~mdw / distorted-keys / blame
| Commit | Line | Data |
|---|---|---|
| 599c8f75 MW |
1 | #! /bin/sh |
| 2 | ### | |
| 3 | ### Recover a secret stashed earlier | |
| 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 | |
| 32 | Recover the secret LABEL using recovery key RECOV. | |
| 33 | ||
| 34 | The recovery key must be revealed. The secret is written to stdout. | |
| 35 | HELP | |
| 36 | dohelp | |
| 37 | ||
| 38 | ## Parse the command line. | |
| 39 | case $# in 2) ;; *) echo >&2 "$usage"; exit 1 ;; esac | |
| 40 | recov=$1 label=$2 | |
| 41 | checklabel "recovery key label" "$recov" | |
| 42 | checklabel "secret" "$label" | |
| 43 | ||
| 44 | ## Do the recovery. | |
| 45 | blob=$KEYS/recov/$recov/current/$label.recov | |
| 46 | if [ ! -f $blob ]; then | |
| 47 | echo >&2 "$quis: no recovery blob for secret \`$label'" | |
| 48 | exit 1 | |
| 49 | fi | |
| 50 | mem=$(userv root claim-mem-dir </dev/null) | |
| 51 | reveal=$mem/keys.reveal/$recov.current/secret | |
| 52 | if [ ! -f $reveal ]; then | |
| 53 | echo >&2 "$quis: current $recov key not revealed" | |
| 54 | exit 1 | |
| 55 | fi | |
| 56 | tmp=$(mktmp); cleanup rmtmp | |
| 57 | ec_decrypt $reveal -i$blob | |
| 58 | ||
| 59 | ###----- That's all, folks -------------------------------------------------- |