3 files changed, 112 insertions, 104 deletions

diff --git a/frontend/gamma/js/Clipperz/Crypto/PRNG.js b/frontend/gamma/js/Clipperz/Crypto/PRNG.js
index c539f06..80d972f 100644
--- a/frontend/gamma/js/Clipperz/Crypto/PRNG.js
+++ b/frontend/gamma/js/Clipperz/Crypto/PRNG.js
@@ -1,841 +1,805 @@
 /*
 
 Copyright 2008-2013 Clipperz Srl
 
 This file is part of Clipperz, the online password manager.
 For further information about its features and functionalities please
 refer to http://www.clipperz.com.
 
 * Clipperz is free software: you can redistribute it and/or modify it
   under the terms of the GNU Affero General Public License as published
   by the Free Software Foundation, either version 3 of the License, or 
   (at your option) any later version.
 
 * Clipperz is distributed in the hope that it will be useful, but 
   WITHOUT ANY WARRANTY; without even the implied warranty of 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   See the GNU Affero General Public License for more details.
 
 * You should have received a copy of the GNU Affero General Public
   License along with Clipperz. If not, see http://www.gnu.org/licenses/.
 
 */
 
+"use strict";
+
 try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!";
 }  
 
 try { if (typeof(Clipperz.Crypto.SHA) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.PRNG depends on Clipperz.Crypto.SHA!";
 }  
 
 try { if (typeof(Clipperz.Crypto.AES) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.PRNG depends on Clipperz.Crypto.AES!";
 }  
 
 if (typeof(Clipperz.Crypto.PRNG) == 'undefined') { Clipperz.Crypto.PRNG = {}; }
 
 //#############################################################################
 
 Clipperz.Crypto.PRNG.EntropyAccumulator = function(args) {
 	args = args || {};
 //	MochiKit.Base.bindMethods(this);
 
 	this._stack = new Clipperz.ByteArray();
 	this._maxStackLengthBeforeHashing = args.maxStackLengthBeforeHashing || 256;
 	return this;
 }
 
 Clipperz.Crypto.PRNG.EntropyAccumulator.prototype = MochiKit.Base.update(null, {
 
 	'toString': function() {
 		return "Clipperz.Crypto.PRNG.EntropyAccumulator";
 	},
 
 	//-------------------------------------------------------------------------
 
 	'stack': function() {
 		return this._stack;
 	},
 	
 	'setStack': function(aValue) {
 		this._stack = aValue;
 	},
 
 	'resetStack': function() {
 		this.stack().reset();
 	},
 	
 	'maxStackLengthBeforeHashing': function() {
 		return this._maxStackLengthBeforeHashing;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'addRandomByte': function(aValue) {
 		this.stack().appendByte(aValue);
 				
 		if (this.stack().length() > this.maxStackLengthBeforeHashing()) {
 			this.setStack(Clipperz.Crypto.SHA.sha_d256(this.stack()));
 		}
 	},
 	
 	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //#############################################################################
 
 Clipperz.Crypto.PRNG.RandomnessSource = function(args) {
 	args = args || {};
 	MochiKit.Base.bindMethods(this);
 
 	this._generator = args.generator || null;
 	this._sourceId = args.sourceId || null;
 	this._boostMode = args.boostMode || false;
 	
 	this._nextPoolIndex = 0;
 	
 	return this;
 }
 
 Clipperz.Crypto.PRNG.RandomnessSource.prototype = MochiKit.Base.update(null, {
 
 	'generator': function() {
 		return this._generator;
 	},
 
 	'setGenerator': function(aValue) {
 		this._generator = aValue;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'boostMode': function() {
 		return this._boostMode;
 	},
 	
 	'setBoostMode': function(aValue) {
 		this._boostMode = aValue;
 	},
 	
 	//-------------------------------------------------------------------------
 	
 	'sourceId': function() {
 		return this._sourceId;
 	},
 
 	'setSourceId': function(aValue) {
 		this._sourceId = aValue;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'nextPoolIndex': function() {
 		return this._nextPoolIndex;
 	},
 	
 	'incrementNextPoolIndex': function() {
 		this._nextPoolIndex = ((this._nextPoolIndex + 1) % this.generator().numberOfEntropyAccumulators());
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'updateGeneratorWithValue': function(aRandomValue) {
 		if (this.generator() != null) {
 			this.generator().addRandomByte(this.sourceId(), this.nextPoolIndex(), aRandomValue);
 			this.incrementNextPoolIndex();
 		}
 	},
 	
 	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //#############################################################################
 	
 Clipperz.Crypto.PRNG.TimeRandomnessSource = function(args) {
 	args = args || {};
 //	MochiKit.Base.bindMethods(this);
 
 	this._intervalTime = args.intervalTime || 1000;
 	
 	Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
 
 	this.collectEntropy();
 	return this;
 }
 
 Clipperz.Crypto.PRNG.TimeRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, {
 
 	'intervalTime': function() {
 		return this._intervalTime;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'collectEntropy': function() {
 		var	now;
 		var	entropyByte;
 		var intervalTime;
 		now = new Date();
 		entropyByte = (now.getTime() & 0xff);
 		
 		intervalTime = this.intervalTime();
 		if (this.boostMode() == true) {
 			intervalTime = intervalTime / 9;
 		}
 		
 		this.updateGeneratorWithValue(entropyByte);
 		setTimeout(this.collectEntropy, intervalTime);
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'numberOfRandomBits': function() {
 		return 5;
 	},
 	
 	//-------------------------------------------------------------------------
-
-	'pollingFrequency': function() {
-		return 10;
-	},
-
-	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //*****************************************************************************
 
 Clipperz.Crypto.PRNG.MouseRandomnessSource = function(args) {
 	args = args || {};
 
 	Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
 
 	this._numberOfBitsToCollectAtEachEvent = 4;
 	this._randomBitsCollector = 0;
 	this._numberOfRandomBitsCollected = 0;
 	
 	MochiKit.Signal.connect(document, 'onmousemove', this, 'collectEntropy');
 
 	return this;
 }
 
 Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, {
 
 	//-------------------------------------------------------------------------
 
 	'numberOfBitsToCollectAtEachEvent': function() {
 		return this._numberOfBitsToCollectAtEachEvent;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'randomBitsCollector': function() {
 		return this._randomBitsCollector;
 	},
 
 	'setRandomBitsCollector': function(aValue) {
 		this._randomBitsCollector = aValue;
 	},
 
 	'appendRandomBitsToRandomBitsCollector': function(aValue) {
 		var collectedBits;
 		var numberOfRandomBitsCollected;
 		
 		numberOfRandomBitsCollected = this.numberOfRandomBitsCollected();
-		collectetBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
-		this.setRandomBitsCollector(collectetBits);
+		collectedBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
+		this.setRandomBitsCollector(collectedBits);
 		numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent();
 		
 		if (numberOfRandomBitsCollected == 8) {
-			this.updateGeneratorWithValue(collectetBits);
+			this.updateGeneratorWithValue(collectedBits);
 			numberOfRandomBitsCollected = 0;
 			this.setRandomBitsCollector(0);
 		}
 		
 		this.setNumberOfRandomBitsCollected(numberOfRandomBitsCollected)
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'numberOfRandomBitsCollected': function() {
 		return this._numberOfRandomBitsCollected;
 	},
 
 	'setNumberOfRandomBitsCollected': function(aValue) {
 		this._numberOfRandomBitsCollected = aValue;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'collectEntropy': function(anEvent) {
 		var mouseLocation;
 		var randomBit;
 		var mask;
 		
 		mask = 0xffffffff >>> (32 - this.numberOfBitsToCollectAtEachEvent());
 		
 		mouseLocation = anEvent.mouse().client;
 		randomBit = ((mouseLocation.x ^ mouseLocation.y) & mask);
 		this.appendRandomBitsToRandomBitsCollector(randomBit)
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'numberOfRandomBits': function() {
 		return 1;
 	},
 	
 	//-------------------------------------------------------------------------
-
-	'pollingFrequency': function() {
-		return 10;
-	},
-
-	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //*****************************************************************************
 
-Clipperz.Crypto.PRNG.KeyboardRandomnessSource = function(args) {
+Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource = function(args) {
 	args = args || {};
-	Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
 
-	this._randomBitsCollector = 0;
-	this._numberOfRandomBitsCollected = 0;
+	this._intervalTime = args.intervalTime || 1000;
+	this._browserCrypto = args.browserCrypto;
 	
-	MochiKit.Signal.connect(document, 'onkeypress', this, 'collectEntropy');
+	Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
 
+	this.collectEntropy();
 	return this;
 }
 
-Clipperz.Crypto.PRNG.KeyboardRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, {
+Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, {
 
-	//-------------------------------------------------------------------------
-
-	'randomBitsCollector': function() {
-		return this._randomBitsCollector;
-	},
-
-	'setRandomBitsCollector': function(aValue) {
-		this._randomBitsCollector = aValue;
+	'intervalTime': function() {
+		return this._intervalTime;
 	},
-
-	'appendRandomBitToRandomBitsCollector': function(aValue) {
-		var collectedBits;
-		var numberOfRandomBitsCollected;
-		
-		numberOfRandomBitsCollected = this.numberOfRandomBitsCollected();
-		collectetBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
-		this.setRandomBitsCollector(collectetBits);
-		numberOfRandomBitsCollected ++;
-		
-		if (numberOfRandomBitsCollected == 8) {
-			this.updateGeneratorWithValue(collectetBits);
-			numberOfRandomBitsCollected = 0;
-			this.setRandomBitsCollector(0);
-		}
-		
-		this.setNumberOfRandomBitsCollected(numberOfRandomBitsCollected)
+	
+	'browserCrypto': function () {
+		return this._browserCrypto;
 	},
 	
 	//-------------------------------------------------------------------------
 
-	'numberOfRandomBitsCollected': function() {
-		return this._numberOfRandomBitsCollected;
-	},
-
-	'setNumberOfRandomBitsCollected': function(aValue) {
-		this._numberOfRandomBitsCollected = aValue;
-	},
+	'collectEntropy': function() {
+		var	bytesToCollect;
 
-	//-------------------------------------------------------------------------
+		if (this.boostMode() == true) {
+			bytesToCollect = 64;
+		} else {
+			bytesToCollect = 8;
+		}
 
-	'collectEntropy': function(anEvent) {
-/*
-		var mouseLocation;
-		var randomBit;
-		
-		mouseLocation = anEvent.mouse().client;
-			
-		randomBit = ((mouseLocation.x ^ mouseLocation.y) & 0x1);
-		this.appendRandomBitToRandomBitsCollector(randomBit);
-*/
-	},
-	
-	//-------------------------------------------------------------------------
+		var randomValuesArray = new Uint8Array(bytesToCollect);
+		this.browserCrypto().getRandomValues(randomValuesArray);
+		for (var i = 0; i < randomValuesArray.length; i++) {
+			this.updateGeneratorWithValue(randomValuesArray[i]);
+		}
 
-	'numberOfRandomBits': function() {
-		return 1;
+		setTimeout(this.collectEntropy, this.intervalTime());
 	},
 	
 	//-------------------------------------------------------------------------
-
-	'pollingFrequency': function() {
-		return 10;
-	},
-
-	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //#############################################################################
 
 Clipperz.Crypto.PRNG.Fortuna = function(args) {
 	var	i,c;
 	
 	args = args || {};
 
 	this._key = args.seed || null;
 	if (this._key == null) {
 		this._counter = 0;
 		this._key = new Clipperz.ByteArray();
 	} else {
 		this._counter = 1;
 	}
 	
 	this._aesKey = null;
 	
 	this._firstPoolReseedLevel = args.firstPoolReseedLevel || 32 || 64;
 	this._numberOfEntropyAccumulators = args.numberOfEntropyAccumulators || 32;
 	
 	this._accumulators = [];
 	c = this.numberOfEntropyAccumulators();
 	for (i=0; i<c; i++) {
 		this._accumulators.push(new Clipperz.Crypto.PRNG.EntropyAccumulator());
 	}
 
 	this._randomnessSources = [];
 	this._reseedCounter = 0;
 	
 	return this;
 }
 
 Clipperz.Crypto.PRNG.Fortuna.prototype = MochiKit.Base.update(null, {
 
 	'toString': function() {
 		return "Clipperz.Crypto.PRNG.Fortuna";
 	},
 
 	//-------------------------------------------------------------------------
 
 	'key': function() {
 		return this._key;
 	},
 
 	'setKey': function(aValue) {
 		this._key = aValue;
 		this._aesKey = null;
 	},
 	
 	'aesKey': function() {
 		if (this._aesKey == null) {
 			this._aesKey = new Clipperz.Crypto.AES.Key({key:this.key()});
 		}
 		
 		return this._aesKey;
 	},
 	
 	'accumulators': function() {
 		return this._accumulators;
 	},
 	
 	'firstPoolReseedLevel': function() {
 		return this._firstPoolReseedLevel;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'reseedCounter': function() {
 		return this._reseedCounter;
 	},
 
 	'incrementReseedCounter': function() {
 		this._reseedCounter = this._reseedCounter +1;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'reseed': function() {
 		var	newKeySeed;
 		var reseedCounter;
 		var	reseedCounterMask;
 		var i, c;
 		
 		newKeySeed = this.key();
 		this.incrementReseedCounter();
 		reseedCounter = this.reseedCounter();
 		
 		c = this.numberOfEntropyAccumulators();
 		reseedCounterMask = 0xffffffff >>> (32 - c);
 		for (i=0; i<c; i++) {
 			if ((i == 0) || ((reseedCounter & (reseedCounterMask >>> (c - i))) == 0)) {
 				newKeySeed.appendBlock(this.accumulators()[i].stack());
 				this.accumulators()[i].resetStack();
 			} 
 		}
 		
 		if (reseedCounter == 1) {
 			c = this.randomnessSources().length;
 			for (i=0; i<c; i++) {
 				this.randomnessSources()[i].setBoostMode(false);
 			}
 		}
 		
 		this.setKey(Clipperz.Crypto.SHA.sha_d256(newKeySeed));
 		if (reseedCounter == 1) {
 Clipperz.log("### PRNG.readyToGenerateRandomBytes");
 			MochiKit.Signal.signal(this, 'readyToGenerateRandomBytes');
 		}
 		MochiKit.Signal.signal(this, 'reseeded');
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'isReadyToGenerateRandomValues': function() {
 		return this.reseedCounter() != 0;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'entropyLevel': function() {
 		return this.accumulators()[0].stack().length() + (this.reseedCounter() * this.firstPoolReseedLevel());
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'counter': function() {
 		return this._counter;
 	},
 	
 	'incrementCounter': function() {
 		this._counter += 1;
 	},
 	
 	'counterBlock': function() {
 		var result;
 
 		result = new Clipperz.ByteArray().appendWords(this.counter(), 0, 0, 0);
 		
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'getRandomBlock': function() {
 		var result;
 
 		result = new Clipperz.ByteArray(Clipperz.Crypto.AES.encryptBlock(this.aesKey(), this.counterBlock().arrayValues()));
 		this.incrementCounter();
 		
 		return result;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'getRandomBytes': function(aSize) {
 		var result;
 
 		if (this.isReadyToGenerateRandomValues()) {
 			var i,c;
 			var newKey;
 			
 			result = new Clipperz.ByteArray();
 		
 			c = Math.ceil(aSize / (128 / 8));
 			for (i=0; i<c; i++) {
 				result.appendBlock(this.getRandomBlock());
 			}
 
 			if (result.length() != aSize) {
 				result = result.split(0, aSize);
 			}
 			
 			newKey = this.getRandomBlock().appendBlock(this.getRandomBlock());
 			this.setKey(newKey);
 		} else {
 Clipperz.logWarning("Fortuna generator has not enough entropy, yet!");
 			throw Clipperz.Crypto.PRNG.exception.NotEnoughEntropy;
 		}
 
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'addRandomByte': function(aSourceId, aPoolId, aRandomValue) {
 		var	selectedAccumulator;
 
 		selectedAccumulator = this.accumulators()[aPoolId];
 		selectedAccumulator.addRandomByte(aRandomValue);
 
 		if (aPoolId == 0) {
 			MochiKit.Signal.signal(this, 'addedRandomByte')
 			if (selectedAccumulator.stack().length() > this.firstPoolReseedLevel()) {
 				this.reseed();
 			}
 		}
 	},
 
 	//-------------------------------------------------------------------------
 	
 	'numberOfEntropyAccumulators': function() {
 		return this._numberOfEntropyAccumulators;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'randomnessSources': function() {
 		return this._randomnessSources;
 	},
 	
 	'addRandomnessSource': function(aRandomnessSource) {
 		aRandomnessSource.setGenerator(this);
 		aRandomnessSource.setSourceId(this.randomnessSources().length);
 		this.randomnessSources().push(aRandomnessSource);
 		
 		if (this.isReadyToGenerateRandomValues() == false) {
 			aRandomnessSource.setBoostMode(true);
 		}
 	},
 
 	//-------------------------------------------------------------------------
 
 	'deferredEntropyCollection': function(aValue) {
 		var result;
 
 
 		if (this.isReadyToGenerateRandomValues()) {
 			result = aValue;
 		} else {
 			var deferredResult;
 
 			deferredResult = new Clipperz.Async.Deferred("PRNG.deferredEntropyCollection");
 			deferredResult.addCallback(MochiKit.Base.partial(MochiKit.Async.succeed, aValue));
 			MochiKit.Signal.connect(this,
 									'readyToGenerateRandomBytes',
 									deferredResult,
 									'callback');
 									
 			result = deferredResult;
 		}
 
 		return result;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'fastEntropyAccumulationForTestingPurpose': function() {
 		while (! this.isReadyToGenerateRandomValues()) {
 			this.addRandomByte(Math.floor(Math.random() * 32), Math.floor(Math.random() * 32), Math.floor(Math.random() * 256));
 		}
 	},
 	
 	//-------------------------------------------------------------------------
-
+/*
 	'dump': function(appendToDoc) {
 		var tbl;
 		var i,c;
 		
 		tbl = document.createElement("table");
 		tbl.border = 0;
 		with (tbl.style) {
 			border = "1px solid lightgrey";
 			fontFamily = 'Helvetica, Arial, sans-serif';
 			fontSize = '8pt';
 			//borderCollapse = "collapse";
 		}
 		var hdr = tbl.createTHead();
 		var hdrtr = hdr.insertRow(0);
 		// document.createElement("tr");
 		{
 			var ntd;
 			
 			ntd = hdrtr.insertCell(0);
 			ntd.style.borderBottom = "1px solid lightgrey";
 			ntd.style.borderRight = "1px solid lightgrey";
 			ntd.appendChild(document.createTextNode("#"));
 
 			ntd = hdrtr.insertCell(1);
 			ntd.style.borderBottom = "1px solid lightgrey";
 			ntd.style.borderRight = "1px solid lightgrey";
 			ntd.appendChild(document.createTextNode("s"));
 
 			ntd = hdrtr.insertCell(2);
 			ntd.colSpan = this.firstPoolReseedLevel();
 			ntd.style.borderBottom = "1px solid lightgrey";
 			ntd.style.borderRight = "1px solid lightgrey";
 			ntd.appendChild(document.createTextNode("base values"));
 			
 			ntd = hdrtr.insertCell(3);
 			ntd.colSpan = 20;
 			ntd.style.borderBottom = "1px solid lightgrey";
 			ntd.appendChild(document.createTextNode("extra values"));
 
 		}
 
 		c = this.accumulators().length;
 		for (i=0; i<c ; i++) {
 			var	currentAccumulator;
 			var bdytr;
 			var bdytd;
 			var ii, cc;
 
 			currentAccumulator = this.accumulators()[i]
 			
 			bdytr = tbl.insertRow(true);
 			
 			bdytd = bdytr.insertCell(0);
 			bdytd.style.borderRight = "1px solid lightgrey";
 			bdytd.style.color = "lightgrey";
 			bdytd.appendChild(document.createTextNode("" + i));
 
 			bdytd = bdytr.insertCell(1);
 			bdytd.style.borderRight = "1px solid lightgrey";
 			bdytd.style.color = "gray";
 			bdytd.appendChild(document.createTextNode("" + currentAccumulator.stack().length()));
 
 
 			cc = Math.max(currentAccumulator.stack().length(), this.firstPoolReseedLevel());
 			for (ii=0; ii<cc; ii++) {
 				var cellText;
 				
 				bdytd = bdytr.insertCell(ii + 2);
 				
 				if (ii < currentAccumulator.stack().length()) {
 					cellText = Clipperz.ByteArray.byteToHex(currentAccumulator.stack().byteAtIndex(ii));
 				} else {
 					cellText = "_";
 				}
 				
 				if (ii == (this.firstPoolReseedLevel() - 1)) {
 					bdytd.style.borderRight = "1px solid lightgrey";
 				}
 				
 				bdytd.appendChild(document.createTextNode(cellText));
 			}
 			
 		}
 		
 
 		if (appendToDoc) {
 			var ne = document.createElement("div");
 			ne.id = "entropyGeneratorStatus";
 			with (ne.style) {
 				fontFamily = "Courier New, monospace";
 				fontSize = "12px";
 				lineHeight = "16px";
 				borderTop = "1px solid black";
 				padding = "10px";
 			}
 			if (document.getElementById(ne.id)) {
 				MochiKit.DOM.swapDOM(ne.id, ne);
 			} else {
 				document.body.appendChild(ne);
 			}
 			ne.appendChild(tbl);
 		}
 
 		return tbl;
 	},
-
+*/
 	//-----------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //#############################################################################
 
 Clipperz.Crypto.PRNG.Random = function(args) {
 	args = args || {};
 //	MochiKit.Base.bindMethods(this);
 
 	return this;
 }
 
 Clipperz.Crypto.PRNG.Random.prototype = MochiKit.Base.update(null, {
 
 	'toString': function() {
 		return "Clipperz.Crypto.PRNG.Random";
 	},
 
 	//-------------------------------------------------------------------------
 
 	'getRandomBytes': function(aSize) {
 //Clipperz.Profile.start("Clipperz.Crypto.PRNG.Random.getRandomBytes");
 		var	result;
 		var i,c;
 		
 		result = new Clipperz.ByteArray()
 		c = aSize || 1;
 		for (i=0; i<c; i++) {
 			result.appendByte((Math.random()*255) & 0xff);
 		}
 		
 //Clipperz.Profile.stop("Clipperz.Crypto.PRNG.Random.getRandomBytes");
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 });
 
 //#############################################################################
 
-_clipperz_crypt_prng_defaultPRNG = null;
+var _clipperz_crypt_prng_defaultPRNG = null;
 
 Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
 	if (_clipperz_crypt_prng_defaultPRNG == null) {
 		_clipperz_crypt_prng_defaultPRNG = new Clipperz.Crypto.PRNG.Fortuna();
 
 		//.............................................................
 		//
 		//		TimeRandomnessSource
 		//
 		//.............................................................
 		{
 			var newRandomnessSource;
 		
 			newRandomnessSource = new Clipperz.Crypto.PRNG.TimeRandomnessSource({intervalTime:111});
 			_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource);
 		}
 
 		//.............................................................
 		//
 		//		MouseRandomnessSource
 		//
 		//.............................................................
 		{
 			var	newRandomnessSource;
 			
 			newRandomnessSource = new Clipperz.Crypto.PRNG.MouseRandomnessSource();
 			_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource);
 		}
 
 		//.............................................................
 		//
-		//		KeyboardRandomnessSource
+		//		CryptoRandomRandomnessSource
 		//
 		//.............................................................
 		{
 			var	newRandomnessSource;
+			var	browserCrypto;
 			
-			newRandomnessSource = new Clipperz.Crypto.PRNG.KeyboardRandomnessSource();
-			_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource);
+			if (window.crypto && window.crypto.getRandomValues) {
+				browserCrypto = window.crypto;
+			} else if (window.msCrypto && window.msCrypto.getRandomValues) {
+				browserCrypto = window.msCrypto;
+			} else {
+				browserCrypto = null;
+			}
+	
+			if (browserCrypto != null) {
+				newRandomnessSource = new Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource({'browserCrypto':browserCrypto});
+				_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource);
+			}
 		}
-
 	}
 
 	return _clipperz_crypt_prng_defaultPRNG;
 };
 
 //#############################################################################
 
 Clipperz.Crypto.PRNG.exception =  {
 	NotEnoughEntropy: new MochiKit.Base.NamedError("Clipperz.Crypto.PRNG.exception.NotEnoughEntropy") 
 };
 
 
 MochiKit.DOM.addLoadEvent(Clipperz.Crypto.PRNG.defaultRandomGenerator);
diff --git a/frontend/gamma/js/Clipperz/Crypto/SRP.js b/frontend/gamma/js/Clipperz/Crypto/SRP.js
index 597e72d..6898dfb 100644
--- a/frontend/gamma/js/Clipperz/Crypto/SRP.js
+++ b/frontend/gamma/js/Clipperz/Crypto/SRP.js
@@ -1,316 +1,345 @@
 /*
 
 Copyright 2008-2013 Clipperz Srl
 
 This file is part of Clipperz, the online password manager.
 For further information about its features and functionalities please
 refer to http://www.clipperz.com.
 
 * Clipperz is free software: you can redistribute it and/or modify it
   under the terms of the GNU Affero General Public License as published
   by the Free Software Foundation, either version 3 of the License, or 
   (at your option) any later version.
 
 * Clipperz is distributed in the hope that it will be useful, but 
   WITHOUT ANY WARRANTY; without even the implied warranty of 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   See the GNU Affero General Public License for more details.
 
 * You should have received a copy of the GNU Affero General Public
   License along with Clipperz. If not, see http://www.gnu.org/licenses/.
 
 */
 
 try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!";
 }  
 
 try { if (typeof(Clipperz.Crypto.BigInt) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.SRP depends on Clipperz.Crypto.BigInt!";
 }  
 
 try { if (typeof(Clipperz.Crypto.PRNG) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.Crypto.SRP depends on Clipperz.Crypto.PRNG!";
 }  
 
 if (typeof(Clipperz.Crypto.SRP) == 'undefined') { Clipperz.Crypto.SRP = {}; }
 
 Clipperz.Crypto.SRP.VERSION = "0.1";
 Clipperz.Crypto.SRP.NAME = "Clipperz.Crypto.SRP";
 
 //#############################################################################
 
 MochiKit.Base.update(Clipperz.Crypto.SRP, {
 
 	'_n': null,
 	'_g': null,
+	'_k': null,
+	
 	//-------------------------------------------------------------------------
 
 	'n': function() {
 		if (Clipperz.Crypto.SRP._n == null) {
 		 	Clipperz.Crypto.SRP._n = new Clipperz.Crypto.BigInt("115b8b692e0e045692cf280b436735c77a5a9e8a9e7ed56c965f87db5b2a2ece3", 16);
 		}
 		
 		return Clipperz.Crypto.SRP._n;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'g': function() {
 		if (Clipperz.Crypto.SRP._g == null) {
 			Clipperz.Crypto.SRP._g = new Clipperz.Crypto.BigInt(2);	//	eventually 5 (as suggested on the Diffi-Helmann documentation)
 		}
 		
 		return Clipperz.Crypto.SRP._g;
 	},
 
+	'k': function() {
+		if (Clipperz.Crypto.SRP._k == null) {
+//			Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt(this.stringHash(this.n().asString() + this.g().asString()), 16);
+			Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16);
+		}
+		
+		return Clipperz.Crypto.SRP._k;
+	},
+	
 	//-----------------------------------------------------------------------------
 
 	'exception': {
 		'InvalidValue': new MochiKit.Base.NamedError("Clipperz.Crypto.SRP.exception.InvalidValue") 
 	},
 
 	//-------------------------------------------------------------------------
 	__syntaxFix__: "syntax fix"
 
 });
 
 //#############################################################################
 //
 //		S R P   C o n n e c t i o n     version 1.0
 //
 //=============================================================================
 Clipperz.Crypto.SRP.Connection = function (args) {
 	args = args || {};
 
 	this._C = args.C;
 	this._P = args.P;
 	this.hash = args.hash;
 
 	this._a = null;
 	this._A = null;
 	
 	this._s = null;
 	this._B = null;
 
 	this._x = null;
 	
 	this._u = null;
 	this._K = null;
 	this._M1 = null;
 	this._M2 = null;
 	
 	this._sessionKey = null;
 
 	return this;
 }
 
 Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, {
 
 	'toString': function () {
 		return "Clipperz.Crypto.SRP.Connection (username: " + this.username() + "). Status: " + this.statusDescription();
 	},
 
 	//-------------------------------------------------------------------------
 
 	'C': function () {
 		return this._C;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'P': function () {
 		return this._P;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'a': function () {
 		if (this._a == null) {
 			this._a = new Clipperz.Crypto.BigInt(Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2), 16);
 //			this._a = new Clipperz.Crypto.BigInt("37532428169486597638072888476611365392249575518156687476805936694442691012367", 10);
 		}
 		
 		return this._a;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'A': function () {
 		if (this._A == null) {
-			//	Warning: this value should be strictly greater than zero: how should we perform this check?
+			//	Warning: this value should be strictly greater than zero
 			this._A = Clipperz.Crypto.SRP.g().powerModule(this.a(), Clipperz.Crypto.SRP.n());
-			
-			if (this._A.equals(0)) {
+			if (this._A.equals(0) || negative(this._A)) {
 				Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0.");
 				throw Clipperz.Crypto.SRP.exception.InvalidValue;
 			}
 		}
 		
 		return this._A;
 	},
 
 	//-------------------------------------------------------------------------
 
 	's': function () {
 		return this._s;
 	},
 
 	'set_s': function(aValue) {
 		this._s = aValue;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'B': function () {
 		return this._B;
 	},
 
 	'set_B': function(aValue) {
-		//	Warning: this value should be strictly greater than zero: how should we perform this check?
-		if (! aValue.equals(0)) {
-			this._B = aValue;
-		} else {
+		//	Warning: this value should be strictly greater than zero
+		this._B = aValue;
+		if (this._B.equals(0) || negative(this._B)) {
 			Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 0.");
 			throw Clipperz.Crypto.SRP.exception.InvalidValue;
 		}
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'x': function () {
 		if (this._x == null) {
 			this._x = new Clipperz.Crypto.BigInt(this.stringHash(this.s().asString(16, 64) + this.P()), 16);
 		}
 		
 		return this._x;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'u': function () {
 		if (this._u == null) {
-			this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.B().asString()), 16);
+			this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.A().asString() + this.B().asString()), 16);
 		}
 		
 		return this._u;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'S': function () {
 		if (this._S == null) {
 			var bigint;
 			var	srp;
 
 			bigint = Clipperz.Crypto.BigInt;
 			srp = 	 Clipperz.Crypto.SRP;
 
 			this._S =	bigint.powerModule(
-								bigint.subtract(this.B(), bigint.powerModule(srp.g(), this.x(), srp.n())),
-								bigint.add(this.a(), bigint.multiply(this.u(), this.x())),
-								srp.n()
+							bigint.subtract(
+								this.B(),
+								bigint.multiply(
+									Clipperz.Crypto.SRP.k(),
+									bigint.powerModule(srp.g(), this.x(), srp.n())
+								)
+							),
+							bigint.add(this.a(), bigint.multiply(this.u(), this.x())),
+							srp.n()
 						)
 		}
 		
 		return this._S;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'K': function () {
 		if (this._K == null) {
 			this._K = this.stringHash(this.S().asString());
 		}
 		
 		return this._K;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'M1': function () {
 		if (this._M1 == null) {
-			this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K());
+//			this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K());
+
+			//	http://srp.stanford.edu/design.html
+			//	User -> Host:  M = H(H(N) xor H(g), H(I), s, A, B, K)
+
+			this._M1 = this.stringHash(
+				"597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529" +
+				this.stringHash(this.C()) +
+				this.s().asString() +
+				this.A().asString() +
+				this.B().asString() +
+				this.K()
+			);
+//console.log("M1", this._M1);
 		}
 		
 		return this._M1;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'M2': function () {
 		if (this._M2 == null) {
 			this._M2 = this.stringHash(this.A().asString(10) + this.M1() + this.K());
+//console.log("M2", this._M2);
 		}
 		
 		return this._M2;
 	},
 
 	//=========================================================================
 
 	'serverSideCredentialsWithSalt': function(aSalt) {
 		var result;
 		var s, x, v;
 		
 		s = aSalt;
 		x = this.stringHash(s + this.P());
 		v = Clipperz.Crypto.SRP.g().powerModule(new Clipperz.Crypto.BigInt(x, 16), Clipperz.Crypto.SRP.n());
 
 		result = {};
 		result['C'] = this.C();
 		result['s'] = s;
 		result['v'] = v.asString(16);
 		
 		return result;
 	},
 	
 	'serverSideCredentials': function() {
 		var result;
 		var s;
 		
 		s = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2);
 
 		result = this.serverSideCredentialsWithSalt(s);
 		
 		return result;
 	},
 	
 	//=========================================================================
 /*
 	'computeServerSide_S': function(b) {
 		var result;
 		var v;
 		var bigint;
 		var	srp;
 
 		bigint = Clipperz.Crypto.BigInt;
 		srp = 	 Clipperz.Crypto.SRP;
 
 		v = new Clipperz.Crypto.BigInt(srpConnection.serverSideCredentialsWithSalt(this.s().asString(16, 64)).v, 16);
 //		_S =  (this.A().multiply(this.v().modPow(this.u(), this.n()))).modPow(this.b(), this.n());
 		result = bigint.powerModule(
 					bigint.multiply(
 						this.A(),
 						bigint.powerModule(v, this.u(), srp.n())
 					), new Clipperz.Crypto.BigInt(b, 10), srp.n()
 				);
 
 		return result;
 	},
 */
 	//=========================================================================
 
 	'stringHash': function(aValue) {
 		var	result;
 
 		result = this.hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
 		
 		return result;
 	},
 	
 	//=========================================================================
 	__syntaxFix__: "syntax fix"
 	
 });
 
 //#############################################################################
diff --git a/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js b/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js
index b806cb7..e5f68a8 100644
--- a/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js
+++ b/frontend/gamma/js/Clipperz/PM/Proxy/Proxy.Offline.DataStore.js
@@ -1,788 +1,803 @@
 /*
 
 Copyright 2008-2013 Clipperz Srl
 
 This file is part of Clipperz, the online password manager.
 For further information about its features and functionalities please
 refer to http://www.clipperz.com.
 
 * Clipperz is free software: you can redistribute it and/or modify it
   under the terms of the GNU Affero General Public License as published
   by the Free Software Foundation, either version 3 of the License, or 
   (at your option) any later version.
 
 * Clipperz is distributed in the hope that it will be useful, but 
   WITHOUT ANY WARRANTY; without even the implied warranty of 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   See the GNU Affero General Public License for more details.
 
 * You should have received a copy of the GNU Affero General Public
   License along with Clipperz. If not, see http://www.gnu.org/licenses/.
 
 */
 
 try { if (typeof(Clipperz.PM.Proxy.Offline) == 'undefined') { throw ""; }} catch (e) {
 	throw "Clipperz.PM.Proxy.Offline.DataStore depends on Clipperz.PM.Proxy.Offline!";
 }  
 
 //=============================================================================
 
 Clipperz.PM.Proxy.Offline.DataStore = function(args) {
 	args = args || {};
 	
 	this._data = args.data || (typeof(_clipperz_dump_data_) != 'undefined' ? _clipperz_dump_data_ : null);
 	this._isReadOnly = (typeof(args.readOnly) == 'undefined' ? true : args.readOnly);
 	this._shouldPayTolls = args.shouldPayTolls || false;
 
 	this._tolls = {};
 	this._currentStaticConnection = null;
-	
+
 	return this;
 }
 
 Clipperz.Base.extend(Clipperz.PM.Proxy.Offline.DataStore, Object, {
 
 	//-------------------------------------------------------------------------
 
 	'isReadOnly': function () {
 		return this._isReadOnly;
 	},
 	
 	//-------------------------------------------------------------------------
 
 	'shouldPayTolls': function() {
 		return this._shouldPayTolls;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'data': function () {
 		return this._data;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'tolls': function () {
 		return this._tolls;
 	},
 
 	//=========================================================================
 
 	'resetData': function() {
 		this._data = {
 			'users': {
 				'catchAllUser': {
 					__masterkey_test_value__: 'masterkey',
 					s: '112233445566778899aabbccddeeff00112233445566778899aabbccddeeff00',
 					v: '112233445566778899aabbccddeeff00112233445566778899aabbccddeeff00'
 				}
 			}
 		};
 	},
 
 	//-------------------------------------------------------------------------
 
 	'setupWithEncryptedData': function(someData) {
 		this._data = Clipperz.Base.deepClone(someData);
 	},
 
 	//-------------------------------------------------------------------------
 
 	'setupWithData': function(someData) {
 		var deferredResult;
 		var resultData;
 		var i, c;
 
 //Clipperz.log(">>> Proxy.Test.setupWithData");
 		resultData = this._data;
 
 		deferredResult = new Clipperz.Async.Deferred("Proxy.Test.seupWithData", {trace:false});
 		c = someData['users'].length;
 
 		for (i=0; i<c; i++) {
 			var	newConnection;
 			var	recordConfiguration;
 
 			deferredResult.addMethod(this, 'userSerializedEncryptedData', someData['users'][i]);
 			deferredResult.addCallback(MochiKit.Base.bind(function(aUserSerializationContext) {
 				resultData['users'][aUserSerializationContext['credentials']['C']] = {
 					's':		aUserSerializationContext['credentials']['s'],
 					'v':		aUserSerializationContext['credentials']['v'],
 					'version':				aUserSerializationContext['data']['connectionVersion'],
 					'userDetails':			aUserSerializationContext['encryptedData']['user']['header'],
 					'userDetailsVersion':	aUserSerializationContext['encryptedData']['user']['version'],
 					'statistics':			aUserSerializationContext['encryptedData']['user']['statistics'],
 					'lock':					aUserSerializationContext['encryptedData']['user']['lock'],
 					'records': 				this.rearrangeRecordsData(aUserSerializationContext['encryptedData']['records'])
 				}
 			}, this));
 		}
 		
 		deferredResult.addCallback(MochiKit.Base.bind(function() {
 			this._data = resultData;
 		}, this));
 		
 		deferredResult.callback();
 //Clipperz.log("<<< Proxy.Test.setupWithData");
 
 		return deferredResult;
 	},
 
 	//=========================================================================
 
 	'getTollForRequestType': function (aRequestType) {
 		var	result;
 		var	targetValue;
 		var cost;
 		
 		targetValue = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2);
 		switch (aRequestType) {
 			case 'REGISTER':
 				cost = 5;
 				break;
 			case 'CONNECT':
 				cost = 5;
 				break;
 			case 'MESSAGE':
 				cost = 2;
 				break;
 		}
 		
 		result = {
 				requestType: aRequestType,
 				targetValue: targetValue,
 				cost: cost
 		}
 
 		if (this.shouldPayTolls()) {
 			this.tolls()[targetValue] = result;
 		}
 
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'checkToll': function (aFunctionName, someParameters) {
 		if (this.shouldPayTolls()) {
 			var localToll;
 			var	tollParameters;
 			
 			tollParameters = someParameters['toll'];
 			localToll = this.tolls()[tollParameters['targetValue']];
 			
 			if (localToll != null) {
 				if (! Clipperz.PM.Toll.validate(tollParameters['targetValue'], tollParameters['toll'], localToll['cost'])) {
 					throw "Toll value too low.";
 				};
 			} else {
 				throw "Missing toll";
 			}
 		}
 	},
 
 	//=========================================================================
 
 	'currentStaticConnection': function () {
 		if (this._currentStaticConnection == null) {
 			this._currentStaticConnection = {};
 		}
 		
 		return this._currentStaticConnection;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'getConnectionForRequest': function (aFunctionName, someParameters) {
 		var	result;
 
 		if (this.shouldPayTolls()) {
 			if ((typeof(someParameters['toll']) != 'undefined') && (typeof(someParameters['toll']['targetValue']) != 'undefined')) {
 				result = this.tolls()[someParameters['toll']['targetValue']]['connection'];
 				if (typeof(result) == 'undefined') {
 					result = {};
 				}
 			} else {
 				result = {};
 			}
 		} else {
 			result = this.currentStaticConnection();
 		}
 
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'storeConnectionForRequestWithConnectionAndResponse': function (aFunctionName, someParameters, aConnection, aResponse) {
 		if (this.shouldPayTolls()) {
 			if ((typeof(aResponse['toll']) != 'undefined')
 			 &&	(typeof(aResponse['toll']['targetValue']) != 'undefined')
 			 &&	(typeof(this.tolls()[aResponse['toll']['targetValue']]) != 'undefined')
 			) {
 				this.tolls()[aResponse['toll']['targetValue']]['connection'] = aConnection;
 			}
 		}
 	},
 
 	//=========================================================================
 
 	'processMessage': function (aFunctionName, someParameters) {
 		var result;
 		var	connection;
 
 		connection = this.getConnectionForRequest(aFunctionName, someParameters);
 
 		switch(aFunctionName) {
 			case 'knock':
 				result = this._knock(connection, someParameters);
 				break;
 			case 'registration':
 				this.checkToll(aFunctionName, someParameters);
 				result = this._registration(connection, someParameters.parameters);
 				break;
 			case 'handshake':
 				this.checkToll(aFunctionName, someParameters);
 				result = this._handshake(connection, someParameters.parameters);
 				break;
 			case 'message':
 				this.checkToll(aFunctionName, someParameters);
 				result = this._message(connection, someParameters.parameters);
 				break;
 			case 'logout':
 				this._currentStaticConnection = null;
 				result = this._logout(connection, someParameters.parameters);
 				break;
 		}
 
 		this.storeConnectionForRequestWithConnectionAndResponse(aFunctionName, someParameters, connection, result);
 
 		return MochiKit.Async.succeed(result);
 	},
 
 	//=========================================================================
 
 	'_knock': function(aConnection, someParameters) {
 		var result;
 		
 		result = {
 			toll: this.getTollForRequestType(someParameters['requestType'])
 		}
 		
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'_registration': function(aConnection, someParameters) {
 		if (this.isReadOnly() == false) {
 			if (typeof(this.data()['users'][someParameters['credentials']['C']]) == 'undefined') {
 				this.data()['users'][someParameters['credentials']['C']] = {
 					's':		someParameters['credentials']['s'],
 					'v':		someParameters['credentials']['v'],
 					'version':	someParameters['credentials']['version'],
 //					'lock':		Clipperz.Crypto.Base.generateRandomSeed(),
 					'userDetails':			someParameters['user']['header'],
 					'statistics':			someParameters['user']['statistics'],
 					'userDetailsVersion':	someParameters['user']['version'],
 					'records':	{}
 				}
 			} else {
 				throw "user already exists";
 			}
 		} else {
-			throw Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly;
+		throw Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly;
 		}
 
 		result = {
 			result: {
 				'lock':		this.data()['users'][someParameters['credentials']['C']]['lock'],
 				'result':	'done'
-			},
+	},
 			toll:   this.getTollForRequestType('CONNECT')
 		}
 
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'_handshake': function(aConnection, someParameters) {
 		var result;
 		var	nextTollRequestType;
 
 		result = {};
 		if (someParameters.message == "connect") {
 			var userData;
 			var randomBytes;
 			var v;
 
 			userData = this.data()['users'][someParameters.parameters.C];
 			
 			if ((typeof(userData) != 'undefined') && (userData['version'] == someParameters.version)) {
 				aConnection['userData'] = userData;
 				aConnection['C'] = someParameters.parameters.C;
 			} else {
 				aConnection['userData'] = this.data()['users']['catchAllUser'];
 			}
 
 			randomBytes = Clipperz.Crypto.Base.generateRandomSeed();
 			aConnection['b'] = new Clipperz.Crypto.BigInt(randomBytes, 16);
 			v = new Clipperz.Crypto.BigInt(aConnection['userData']['v'], 16);
-			aConnection['B'] = v.add(Clipperz.Crypto.SRP.g().powerModule(aConnection['b'], Clipperz.Crypto.SRP.n()));
+			aConnection['B'] = (Clipperz.Crypto.SRP.k().multiply(v)).add(Clipperz.Crypto.SRP.g().powerModule(aConnection['b'], Clipperz.Crypto.SRP.n()));
 			
 			aConnection['A'] = someParameters.parameters.A;
 			
 			result['s'] = aConnection['userData']['s'];
 			result['B'] = aConnection['B'].asString(16);
 			
 			nextTollRequestType = 'CONNECT';
 		} else if (someParameters.message == "credentialCheck") {
-			var v, u, S, A, K, M1;
-			
+			var v, u, s, S, A, K, M1;
+			var stringHash = function (aValue) {
+				return Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(aValue)).toHexString().substring(2);
+			};
+
 			v = new Clipperz.Crypto.BigInt(aConnection['userData']['v'], 16);
-			u = new Clipperz.Crypto.BigInt(Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(aConnection['B'].asString(10))).toHexString(), 16);
 			A = new Clipperz.Crypto.BigInt(aConnection['A'], 16);
+			u = new Clipperz.Crypto.BigInt(Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + aConnection['B'].asString(10))).toHexString(), 16);
+			s = new Clipperz.Crypto.BigInt(aConnection['userData']['s'], 16);
 			S = (A.multiply(v.powerModule(u, Clipperz.Crypto.SRP.n()))).powerModule(aConnection['b'], Clipperz.Crypto.SRP.n());
 
-			K = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(S.asString(10))).toHexString().slice(2);
+			K = stringHash(S.asString(10));
 
-			M1 = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + aConnection['B'].asString(10) + K)).toHexString().slice(2);
+			M1 = stringHash(
+				"597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529" +
+				stringHash(aConnection['C']) +
+				s.asString(10) +
+				A.asString(10) +
+				aConnection['B'].asString(10) +
+				K
+			);
 			if (someParameters.parameters.M1 == M1) {
 				var M2;
 				
-				M2 = Clipperz.PM.Crypto.encryptingFunctions.versions[someParameters.version].hash(new Clipperz.ByteArray(A.asString(10) + someParameters.parameters.M1 + K)).toHexString().slice(2);
+				M2 = stringHash(
+					A.asString(10) +
+					someParameters.parameters.M1 +
+					K
+				);
 				result['M2'] = M2;
 			} else {
 				throw new Error("Client checksum verification failed! Expected <" + M1 + ">, received <" + someParameters.parameters.M1 + ">.", "Error");
 			}
 
 			nextTollRequestType = 'MESSAGE';
 		} else if (someParameters.message == "oneTimePassword") {
 			var otpData;
 			
 			otpData = this.data()['onetimePasswords'][someParameters.parameters.oneTimePasswordKey];
 
 			try {
 				if (typeof(otpData) != 'undefined') {
 					if (otpData['status'] == 'ACTIVE') {
 						if (otpData['key_checksum'] == someParameters.parameters.oneTimePasswordKeyChecksum) {
 							result = {
 								'data':		otpData['data'],
 								'version':	otpData['version']
 							}
 
 							otpData['status'] = 'REQUESTED';
 						} else {
 							otpData['status'] = 'DISABLED';
 							throw "The requested One Time Password has been disabled, due to a wrong keyChecksum";
 						}
 					} else {
 						throw "The requested One Time Password was not active";
 					}
 				} else {
 					throw "The requested One Time Password has not been found"
 				}
 			} catch (exception) {
 				result = {
 					'data':		Clipperz.PM.Crypto.randomKey(),
 					'version':	Clipperz.PM.Connection.communicationProtocol.currentVersion
 				}
 			}
 			nextTollRequestType = 'CONNECT';
 		} else {
 			Clipperz.logError("Clipperz.PM.Proxy.Test.handshake - unhandled message: " + someParameters.message);
 		}
 
 		result = {
 			result: result,
 			toll:   this.getTollForRequestType(nextTollRequestType)
 		}
 
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'_message': function(aConnection, someParameters) {
 		var result;
 
 		result = {};
 
 		//=====================================================================
 		//
 		//		R	E	A	D	-	O	N	L	Y		M e t h o d s
 		//
 		//=====================================================================
 		if (someParameters.message == 'getUserDetails') {
 			var recordsStats;
 			var recordReference;
 
 			recordsStats = {};
 			for (recordReference in aConnection['userData']['records']) {
 				recordsStats[recordReference] = {
 					'updateDate': aConnection['userData']['records'][recordReference]['updateDate']
 				}
 			}
 
 			result['header'] =  this.userDetails(aConnection);
 			result['statistics'] = this.statistics(aConnection);
 			result['maxNumberOfRecords'] = aConnection['userData']['maxNumberOfRecords'];
 			result['version'] = aConnection['userData']['userDetailsVersion'];
 			result['recordsStats'] = recordsStats;
 			
 			if (this.isReadOnly() == false) {
 				var	lock;
 				
 				if (typeof(aConnection['userData']['lock']) == 'undefined') {
 					aConnection['userData']['lock'] = "<<LOCK>>";
 				}
 				
 				result['lock'] = aConnection['userData']['lock'];
 			}
 
 		//=====================================================================
 		} else if (someParameters.message == 'getRecordDetail') {
 /*
 			var	recordData;
 			var currentVersionData;
 			
 			recordData = this.userData()['records'][someParameters['parameters']['reference']];
 			result['reference'] = someParameters['parameters']['reference'];
 			result['data'] = recordData['data'];
 			result['version'] = recordData['version'];
 			result['creationData'] = recordData['creationDate'];
 			result['updateDate'] = recordData['updateDate'];
 			result['accessDate'] = recordData['accessDate'];
 
 			currentVersionData = recordData['versions'][recordData['currentVersion']];
 
 			result['currentVersion'] = {};
 			result['currentVersion']['reference'] = recordData['currentVersion'];
 			result['currentVersion']['version'] = currentVersionData['version'];
 			result['currentVersion']['header'] = currentVersionData['header'];
 			result['currentVersion']['data'] = currentVersionData['data'];
 			result['currentVersion']['creationData'] = currentVersionData['creationDate'];
 			result['currentVersion']['updateDate'] = currentVersionData['updateDate'];
 			result['currentVersion']['accessDate'] = currentVersionData['accessDate'];
 			if (typeof(currentVersionData['previousVersion']) != 'undefined') {
 				result['currentVersion']['previousVersionKey'] = currentVersionData['previousVersionKey'];
 				result['currentVersion']['previousVersion'] = currentVersionData['previousVersion'];
 			}
 */
 			MochiKit.Base.update(result, aConnection['userData']['records'][someParameters['parameters']['reference']]);
 			result['reference'] = someParameters['parameters']['reference'];
 
 		//=====================================================================
 		//
 		//		R	E	A	D	-	W	R	I	T	E		M e t h o d s
 		//
 		//=====================================================================
 		} else if (someParameters.message == 'upgradeUserCredentials') {
 			if (this.isReadOnly() == false) {
 				var parameters;
 				var credentials;
 
 				parameters = someParameters['parameters'];
 				credentials = parameters['credentials'];
 
 				if ((credentials['C'] == null)
 				||	(credentials['s'] == null)
 				||	(credentials['v'] == null)
 				||	(credentials['version'] != Clipperz.PM.Connection.communicationProtocol.currentVersion)
 				) {
 					result = Clipperz.PM.DataModel.User.exception.CredentialUpgradeFailed;
 				} else {
 					var	oldCValue;
 					oldCValue = aConnection['C'];
 
 					this.data()['users'][credentials['C']] = aConnection['userData'];
 					aConnection['C'] = credentials['C'];
 
 					aConnection['userData']['s'] = credentials['s'];
 					aConnection['userData']['v'] = credentials['v'];
 					aConnection['userData']['version'] = credentials['version'];
 
 					aConnection['userData']['userDetails'] = parameters['user']['header'];
 					aConnection['userData']['userDetailsVersion'] = parameters['user']['version'];
 					aConnection['userData']['statistics'] = parameters['user']['statistics'];
 
 					aConnection['userData']['lock'] = parameters['user']['lock'];
 					
 					delete this.data()['users'][oldCValue];
 
 					result = {result:"done", parameters:parameters};
 				}
 			} else {
 				throw Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly;
 			}
 		//=====================================================================
 /*		} else if (someParameters.message == 'updateData') {
 			if (this.isReadOnly() == false) {
 				var i, c;
 
 				if (this.userData()['lock']	!= someParameters['parameters']['user']['lock']) {
 					throw "the lock attribute is not processed correctly"
 				}
 
 				this.userData()['userDetails']			= someParameters['parameters']['user']['header'];
 				this.userData()['statistics']			= someParameters['parameters']['user']['statistics'];
 				this.userData()['userDetailsVersions']	= someParameters['parameters']['user']['version'];
 
 				c = someParameters['parameters']['records'].length;
 				for (i=0; i<c; i++) {
 					var currentRecord;
 					var currentRecordData;
 
 					currentRecordData = someParameters['parameters']['records'][i];
 					currentRecord = this.userData()['records'][currentRecordData['record']['reference']];
 					
 					if (currentRecord == null) {
 					}
 					
 					currentRecord['data'] = currentRecordData['record']['data'];
 					currentRecord['version'] = currentRecordData['record']['version'];
 					currentRecord['currentVersion'] = currentRecordData['currentRecordVersion']['reference'];
 					
 					currentRecord['versions'][currentRecordData['currentRecordVersion']['reference']] = {
 						'data':					currentRecordData['currentRecordVersion']['data'],
 						'version':				currentRecordData['currentRecordVersion']['version'],
 						'previousVersion':		currentRecordData['currentRecordVersion']['previousVersion'],
 						'previousVersionKey':	currentRecordData['currentRecordVersion']['previousVersionKey']
 					}
 				}
 
 				this.userData()['lock'] = Clipperz.PM.Crypto.randomKey();
 				result['lock'] = this.userData()['lock'];
 				result['result'] = 'done';
 			} else {
 				throw Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly;
 			}
 */		//=====================================================================
 		} else if (someParameters.message == 'saveChanges') {
 			if (this.isReadOnly() == false) {
 				var i, c;
 
 				if (aConnection['userData']['lock']	!= someParameters['parameters']['user']['lock']) {
 					throw "the lock attribute is not processed correctly"
 				}
 
 				aConnection['userData']['userDetails']			= someParameters['parameters']['user']['header'];
 				aConnection['userData']['statistics']			= someParameters['parameters']['user']['statistics'];
 				aConnection['userData']['userDetailsVersion']	= someParameters['parameters']['user']['version'];
 
 				c = someParameters['parameters']['records']['updated'].length;
 				for (i=0; i<c; i++) {
 					var currentRecord;
 					var currentRecordData;
 
 					currentRecordData = someParameters['parameters']['records']['updated'][i];
 					currentRecord = aConnection['userData']['records'][currentRecordData['record']['reference']];
 
 					if (
 						(typeof(aConnection['userData']['records'][currentRecordData['record']['reference']]) == 'undefined')
 						&&
 						(typeof(currentRecordData['currentRecordVersion']) == 'undefined')
 					) {
 						throw "Record added without a recordVersion";
 					}
 
 					if (currentRecord == null) {
 						currentRecord = {};
 						currentRecord['versions'] = {};
 						currentRecord['creationDate']	= Clipperz.PM.Date.formatDateWithUTCFormat(new Date());
 						currentRecord['accessDate']		= Clipperz.PM.Date.formatDateWithUTCFormat(new Date());
 
 						aConnection['userData']['records'][currentRecordData['record']['reference']] = currentRecord;
 					}
 					
 					currentRecord['data']		= currentRecordData['record']['data'];
 					currentRecord['version']	= currentRecordData['record']['version'];
 					currentRecord['updateDate']	= Clipperz.PM.Date.formatDateWithUTCFormat(new Date());
 
 					if (typeof(currentRecordData['currentRecordVersion']) != 'undefined') {
 						currentRecord['currentVersion'] = currentRecordData['currentRecordVersion']['reference'];
 						currentRecord['versions'][currentRecordData['currentRecordVersion']['reference']] = {
 							'data':					currentRecordData['currentRecordVersion']['data'],
 							'version':				currentRecordData['currentRecordVersion']['version'],
 							'previousVersion':		currentRecordData['currentRecordVersion']['previousVersion'],
 							'previousVersionKey':	currentRecordData['currentRecordVersion']['previousVersionKey'],
 							'creationDate':	Clipperz.PM.Date.formatDateWithUTCFormat(new Date()),
 							'updateDate':	Clipperz.PM.Date.formatDateWithUTCFormat(new Date()),
 							'accessDate':	Clipperz.PM.Date.formatDateWithUTCFormat(new Date())
 						}
 					}
 				}
 
 				c = someParameters['parameters']['records']['deleted'].length;
 				for (i=0; i<c; i++) {
 					var currentRecordReference;
 
 					currentRecordReference = someParameters['parameters']['records']['deleted'][i];
 					delete aConnection['userData']['records'][currentRecordReference];
 				}
 
 				aConnection['userData']['lock'] = Clipperz.PM.Crypto.randomKey();
 				result['lock'] = aConnection['userData']['lock'];
 				result['result'] = 'done';
 			} else {
 				throw Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly;
 			}
 
 		//=====================================================================
 		//
 		//		U	N	H	A	N	D	L	E	D		M e t h o d
 		//
 		//=====================================================================
 		} else {
 			Clipperz.logError("Clipperz.PM.Proxy.Test.message - unhandled message: " + someParameters.message);
 		}
 	
 		result = {
 			result: result,
 			toll:   this.getTollForRequestType('MESSAGE')
 		}
 
 //		return MochiKit.Async.succeed(result);
 		return result;
 	},
 
 	//-------------------------------------------------------------------------
 
 	'_logout': function(someParameters) {
 //		return MochiKit.Async.succeed({result: 'done'});
 		return {result: 'done'};
 	},
 
 	//=========================================================================
 	//#########################################################################
 
 	'isTestData': function(aConnection) {
 		return (typeof(aConnection['userData']['__masterkey_test_value__']) != 'undefined');
 	},
 
 	'userDetails': function(aConnection) {
 		var result;
 		
 		if (this.isTestData(aConnection)) {
 			var serializedHeader;
 			var version;
 
 //Clipperz.logDebug("### test data");
 			version = aConnection['userData']['userDetailsVersion'];
 			serializedHeader = Clipperz.Base.serializeJSON(aConnection['userData']['userDetails']);
 			result = Clipperz.PM.Crypto.encryptingFunctions.versions[version].encrypt(aConnection['userData']['__masterkey_test_value__'], serializedHeader);
 		} else {
 //Clipperz.logDebug("### NOT test data");
  			result = aConnection['userData']['userDetails'];
 		}
 		
 		return result;
 	},
 	
 	'statistics': function(aConnection) {
 		var result;
 
 		if (aConnection['userData']['statistics'] != null) {
 			if (this.isTestData(aConnection)) {
 				var serializedStatistics;
 				var version;
 
 				version = aConnection['userData']['userDetailsVersion'];
 				serializedStatistics = Clipperz.Base.serializeJSON(aConnection['userData']['statistics']);
 				result = Clipperz.PM.Crypto.encryptingFunctions.versions[version].encrypt(aConnection['userData']['__masterkey_test_value__'], serializedStatistics);
 			} else {
 			 	result = aConnection['userData']['statistics'];
 			}
 		} else {
 			result = null;
 		}
 		
 		return result;
 	},
 
 /*
 	'userSerializedEncryptedData': function(someData) {
 		var deferredResult;
 		var deferredContext;
 		
 		deferredContext = { 'data': someData };
 		
 		deferredResult = new Clipperz.Async.Deferred('Proxy.Test.serializeUserEncryptedData', {trace:false});
 		deferredResult.addCallback(MochiKit.Base.bind(function(aDeferredContext) {
 			aDeferredContext['user'] = this.createUserUsingConfigurationData(aDeferredContext['data']);
 			return aDeferredContext;
 		}, this));
 		deferredResult.addCallback(function(aDeferredContext) {
 //			return aDeferredContext['user'].encryptedDataUsingVersion(aDeferredContext['data']['version']);
 			return aDeferredContext['user'].serializedDataUsingVersion(MochiKit.Base.values(aDeferredContext['user'].records()), aDeferredContext['data']['version']);
 		});
 		deferredResult.addCallback(function(aUserEncryptedData) {
 			deferredContext['encryptedData'] = aUserEncryptedData;
 			return deferredContext;
 		});
 		deferredResult.addCallback(function(aDeferredContext) {
 			var connection;
 
 			connection = new Clipperz.PM.Connection.communicationProtocol.versions[aDeferredContext['data']['connectionVersion']]()
 			aDeferredContext['credentials'] = connection.serverSideUserCredentials(aDeferredContext['user'].username(),aDeferredContext['user'].passphrase());
 
 			return aDeferredContext;
 		});
 
 //		deferredResult.addCallback(function(aDeferredContext) {
 //			return aDeferredContext['user'].serializedDataUsingVersion(MochiKit.Base.values(aDeferredContext['user'].records()), aDeferredContext['data']['version']);
 //		}, deferredContext);
 //		deferredResult.addCallback(function(aUserSerializedData) {
 //		});
 //
 //		deferredResult.addCallback(MochiKit.Async.succeed, deferredContext);
 		deferredResult.callback(deferredContext);
 		
 		return deferredResult;
 	},
 
 	'createUserUsingConfigurationData': function(someData) {
 		var result;
 		var user;
 		var recordLabel;
 
 		user = new Clipperz.PM.DataModel.User();
 		user.initForTests();
 		user.setUsername(someData['username']);
 		user.setPassphrase(someData['passphrase']);
 
 		for (recordLabel in someData['records']) {
 			var recordData;
 			var record;
 			var i, c;
 			
 			recordData = someData['records'][recordLabel];
 			record = new Clipperz.PM.DataModel.Record({user:user, label:recordLabel});
 			record.setNotes(recordData['notes']);
 			
 			c = recordData['fields'].length;
 			for (i=0; i<c; i++) {
 				var recordField;
 				
 				recordField = new Clipperz.PM.DataModel.RecordField();
 				recordField.setLabel(recordData['fields'][i]['name']);
 				recordField.setValue(recordData['fields'][i]['value']);
 				recordField.setType(recordData['fields'][i]['type']);
 				record.addField(recordField);
 			}
 			user.addRecord(record, true);
 		}
 		
 		result = user;
 		
 		return result;
 	},
 */
 	//=========================================================================
 	__syntaxFix__: "syntax fix"
 });
 
 Clipperz.PM.Proxy.Offline.DataStore['exception'] = {
 	'ReadOnly': 		new MochiKit.Base.NamedError("Clipperz.PM.Proxy.Offline.DataStore.exception.ReadOnly")
 };
\ No newline at end of file