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#!/bin/sh
# Requires expect
PREFIX="THIS IS TOTALLY SUPER SECRET"
PHRASE="THIS IS TOTALLY SUPER SECRET"
# Supress echo, and trap exit for correct restoration
stty -echo
trap 'stty echo' EXIT
# Read without processing at all
IFS=""
read -r MASTER
# Restore state
stty echo
trap - EXIT
USEECHO () {
echo $1 $2
}
USEKEYCHAIN () {
expect - <<EOF
spawn keychain --nogui --quiet $1
expect {
"Enter passphrase for $HOME/.ssh/$1:"; { send "$2\n"; }
}
EOF
}
CALL=USEECHO
if [ "$1" = "-k" ]; then
CALL=USEKEYCHAIN
shift
fi;
for NAME in "$@"; do
PREPASS=$(echo $NAME$PHRASE$MASTER | sha256sum | cut -b -24)
$CALL $NAME $PREFIX$PREPASS
done
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