-read param <$KEYS/recov/$recov/$keeper.param
-case "$param" in
- shamir-params:*) ;;
- *)
- echo >&2 "$quis: secret sharing parameter file damaged (wrong header)"
- exit 1
- ;;
-esac
-t=";${param#*:}"
-case "$t" in
- *";t="*) ;;
- *)
- echo >&2 "$quis: secret sharing parameter file damaged (missing t)"
- exit 1
- ;;
-esac
-t=${t#*;t=}
-t=${t%%;*}