// <!-- Begin
function permutationGenerator(nNumElements) {
	this.nNumElements = nNumElements;
	this.antranspositions = new Array;
	var k = 0;
	for (i = 0; i < nNumElements - 1; i++)
		for (j = i + 1; j < nNumElements; j++)
			this.antranspositions[k++] = (i << 8) | j;
	// keep two positions as lo and hi byte!
	this.nNumtranspositions = k;
	this.fromCycle = permutationGenerator_fromCycle;
}

function permutationGenerator_fromCycle(anCycle) {
	var anpermutation = new Array(this.nNumElements);
	for ( var i = 0; i < this.nNumElements; i++)
		anpermutation[i] = i;
	for ( var i = 0; i < anCycle.length; i++) {
		var nT = this.antranspositions[anCycle[i]];
		var n1 = nT & 255;
		var n2 = (nT >> 8) & 255;
		nT = anpermutation[n1];
		anpermutation[n1] = anpermutation[n2];
		anpermutation[n2] = nT;
	}
	return anpermutation;
}

function password(strpasswd) {
	this.strpasswd = strpasswd;
	this.getHashValue = password_getHashValue;
	this.getpermutation = password_getpermutation;
}

function password_getHashValue() {
	var m = 907633409;
	var a = 65599;
	var h = 0;
	for ( var i = 0; i < this.strpasswd.length; i++)
		h = (h % m) * a + this.strpasswd.charCodeAt(i);
	return h;
}

function password_getpermutation() {
	var nNUMELEMENTS = 13;
	var nCYCLELENGTH = 21;
	pg = new permutationGenerator(nNUMELEMENTS);
	var anCycle = new Array(nCYCLELENGTH);
	var npred = this.getHashValue();
	for ( var i = 0; i < nCYCLELENGTH; i++) {
		npred = 314159269 * npred + 907633409;
		anCycle[i] = npred % pg.nNumtranspositions;
	}
	return pg.fromCycle(anCycle);
}

function SecureContext(strText, strSignature, bEscape) {
	this.strSIGNATURE = strSignature || '';
	this.bESCApE = bEscape || false;
	this.strText = strText;
	this.escape = SecureContext_escape;
	this.unescape = SecureContext_unescape;
	this.transliterate = SecureContext_transliterate;
	this.encypher = SecureContext_encypher;
	this.decypher = SecureContext_decypher;
	this.sign = SecureContext_sign;
	this.unsign = SecureContext_unsign;
	this.secure = SecureContext_secure;
	this.unsecure = SecureContext_unsecure;
}

function SecureContext_escape(strToEscape) {
	var strEscaped = '';
	for ( var i = 0; i < strToEscape.length; i++) {
		var chT = strToEscape.charAt(i);
		switch (chT) {
		case '\r':
			strEscaped += '\\r';
			break;
		case '\n':
			strEscaped += '\\n';
			break;
		case '\\':
			strEscaped += '\\\\';
			break;
		default:
			strEscaped += chT;
		}
	}
	return strEscaped;
}
function SecureContext_unescape(strToUnescape) {
	var strUnescaped = '';
	var i = 0;
	while (i < strToUnescape.length) {
		var chT = strToUnescape.charAt(i++);
		if ('\\' == chT) {
			chT = strToUnescape.charAt(i++);
			switch (chT) {
			case 'r':
				strUnescaped += '\r';
				break;
			case 'n':
				strUnescaped += '\n';
				break;
			case '\\':
				strUnescaped += '\\';
				break;
			default: // not possible
			}
		} else
			strUnescaped += chT;
	}
	return strUnescaped;
}
function SecureContext_transliterate(btransliterate) {
	var strDest = '';

	var nTextIter = 0;
	var nTexttrail = 0;

	while (nTextIter < this.strText.length) {
		var strRun = '';
		var cSkipped = 0;
		while (cSkipped < 7 && nTextIter < this.strText.length) {
			var chT = this.strText.charAt(nTextIter++);
			if (-1 == strRun.indexOf(chT)) {
				strRun += chT;
				cSkipped = 0;
			} else
				cSkipped++;
		}
		while (nTexttrail < nTextIter) {
			var nRunIdx = strRun.indexOf(this.strText.charAt(nTexttrail++));
			if (btransliterate) {
				nRunIdx++
				if (nRunIdx == strRun.length)
					nRunIdx = 0;
			} else {
				nRunIdx--;
				if (nRunIdx == -1)
					nRunIdx += strRun.length;
			}
			strDest += strRun.charAt(nRunIdx);
		}
	}
	this.strText = strDest;
}
function SecureContext_encypher(anperm) {
	var strEncyph = '';
	var nCols = anperm.length;
	var nRows = this.strText.length / nCols;
	for ( var i = 0; i < nCols; i++) {
		var k = anperm[i];
		for ( var j = 0; j < nRows; j++) {
			strEncyph += this.strText.charAt(k);
			k += nCols;
		}
	}
	this.strText = strEncyph;
}
function SecureContext_decypher(anperm) {
	var nRows = anperm.length;
	var nCols = this.strText.length / nRows;
	var anRowOfs = new Array;
	for ( var i = 0; i < nRows; i++)
		anRowOfs[anperm[i]] = i * nCols;
	var strplain = '';
	for ( var i = 0; i < nCols; i++) {
		for ( var j = 0; j < nRows; j++)
			strplain += this.strText.charAt(anRowOfs[j] + i);
	}
	this.strText = strplain;
}
function SecureContext_sign(nCols) {
	if (this.bESCApE) {
		this.strText = this.escape(this.strText);
		this.strSIGNATURE = this.escape(this.strSIGNATURE);
	}
	var nTextLen = this.strText.length + this.strSIGNATURE.length;
	var nMissingCols = nCols - (nTextLen % nCols);
	var strpadding = '';
	if (nMissingCols < nCols)
		for ( var i = 0; i < nMissingCols; i++)
			strpadding += ' ';
	var x = this.strText.length;
	this.strText += strpadding + this.strSIGNATURE;
}
function SecureContext_unsign(nCols) {
	if (this.bESCApE) {
		this.strText = this.unescape(this.strText);
		this.strSIGNATURE = this.unescape(this.strSIGNATURE);
	}
	if ('' == this.strSIGNATURE)
		return true;
	var nTextLen = this.strText.lastIndexOf(this.strSIGNATURE);
	if (-1 == nTextLen)
		return false;
	this.strText = this.strText.substr(0, nTextLen);
	return true;
}
function SecureContext_secure(strpasswd) {
	var passwd = new password(strpasswd);
	var anperm = passwd.getpermutation()
	this.sign(anperm.length);
	this.transliterate(true);
	this.encypher(anperm);
}
function SecureContext_unsecure(strpasswd) {
	var passwd = new password(strpasswd);
	var anperm = passwd.getpermutation()
	this.decypher(anperm);
	this.transliterate(false);
	return this.unsign(anperm.length);
}
// End -->

function doSecure(password) {
	var sc = new SecureContext(password, 'AysapaT#7991', true);
	sc.secure('DiamonD4eva');
	return sc.strText;
}