#!/bin/bash
SWAP=/dev/hda3
NAME=crypt-swap0
ALG=twofish
#ALG=sha256
#ALG= serpent
#ALG=des
#ALG=cast5
#ALG=sha512
#ALG=sha1
#ALG=cast6
#ALG=blowfish
#ALG=aes

case "$1" in 
	start)
	   /usr/bin/cryptsetup -c $ALG -d /dev/urandom create $NAME $SWAP	
		/sbin/mkswap /dev/mapper/$NAME > /dev/null 2>&1
		/sbin/swapon /dev/mapper/$NAME 
		;;
	stop)
		/sbin/swapoff /dev/mapper/$NAME 
		/usr/bin/cryptsetup remove $NAME 
		/bin/sync
		;;
	status)
		/bin/cat /proc/swaps
		;;
	restart)
		$0 stop
		$0 start
		;;
	*)
		echo "Usage: $0{start|stop|restart|status}"
		exit 1
esac