Diffstat (limited to 'frontend/beta/js/Clipperz/Crypto') (more/less context) (ignore whitespace changes)
-rw-r--r-- | frontend/beta/js/Clipperz/Crypto/PRNG.js | 130 | ||||
-rw-r--r-- | frontend/beta/js/Clipperz/Crypto/SRP.js | 67 |
2 files changed, 86 insertions, 111 deletions
diff --git a/frontend/beta/js/Clipperz/Crypto/PRNG.js b/frontend/beta/js/Clipperz/Crypto/PRNG.js index b5c3f8a..6fdeca4 100644 --- a/frontend/beta/js/Clipperz/Crypto/PRNG.js +++ b/frontend/beta/js/Clipperz/Crypto/PRNG.js @@ -194,18 +194,12 @@ Clipperz.Crypto.PRNG.TimeRandomnessSource.prototype = MochiKit.Base.update(new C 'numberOfRandomBits': function() { return 5; }, //------------------------------------------------------------------------- - - 'pollingFrequency': function() { - return 10; - }, - - //------------------------------------------------------------------------- __syntaxFix__: "syntax fix" }); //***************************************************************************** Clipperz.Crypto.PRNG.MouseRandomnessSource = function(args) { @@ -242,18 +236,18 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new '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) }, @@ -286,102 +280,60 @@ Clipperz.Crypto.PRNG.MouseRandomnessSource.prototype = MochiKit.Base.update(new '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; - }, +Clipperz.Crypto.PRNG.CryptoRandomRandomnessSource.prototype = MochiKit.Base.update(new Clipperz.Crypto.PRNG.RandomnessSource, { - '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) { @@ -604,35 +556,29 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!"); //------------------------------------------------------------------------- '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; }, //------------------------------------------------------------------------- @@ -640,13 +586,13 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!"); 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; @@ -746,13 +692,13 @@ MochiKit.Logging.logWarning("Fortuna generator has not enough entropy, yet!"); } ne.appendChild(tbl); } return tbl; }, - +*/ //----------------------------------------------------------------------------- __syntaxFix__: "syntax fix" }); //############################################################################# @@ -821,22 +767,32 @@ Clipperz.Crypto.PRNG.defaultRandomGenerator = function() { 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; }; //############################################################################# diff --git a/frontend/beta/js/Clipperz/Crypto/SRP.js b/frontend/beta/js/Clipperz/Crypto/SRP.js index 8cc80ba..8c522ad 100644 --- a/frontend/beta/js/Clipperz/Crypto/SRP.js +++ b/frontend/beta/js/Clipperz/Crypto/SRP.js @@ -41,12 +41,14 @@ 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); } @@ -61,12 +63,21 @@ MochiKit.Base.update(Clipperz.Crypto.SRP, { 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") }, @@ -126,40 +137,36 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, { //------------------------------------------------------------------------- '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); -//MochiKit.Logging.logDebug("SRP a: " + this._a); } 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)) { -MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0."); + if (this._A.equals(0) || negative(this._A)) { + MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0."); throw Clipperz.Crypto.SRP.exception.InvalidValue; } -//MochiKit.Logging.logDebug("SRP A: " + this._A); } return this._A; }, //------------------------------------------------------------------------- 's': function () { return this._s; -//MochiKit.Logging.logDebug("SRP s: " + this._S); }, 'set_s': function(aValue) { this._s = aValue; }, @@ -167,39 +174,35 @@ MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to '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; -//MochiKit.Logging.logDebug("SRP B: " + this._B); - } else { -MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 0."); + // Warning: this value should be strictly greater than zero + this._B = aValue; + if (this._B.equals(0) || negative(this._B)) { + MochiKit.Logging.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); -//MochiKit.Logging.logDebug("SRP x: " + this._x); } return this._x; }, //------------------------------------------------------------------------- 'u': function () { if (this._u == null) { - this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.B().asString()), 16); -//MochiKit.Logging.logDebug("SRP u: " + this._u); + this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.A().asString() + this.B().asString()), 16); } return this._u; }, //------------------------------------------------------------------------- @@ -210,50 +213,66 @@ MochiKit.Logging.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 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() ) -//MochiKit.Logging.logDebug("SRP S: " + this._S); } return this._S; }, //------------------------------------------------------------------------- 'K': function () { if (this._K == null) { this._K = this.stringHash(this.S().asString()); -//MochiKit.Logging.logDebug("SRP K: " + this._K); } return this._K; }, //------------------------------------------------------------------------- 'M1': function () { if (this._M1 == null) { - this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K()); -//MochiKit.Logging.logDebug("SRP M1: " + this._M1); +// 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()); -//MochiKit.Logging.logDebug("SRP M2: " + this._M2); +//console.log("M2", this._M2); } return this._M2; }, //========================================================================= |