mdw@git.distorted.org.uk Git - distorted-keys/blob - stash

   1 ### -*-sh-*-
   2 ###
   3 ### Stash a recovery blob of a secret
   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
  26 set -e
  27 case "${KEYSLIB+t}" in t) ;; *) echo >&2 "$0: KEYSLIB unset"; exit 1 ;; esac
  28 . "$KEYSLIB"/keyfunc.sh
  29
  30 defhelp <<HELP
  31 RECOV LABEL [SECRET]
  32 Store a secret encrypted under the recovery key RECOV.
  33
  34 The LABEL is used to identify the encrypted secret later to the \`recover'
  35 command.  The secret is read from SECRET, or stdin if SECRET is omitted or
  36 \`-'.
  37 HELP
  38 dohelp
  39
  40 ## Parse the command line.
  41 case $# in
  42   2) if [ -t 0 ]; then echo >&2 "$quis: stdin is a terminal"; exit 1; fi ;;
  43   3) ;;
  44   *) echo >&2 "$usage"; exit 1 ;;
  45 esac
  46 recov=$1 label=$2; shift 2
  47 checkword "recovery key label" "$recov"
  48 checklabel "secret" "$label"
  49
  50 ## Do the thing.
  51 tmp=$(mktmp); cleanup rmtmp
  52 cat -- "$@" >$tmp/secret
  53 cd $KEYS/recov/$recov/current
  54 case $label in */*) mkdir -m755 -p ${label%/*} ;; esac
  55 ec_encrypt pub -i$tmp/secret -o$label.new
  56 mv $label.new $label.recov
  57
  58 ###----- That's all, folks --------------------------------------------------