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	$buffer = "";
    } else {
	#parse metadata
	$block^=$buffer;
	$self->{'.age'} = unpack("N",substr($block,4,4));
	$length = unpack("N",substr($block,0,4));
	$extra = ($length % 8) ? (8-($length % 8)) : 0;
	$decoded=-8;

	#sanity check
	if ((stat(STATEFILE))[7] != ($length+$extra+8))
	{ $self->errormsg('invalid state file') }

	#read the rest of the file
	sysseek(STATEFILE, 8, $SEEK_SET);
	unless (sysread(STATEFILE,$buffer,$length+$extra) == ($length+$extra))
	{ $self->errormsg('invalid state file') }

	my $next_block;
	$block = $cipher->decrypt(substr($buffer,0,8));
	#decrypt it