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Code Issues Releases Wiki Activity

Mitigation for vulnerability CLP-01-018

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This commit is contained in:
Giulio Cesare Solaroli 2014-06-19 12:32:07 +02:00
parent 0422224521
commit a6852c9313
No known key found for this signature in database
GPG Key ID: 22E34C908F02CBA2
3 changed files with 150 additions and 266 deletions
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136
frontend/beta/js/Clipperz/Crypto/PRNG.js
View File

@ -196,12 +196,6 @@ Clipperz.Crypto.PRNG.TimeRandomnessSource.prototype = MochiKit.Base.update(new C
return 5; return 5;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -245,12 +239,12 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
var numberOfRandomBitsCollected; var numberOfRandomBitsCollected;
numberOfRandomBitsCollected = this.numberOfRandomBitsCollected(); numberOfRandomBitsCollected = this.numberOfRandomBitsCollected();
collectetBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected); collectedBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
this.setRandomBitsCollector(collectetBits); this.setRandomBitsCollector(collectedBits);
numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent(); numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent();
if (numberOfRandomBitsCollected == 8) { if (numberOfRandomBitsCollected == 8) {
this.updateGeneratorWithValue(collectetBits); this.updateGeneratorWithValue(collectedBits);
numberOfRandomBitsCollected = 0; numberOfRandomBitsCollected = 0;
this.setRandomBitsCollector(0); this.setRandomBitsCollector(0);
} }
@ -288,94 +282,52 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
return 1; return 1;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
//***************************************************************************** //*****************************************************************************
Clipperz.Crypto.PRNG.KeyboardRandomnessSource = function(args) { Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource = function(args) {
args = args || {}; args = args || {};
this._intervalTime = args.intervalTime || 1000;
this._browserCrypto = args.browserCrypto;
Clipperz.Crypto.PRNG.RandomnessSource.call(this, args); Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
this._randomBitsCollector = 0; this.collectEntropy();
this._numberOfRandomBitsCollected = 0;
MochiKit.Signal.connect(document, 'onkeypress', this, 'collectEntropy');
return this; 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, {
'intervalTime': function() {
return this._intervalTime;
},
'browserCrypto': function () {
return this._browserCrypto;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
'randomBitsCollector': function() { 'collectEntropy': function() {
return this._randomBitsCollector; var bytesToCollect;
},
'setRandomBitsCollector': function(aValue) { if (this.boostMode() == true) {
this._randomBitsCollector = aValue; bytesToCollect = 8;
}, } else {
bytesToCollect = 32;
'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) var randomValuesArray = new Uint8Array(bytesToCollect);
}, this.browserCrypto().getRandomValues(randomValuesArray);
for (var i = 0; i < randomValuesArray.length; i++) {
this.updateGeneratorWithValue(randomValuesArray[i]);
}
//------------------------------------------------------------------------- setTimeout(this.collectEntropy, this.intervalTime());
'numberOfRandomBitsCollected': function() {
return this._numberOfRandomBitsCollected;
},
'setNumberOfRandomBitsCollected': function(aValue) {
this._numberOfRandomBitsCollected = aValue;
},
//-------------------------------------------------------------------------
'collectEntropy': function(anEvent) {
/*
var mouseLocation;
var randomBit;
mouseLocation = anEvent.mouse().client;
randomBit = ((mouseLocation.x ^ mouseLocation.y) & 0x1);
this.appendRandomBitToRandomBitsCollector(randomBit);
*/
},
//-------------------------------------------------------------------------
'numberOfRandomBits': function() {
return 1;
},
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
@ -607,21 +559,16 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
'deferredEntropyCollection': function(aValue) { 'deferredEntropyCollection': function(aValue) {
var result; var result;
//MochiKit.Logging.logDebug(">>> PRNG.deferredEntropyCollection");
if (this.isReadyToGenerateRandomValues()) { if (this.isReadyToGenerateRandomValues()) {
//MochiKit.Logging.logDebug("--- PRNG.deferredEntropyCollection - 1");
result = aValue; result = aValue;
} else { } else {
//MochiKit.Logging.logDebug("--- PRNG.deferredEntropyCollection - 2");
var deferredResult; var deferredResult;
Clipperz.NotificationCenter.notify(this, 'updatedProgressState', 'collectingEntropy', true); Clipperz.NotificationCenter.notify(this, 'updatedProgressState', 'collectingEntropy', true);
deferredResult = new MochiKit.Async.Deferred(); deferredResult = new MochiKit.Async.Deferred();
// deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("1.2.1 - PRNG.deferredEntropyCollection - 1: " + res); return res;});
deferredResult.addCallback(MochiKit.Base.partial(MochiKit.Async.succeed, aValue)); deferredResult.addCallback(MochiKit.Base.partial(MochiKit.Async.succeed, aValue));
// deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("1.2.2 - PRNG.deferredEntropyCollection - 2: " + res); return res;});
MochiKit.Signal.connect(this, MochiKit.Signal.connect(this,
'readyToGenerateRandomBytes', 'readyToGenerateRandomBytes',
deferredResult, deferredResult,
@ -629,7 +576,6 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
result = deferredResult; result = deferredResult;
} }
//MochiKit.Logging.logDebug("<<< PRNG.deferredEntropyCollection - result: " + result);
return result; return result;
}, },
@ -643,7 +589,7 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
/*
'dump': function(appendToDoc) { 'dump': function(appendToDoc) {
var tbl; var tbl;
var i,c; var i,c;
@ -749,7 +695,7 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
return tbl; return tbl;
}, },
*/
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -824,16 +770,26 @@ Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
//............................................................. //.............................................................
// //
// KeyboardRandomnessSource // CryptoRandomRandomnessSource
// //
//............................................................. //.............................................................
{ {
var newRandomnessSource; var newRandomnessSource;
var browserCrypto;
newRandomnessSource = new Clipperz.Crypto.PRNG.KeyboardRandomnessSource(); if (window.crypto && window.crypto.getRandomValues) {
_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource); 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; return _clipperz_crypt_prng_defaultPRNG;

134
frontend/delta/js/Clipperz/Crypto/PRNG.js
View File

@ -21,6 +21,8 @@ refer to http://www.clipperz.com.
*/ */
"use strict";
try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) { try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) {
throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!"; throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!";
} }
@ -196,12 +198,6 @@ Clipperz.Crypto.PRNG.TimeRandomnessSource.prototype = MochiKit.Base.update(new C
return 5; return 5;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -245,12 +241,12 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
var numberOfRandomBitsCollected; var numberOfRandomBitsCollected;
numberOfRandomBitsCollected = this.numberOfRandomBitsCollected(); numberOfRandomBitsCollected = this.numberOfRandomBitsCollected();
collectetBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected); collectedBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
this.setRandomBitsCollector(collectetBits); this.setRandomBitsCollector(collectedBits);
numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent(); numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent();
if (numberOfRandomBitsCollected == 8) { if (numberOfRandomBitsCollected == 8) {
this.updateGeneratorWithValue(collectetBits); this.updateGeneratorWithValue(collectedBits);
numberOfRandomBitsCollected = 0; numberOfRandomBitsCollected = 0;
this.setRandomBitsCollector(0); this.setRandomBitsCollector(0);
} }
@ -288,94 +284,52 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
return 1; return 1;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
//***************************************************************************** //*****************************************************************************
Clipperz.Crypto.PRNG.KeyboardRandomnessSource = function(args) { Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource = function(args) {
args = args || {}; args = args || {};
this._intervalTime = args.intervalTime || 1000;
this._browserCrypto = args.browserCrypto;
Clipperz.Crypto.PRNG.RandomnessSource.call(this, args); Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
this._randomBitsCollector = 0; this.collectEntropy();
this._numberOfRandomBitsCollected = 0;
MochiKit.Signal.connect(document, 'onkeypress', this, 'collectEntropy');
return this; 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, {
'intervalTime': function() {
return this._intervalTime;
},
'browserCrypto': function () {
return this._browserCrypto;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
'randomBitsCollector': function() { 'collectEntropy': function() {
return this._randomBitsCollector; var bytesToCollect;
},
'setRandomBitsCollector': function(aValue) { if (this.boostMode() == true) {
this._randomBitsCollector = aValue; bytesToCollect = 8;
}, } else {
bytesToCollect = 32;
'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) var randomValuesArray = new Uint8Array(bytesToCollect);
}, this.browserCrypto().getRandomValues(randomValuesArray);
for (var i = 0; i < randomValuesArray.length; i++) {
this.updateGeneratorWithValue(randomValuesArray[i]);
}
//------------------------------------------------------------------------- setTimeout(this.collectEntropy, this.intervalTime());
'numberOfRandomBitsCollected': function() {
return this._numberOfRandomBitsCollected;
},
'setNumberOfRandomBitsCollected': function(aValue) {
this._numberOfRandomBitsCollected = aValue;
},
//-------------------------------------------------------------------------
'collectEntropy': function(anEvent) {
/*
var mouseLocation;
var randomBit;
mouseLocation = anEvent.mouse().client;
randomBit = ((mouseLocation.x ^ mouseLocation.y) & 0x1);
this.appendRandomBitToRandomBitsCollector(randomBit);
*/
},
//-------------------------------------------------------------------------
'numberOfRandomBits': function() {
return 1;
},
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
@ -635,7 +589,7 @@ Clipperz.logWarning("Fortuna generator has not enough entropy, yet!");
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
/*
'dump': function(appendToDoc) { 'dump': function(appendToDoc) {
var tbl; var tbl;
var i,c; var i,c;
@ -741,7 +695,7 @@ Clipperz.logWarning("Fortuna generator has not enough entropy, yet!");
return tbl; return tbl;
}, },
*/
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -784,7 +738,7 @@ Clipperz.Crypto.PRNG.Random.prototype = MochiKit.Base.update(null, {
//############################################################################# //#############################################################################
_clipperz_crypt_prng_defaultPRNG = null; var _clipperz_crypt_prng_defaultPRNG = null;
Clipperz.Crypto.PRNG.defaultRandomGenerator = function() { Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
if (_clipperz_crypt_prng_defaultPRNG == null) { if (_clipperz_crypt_prng_defaultPRNG == null) {
@ -816,16 +770,26 @@ Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
//............................................................. //.............................................................
// //
// KeyboardRandomnessSource // CryptoRandomRandomnessSource
// //
//............................................................. //.............................................................
{ {
var newRandomnessSource; var newRandomnessSource;
var browserCrypto;
newRandomnessSource = new Clipperz.Crypto.PRNG.KeyboardRandomnessSource(); if (window.crypto && window.crypto.getRandomValues) {
_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource); 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; return _clipperz_crypt_prng_defaultPRNG;

134
frontend/gamma/js/Clipperz/Crypto/PRNG.js
View File

@ -21,6 +21,8 @@ refer to http://www.clipperz.com.
*/ */
"use strict";
try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) { try { if (typeof(Clipperz.ByteArray) == 'undefined') { throw ""; }} catch (e) {
throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!"; throw "Clipperz.Crypto.PRNG depends on Clipperz.ByteArray!";
} }
@ -196,12 +198,6 @@ Clipperz.Crypto.PRNG.TimeRandomnessSource.prototype = MochiKit.Base.update(new C
return 5; return 5;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -245,12 +241,12 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
var numberOfRandomBitsCollected; var numberOfRandomBitsCollected;
numberOfRandomBitsCollected = this.numberOfRandomBitsCollected(); numberOfRandomBitsCollected = this.numberOfRandomBitsCollected();
collectetBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected); collectedBits = this.randomBitsCollector() | (aValue << numberOfRandomBitsCollected);
this.setRandomBitsCollector(collectetBits); this.setRandomBitsCollector(collectedBits);
numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent(); numberOfRandomBitsCollected += this.numberOfBitsToCollectAtEachEvent();
if (numberOfRandomBitsCollected == 8) { if (numberOfRandomBitsCollected == 8) {
this.updateGeneratorWithValue(collectetBits); this.updateGeneratorWithValue(collectedBits);
numberOfRandomBitsCollected = 0; numberOfRandomBitsCollected = 0;
this.setRandomBitsCollector(0); this.setRandomBitsCollector(0);
} }
@ -288,94 +284,52 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new
return 1; return 1;
}, },
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
//***************************************************************************** //*****************************************************************************
Clipperz.Crypto.PRNG.KeyboardRandomnessSource = function(args) { Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource = function(args) {
args = args || {}; args = args || {};
this._intervalTime = args.intervalTime || 1000;
this._browserCrypto = args.browserCrypto;
Clipperz.Crypto.PRNG.RandomnessSource.call(this, args); Clipperz.Crypto.PRNG.RandomnessSource.call(this, args);
this._randomBitsCollector = 0; this.collectEntropy();
this._numberOfRandomBitsCollected = 0;
MochiKit.Signal.connect(document, 'onkeypress', this, 'collectEntropy');
return this; 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, {
'intervalTime': function() {
return this._intervalTime;
},
'browserCrypto': function () {
return this._browserCrypto;
},
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
'randomBitsCollector': function() { 'collectEntropy': function() {
return this._randomBitsCollector; var bytesToCollect;
},
'setRandomBitsCollector': function(aValue) { if (this.boostMode() == true) {
this._randomBitsCollector = aValue; bytesToCollect = 8;
}, } else {
bytesToCollect = 32;
'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) var randomValuesArray = new Uint8Array(bytesToCollect);
}, this.browserCrypto().getRandomValues(randomValuesArray);
for (var i = 0; i < randomValuesArray.length; i++) {
this.updateGeneratorWithValue(randomValuesArray[i]);
}
//------------------------------------------------------------------------- setTimeout(this.collectEntropy, this.intervalTime());
'numberOfRandomBitsCollected': function() {
return this._numberOfRandomBitsCollected;
},
'setNumberOfRandomBitsCollected': function(aValue) {
this._numberOfRandomBitsCollected = aValue;
},
//-------------------------------------------------------------------------
'collectEntropy': function(anEvent) {
/*
var mouseLocation;
var randomBit;
mouseLocation = anEvent.mouse().client;
randomBit = ((mouseLocation.x ^ mouseLocation.y) & 0x1);
this.appendRandomBitToRandomBitsCollector(randomBit);
*/
},
//-------------------------------------------------------------------------
'numberOfRandomBits': function() {
return 1;
},
//-------------------------------------------------------------------------
'pollingFrequency': function() {
return 10;
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
@ -635,7 +589,7 @@ Clipperz.logWarning("Fortuna generator has not enough entropy, yet!");
}, },
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
/*
'dump': function(appendToDoc) { 'dump': function(appendToDoc) {
var tbl; var tbl;
var i,c; var i,c;
@ -741,7 +695,7 @@ Clipperz.logWarning("Fortuna generator has not enough entropy, yet!");
return tbl; return tbl;
}, },
*/
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
__syntaxFix__: "syntax fix" __syntaxFix__: "syntax fix"
}); });
@ -784,7 +738,7 @@ Clipperz.Crypto.PRNG.Random.prototype = MochiKit.Base.update(null, {
//############################################################################# //#############################################################################
_clipperz_crypt_prng_defaultPRNG = null; var _clipperz_crypt_prng_defaultPRNG = null;
Clipperz.Crypto.PRNG.defaultRandomGenerator = function() { Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
if (_clipperz_crypt_prng_defaultPRNG == null) { if (_clipperz_crypt_prng_defaultPRNG == null) {
@ -816,16 +770,26 @@ Clipperz.Crypto.PRNG.defaultRandomGenerator = function() {
//............................................................. //.............................................................
// //
// KeyboardRandomnessSource // CryptoRandomRandomnessSource
// //
//............................................................. //.............................................................
{ {
var newRandomnessSource; var newRandomnessSource;
var browserCrypto;
newRandomnessSource = new Clipperz.Crypto.PRNG.KeyboardRandomnessSource(); if (window.crypto && window.crypto.getRandomValues) {
_clipperz_crypt_prng_defaultPRNG.addRandomnessSource(newRandomnessSource); 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; return _clipperz_crypt_prng_defaultPRNG;