chiark / gitweb /
Multiple key types, key profiles, and user key storage.
[distorted-keys] / cryptop.genkey
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c47f2aba
MW
1#! /bin/sh
2###
3### Generate a user key
4###
5### (c) 2011 Mark Wooding
6###
7
8###----- Licensing notice ---------------------------------------------------
9###
10### This file is part of the distorted.org.uk key management suite.
11###
12### distorted-keys is free software; you can redistribute it and/or modify
13### it under the terms of the GNU General Public License as published by
14### the Free Software Foundation; either version 2 of the License, or
15### (at your option) any later version.
16###
17### distorted-keys is distributed in the hope that it will be useful,
18### but WITHOUT ANY WARRANTY; without even the implied warranty of
19### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20### GNU General Public License for more details.
21###
22### You should have received a copy of the GNU General Public License
23### along with distorted-keys; if not, write to the Free Software Foundation,
24### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25
26set -e
27case "${KEYSLIB+t}" in t) ;; *) echo >&2 "$0: KEYSLIB unset"; exit 1 ;; esac
28. "$KEYSLIB"/keyfunc.sh
29
30defhelp <<HELP
31[-f] KEY PROFILE [ARGUMENTS ...]
32Generate a named KEY, according to the PROFILE.
33
34The ARGUMENTS are passed to the key-type handler selected by the profile.
35
36Options:
37 -f Force overwriting an existing key.
38HELP
39
40genhook_recov () {
41 base=$1 nub=$2
42 for recov in $kopt_recovery; do
43 (stash $recov $kowner/$klabel <"$nub")
44 done
45}
46
47## Parse command-line arguments.
48forcep=nil
49while getopts "f" opt; do
50 case "$opt" in
51 f) forcep=t ;;
52 *) usage_err ;;
53 esac
54done
55shift $(( $OPTIND - 1 ))
56case $# in 0 | 1) usage_err ;; esac
57key=$1 profile=$2; shift 2
58
59## Check the key name carefully. This is where we actually create files,
60## so it's reallly important to make sure that we don't make any stupid
61## mistakes.
62mktmp
63parse_keylabel "$key"
64case "$kowner" in
65 "$USERV_USER") ;;
66 *) echo >&2 "$quis: invalid owner \`$kowner' for key"; exit 1 ;;
67esac
68case $forcep in
69 nil)
70 if [ -d $kdir ]; then
71 echo >&2 "$quis: key \`$key' already exists"
72 exit 1
73 fi
74 ;;
75esac
76
77## Check the profile name. We shouldn't allow users to refer to each
78## other's profiles.
79case "$profile" in
80 :*)
81 label=${profile#:}
82 ;;
83 *:*)
84 powner=${profile%%:*} label=${profile#*:}
85 case "$powner" in
86 "$USERV_USER") ;;
87 *) echo >&2 "$quis: invalid owner \`$powner' for profile"; exit 1 ;;
88 esac
89 ;;
90 *)
91 label=$profile
92 ;;
93esac
94checkword "profile label" "$label"
95read_profile $profile
96
97## Generate the key.
98c_genkey $profile $kdir $knub genhook_recov "$@"
99
100###----- That's all, folks --------------------------------------------------