_encryptsession (),
  73 .br
  74 .BR key_gendes (),
  75 .br
  76 .BR key_setsecret (),
  77 .br
  78 .BR key_secretkey_is_set ()
  79 T}      Thread safety   MT-Safe
  80 .TE
  81 .sp 1
  82 .SH NOTES
  83 Note that we talk about two types of encryption here.
  84 One is asymmetric using a public and secret key.
  85 The other is symmetric, the
  86 64-bit DES.
  87 .PP
  88 These routines were part of the Linux/Doors-project, abandoned by now.
  89 .SH SEE ALSO
  90 .BR crypt (3)