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-rw-r--r--frontend/beta/js/Clipperz/Crypto/PRNG.js126
1 files changed, 41 insertions, 85 deletions
diff --git a/frontend/beta/js/Clipperz/Crypto/PRNG.js b/frontend/beta/js/Clipperz/Crypto/PRNG.js
index b5c3f8a..92966d0 100644
--- a/frontend/beta/js/Clipperz/Crypto/PRNG.js
+++ b/frontend/beta/js/Clipperz/Crypto/PRNG.js
@@ -168,243 +168,195 @@ Clipperz.Crypto.PRNG.TimeRandomnessSource = function(args) {
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, {
-
- //-------------------------------------------------------------------------
-
- 'randomBitsCollector': function() {
- return this._randomBitsCollector;
- },
-
- 'setRandomBitsCollector': function(aValue) {
- this._randomBitsCollector = aValue;
- },
-
- '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)
- },
-
- //-------------------------------------------------------------------------
+Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, {
- 'numberOfRandomBitsCollected': function() {
- return this._numberOfRandomBitsCollected;
+ 'intervalTime': function() {
+ return this._intervalTime;
},
- 'setNumberOfRandomBitsCollected': function(aValue) {
- this._numberOfRandomBitsCollected = aValue;
+ 'browserCrypto': function () {
+ return this._browserCrypto;
},
//-------------------------------------------------------------------------
- 'collectEntropy': function(anEvent) {
-/*
- var mouseLocation;
- var randomBit;
-
- mouseLocation = anEvent.mouse().client;
-
- randomBit = ((mouseLocation.x ^ mouseLocation.y) & 0x1);
- this.appendRandomBitToRandomBitsCollector(randomBit);
-*/
- },
-
- //-------------------------------------------------------------------------
+ 'collectEntropy': function() {
+ var bytesToCollect;
- 'numberOfRandomBits': function() {
- return 1;
- },
+ if (this.boostMode() == true) {
+ bytesToCollect = 8;
+ } else {
+ bytesToCollect = 32;
+ }
- //-------------------------------------------------------------------------
+ var randomValuesArray = new Uint8Array(bytesToCollect);
+ this.browserCrypto().getRandomValues(randomValuesArray);
+ for (var i = 0; i < randomValuesArray.length; i++) {
+ this.updateGeneratorWithValue(randomValuesArray[i]);
+ }
- 'pollingFrequency': function() {
- return 10;
+ setTimeout(this.collectEntropy, this.intervalTime());
},
//-------------------------------------------------------------------------
__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());
}
@@ -578,101 +530,95 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
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;
-//MochiKit.Logging.logDebug(">>> PRNG.deferredEntropyCollection");
if (this.isReadyToGenerateRandomValues()) {
-//MochiKit.Logging.logDebug("--- PRNG.deferredEntropyCollection - 1");
result = aValue;
} else {
-//MochiKit.Logging.logDebug("--- PRNG.deferredEntropyCollection - 2");
var deferredResult;
Clipperz.NotificationCenter.notify(this, 'updatedProgressState', 'collectingEntropy', true);
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.addBoth(function(res) {MochiKit.Logging.logDebug("1.2.2 - PRNG.deferredEntropyCollection - 2: " + res); return res;});
MochiKit.Signal.connect(this,
'readyToGenerateRandomBytes',
deferredResult,
'callback');
result = deferredResult;
}
-//MochiKit.Logging.logDebug("<<< PRNG.deferredEntropyCollection - result: " + result);
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";
@@ -720,65 +666,65 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!");
}
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);
}
@@ -795,55 +741,65 @@ Clipperz.Crypto.PRNG.Random.prototype = MochiKit.Base.update(null, {
_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);