Diffstat (limited to 'frontend/gamma/js/ClipperzCryptoLibrary/ECC/BinaryField/Curve.js') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | frontend/gamma/js/ClipperzCryptoLibrary/ECC/BinaryField/Curve.js | 545 |
1 files changed, 0 insertions, 545 deletions
diff --git a/frontend/gamma/js/ClipperzCryptoLibrary/ECC/BinaryField/Curve.js b/frontend/gamma/js/ClipperzCryptoLibrary/ECC/BinaryField/Curve.js deleted file mode 100644 index 9c61bab..0000000 --- a/frontend/gamma/js/ClipperzCryptoLibrary/ECC/BinaryField/Curve.js +++ b/dev/null @@ -1,545 +0,0 @@ -/* - -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.ECC depends on Clipperz.ByteArray!"; -//} -if (typeof(Clipperz.Crypto.ECC) == 'undefined') { Clipperz.Crypto.ECC = {}; } -if (typeof(Clipperz.Crypto.ECC.BinaryField) == 'undefined') { Clipperz.Crypto.ECC.BinaryField = {}; } - -Clipperz.Crypto.ECC.BinaryField.Curve = function(args) { - args = args || {}; - - this._modulus = args.modulus; - - this._a = args.a; - this._b = args.b; - this._G = args.G; - this._r = args.r; - this._h = args.h; - - this._finiteField = null; - - return this; -} - -Clipperz.Crypto.ECC.BinaryField.Curve.prototype = MochiKit.Base.update(null, { - - 'asString': function() { - return "Clipperz.Crypto.ECC.BinaryField.Curve"; - }, - - //----------------------------------------------------------------------------- - - 'modulus': function() { - return this._modulus; - }, - - 'a': function() { - return this._a; - }, - - 'b': function() { - return this._b; - }, - - 'G': function() { - return this._G; - }, - - 'r': function() { - return this._r; - }, - - 'h': function() { - return this._h; - }, - - //----------------------------------------------------------------------------- - - 'finiteField': function() { - if (this._finiteField == null) { - this._finiteField = new Clipperz.Crypto.ECC.BinaryField.FiniteField({modulus:this.modulus()}) - } - - return this._finiteField; - }, - - //----------------------------------------------------------------------------- - - 'negate': function(aPointA) { - var result; - - result = new Clipperz.Crypto.ECC.Point({x:aPointA.x(), y:this.finiteField().add(aPointA.y(), aPointA.x())}) - - return result; - }, - - //----------------------------------------------------------------------------- - - 'add': function(aPointA, aPointB) { - var result; - -//console.log(">>> ECC.BinaryField.Curve.add"); - if (aPointA.isZero()) { -//console.log("--- pointA == zero"); - result = aPointB; - } else if (aPointB.isZero()) { -//console.log("--- pointB == zero"); - result = aPointA; - } else if ( (aPointA.x().compare(aPointB.x()) == 0) && ((aPointA.y().compare(aPointB.y()) != 0) || aPointB.x().isZero())) { -//console.log("compare A.x - B.x: ", aPointA.x().compare(aPointB.x())); -//console.log("compare A.y - B.y: ", (aPointA.y().compare(aPointB.y()) != 0)); -//console.log("compare B.x.isZero(): ", aPointB.x().isZero()); - -//console.log("--- result = zero"); - result = new Clipperz.Crypto.ECC.BinaryField.Point({x:Clipperz.Crypto.ECC.BinaryField.Value.O, y:Clipperz.Crypto.ECC.BinaryField.Value.O}); - } else { -//console.log("--- result = ELSE"); - var f2m; - var x, y; - var lambda; - var aX, aY, bX, bY; - - aX = aPointA.x()._value; - aY = aPointA.y()._value; - bX = aPointB.x()._value; - bY = aPointB.y()._value; - - f2m = this.finiteField(); - - if (aPointA.x().compare(aPointB.x()) != 0) { -//console.log(" a.x != b.x"); - lambda = f2m._fastMultiply( - f2m._add(aY, bY), - f2m._inverse(f2m._add(aX, bX)) - ); - x = f2m._add(this.a()._value, f2m._square(lambda)); - f2m._overwriteAdd(x, lambda); - f2m._overwriteAdd(x, aX); - f2m._overwriteAdd(x, bX); - } else { -//console.log(" a.x == b.x"); - lambda = f2m._add(bX, f2m._fastMultiply(bY, f2m._inverse(bX))); -//console.log(" lambda: " + lambda.asString(16)); - x = f2m._add(this.a()._value, f2m._square(lambda)); -//console.log(" x (step 1): " + x.asString(16)); - f2m._overwriteAdd(x, lambda); -//console.log(" x (step 2): " + x.asString(16)); - } - - y = f2m._fastMultiply(f2m._add(bX, x), lambda); -//console.log(" y (step 1): " + y.asString(16)); - f2m._overwriteAdd(y, x); -//console.log(" y (step 2): " + y.asString(16)); - f2m._overwriteAdd(y, bY); -//console.log(" y (step 3): " + y.asString(16)); - - result = new Clipperz.Crypto.ECC.BinaryField.Point({x:new Clipperz.Crypto.ECC.BinaryField.Value(x), y:new Clipperz.Crypto.ECC.BinaryField.Value(y)}) - } -//console.log("<<< ECC.BinaryField.Curve.add"); - - return result; - }, - - //----------------------------------------------------------------------------- - - 'addTwice': function(aPointA) { - return this.add(aPointA, aPointA); - }, - - //----------------------------------------------------------------------------- - - 'overwriteAdd': function(aPointA, aPointB) { - if (aPointA.isZero()) { -// result = aPointB; - aPointA._x._value = aPointB._x._value; - aPointA._y._value = aPointB._y._value; - } else if (aPointB.isZero()) { -// result = aPointA; - } else if ( (aPointA.x().compare(aPointB.x()) == 0) && ((aPointA.y().compare(aPointB.y()) != 0) || aPointB.x().isZero())) { -// result = new Clipperz.Crypto.ECC.BinaryField.Point({x:Clipperz.Crypto.ECC.BinaryField.Value.O, y:Clipperz.Crypto.ECC.BinaryField.Value.O}); - aPointA._x = Clipperz.Crypto.ECC.BinaryField.Value.O; - aPointA._y = Clipperz.Crypto.ECC.BinaryField.Value.O; - } else { - var f2m; - var x, y; - var lambda; - var aX, aY, bX, bY; - - aX = aPointA.x()._value; - aY = aPointA.y()._value; - bX = aPointB.x()._value; - bY = aPointB.y()._value; - - f2m = this.finiteField(); - - if (aPointA.x().compare(aPointB.x()) != 0) { -//console.log(" a.x != b.x"); - lambda = f2m._fastMultiply( - f2m._add(aY, bY), - f2m._inverse(f2m._add(aX, bX)) - ); - x = f2m._add(this.a()._value, f2m._square(lambda)); - f2m._overwriteAdd(x, lambda); - f2m._overwriteAdd(x, aX); - f2m._overwriteAdd(x, bX); - } else { -//console.log(" a.x == b.x"); - lambda = f2m._add(bX, f2m._fastMultiply(bY, f2m._inverse(bX))); -//console.log(" lambda: " + lambda.asString(16)); - x = f2m._add(this.a()._value, f2m._square(lambda)); -//console.log(" x (step 1): " + x.asString(16)); - f2m._overwriteAdd(x, lambda); -//console.log(" x (step 2): " + x.asString(16)); - } - - y = f2m._fastMultiply(f2m._add(bX, x), lambda); -//console.log(" y (step 1): " + y.asString(16)); - f2m._overwriteAdd(y, x); -//console.log(" y (step 2): " + y.asString(16)); - f2m._overwriteAdd(y, bY); -//console.log(" y (step 3): " + y.asString(16)); - -// result = new Clipperz.Crypto.ECC.BinaryField.Point({x:new Clipperz.Crypto.ECC.BinaryField.Value(x), y:new Clipperz.Crypto.ECC.BinaryField.Value(y)}) - aPointA._x._value = x; - aPointA._y._value = y; - - } -//console.log("<<< ECC.BinaryField.Curve.add"); - - return result; - }, - - //----------------------------------------------------------------------------- - - 'multiply': function(aValue, aPoint) { - var result; - -//console.profile(); - result = new Clipperz.Crypto.ECC.BinaryField.Point({x:Clipperz.Crypto.ECC.BinaryField.Value.O, y:Clipperz.Crypto.ECC.BinaryField.Value.O}); - - if (aValue.isZero() == false) { - var k, Q; - var i; - var countIndex; countIndex = 0; - - if (aValue.compare(Clipperz.Crypto.ECC.BinaryField.Value.O) > 0) { - k = aValue; - Q = aPoint; - } else { -MochiKit.Logging.logError("The Clipperz.Crypto.ECC.BinaryFields.Value does not work with negative values!!!!"); - k = aValue.negate(); - Q = this.negate(aPoint); - } - -//console.log("k: " + k.toString(16)); -//console.log("k.bitSize: " + k.bitSize()); - for (i=k.bitSize()-1; i>=0; i--) { - result = this.add(result, result); -// this.overwriteAdd(result, result); - if (k.isBitSet(i)) { - result = this.add(result, Q); -// this.overwriteAdd(result, Q); - } - -// if (countIndex==100) {console.log("multiply.break"); break;} else countIndex++; - } - } -//console.profileEnd(); - - return result; - }, - - //----------------------------------------------------------------------------- - - 'deferredMultiply': function(aValue, aPoint) { - var deferredResult; - var result; - -MochiKit.Logging.logDebug(">>> deferredMultiply - value: " + aValue + ", point: " + aPoint); -//console.profile("ECC.Curve.multiply"); - deferredResult = new MochiKit.Async.Deferred(); -//deferredResult.addCallback(function(res) {console.profile("ECC.Curve.deferredMultiply"); return res;} ); -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 1: " + res); return res;}); - - result = new Clipperz.Crypto.ECC.BinaryField.Point({x:Clipperz.Crypto.ECC.BinaryField.Value.O, y:Clipperz.Crypto.ECC.BinaryField.Value.O}); -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 2: " + res); return res;}); - - if (aValue.isZero() == false) { - var k, Q; - var i; - var countIndex; countIndex = 0; - - if (aValue.compare(Clipperz.Crypto.ECC.BinaryField.Value.O) > 0) { - k = aValue; - Q = aPoint; - } else { -MochiKit.Logging.logError("The Clipperz.Crypto.ECC.BinaryFields.Value does not work with negative values!!!!"); - k = aValue.negate(); - Q = this.negate(aPoint); - } - -//console.log("k: " + k.toString(16)); -//console.log("k.bitSize: " + k.bitSize()); - -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 3: " + res); return res;}); - for (i=k.bitSize()-1; i>=0; i--) { -//MochiKit.Logging.logDebug("====> " + i); -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 4 > i = " + i + ": " + res); return res;}); - deferredResult.addMethod(this, "addTwice"); -//# result = this.add(result, result); -// this.overwriteAdd(result, result); - if (k.isBitSet(i)) { - deferredResult.addMethod(this, "add", Q); -//# result = this.add(result, Q); -// this.overwriteAdd(result, Q); - } - if (i%20 == 0) {deferredResult.addCallback(MochiKit.Async.wait, 0.1);} - -// if (countIndex==100) {console.log("multiply.break"); break;} else countIndex++; -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 4 < i = " + i + ": " + res); return res;}); - } -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 4: " + res); return res;}); - } -//#console.profileEnd(); -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 5: " + res); return res;}); -//deferredResult.addBoth(function(res) {console.profileEnd(); return res;}); -//deferredResult.addBoth(function(res) {MochiKit.Logging.logDebug("# 6: " + res); return res;}); - deferredResult.callback(result); - -//# return result; - return deferredResult; - }, - - //----------------------------------------------------------------------------- - __syntaxFix__: "syntax fix" -}); - - -//############################################################################# - -Clipperz.Crypto.ECC.StandardCurves = {}; - -MochiKit.Base.update(Clipperz.Crypto.ECC.StandardCurves, { -/* - '_K571': null, - 'K571': function() { - if (Clipperz.Crypto.ECC.StandardCurves._K571 == null) { - Clipperz.Crypto.ECC.StandardCurves._K571 = new Clipperz.Crypto.ECC.BinaryField.Curve({ - modulus: new Clipperz.Crypto.ECC.BinaryField.Value('08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000425', 16), - a: new Clipperz.Crypto.ECC.BinaryField.Value('0', 16), - b: new Clipperz.Crypto.ECC.BinaryField.Value('1', 16), - G: new Clipperz.Crypto.ECC.BinaryField.Point({ - x: new Clipperz.Crypto.ECC.BinaryField.Value('026eb7a8 59923fbc 82189631 f8103fe4 ac9ca297 0012d5d4 60248048 01841ca4 43709584 93b205e6 47da304d b4ceb08c bbd1ba39 494776fb 988b4717 4dca88c7 e2945283 a01c8972', 16), - y: new Clipperz.Crypto.ECC.BinaryField.Value('0349dc80 7f4fbf37 4f4aeade 3bca9531 4dd58cec 9f307a54 ffc61efc 006d8a2c 9d4979c0 ac44aea7 4fbebbb9 f772aedc b620b01a 7ba7af1b 320430c8 591984f6 01cd4c14 3ef1c7a3', 16) - }), - r: new Clipperz.Crypto.ECC.BinaryField.Value('02000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 131850e1 f19a63e4 b391a8db 917f4138 b630d84b e5d63938 1e91deb4 5cfe778f 637c1001', 16), - h: new Clipperz.Crypto.ECC.BinaryField.Value('4', 16) - }); - } - - return Clipperz.Crypto.ECC.StandardCurves._K571; - }, - - - - '_K283': null, - 'K283': function() { // f(z) = z^283 + z^12 + z^7 + z^5 + 1 - if (Clipperz.Crypto.ECC.StandardCurves._K283 == null) { - Clipperz.Crypto.ECC.StandardCurves._K283 = new Clipperz.Crypto.ECC.BinaryField.Curve({ - modulus: new Clipperz.Crypto.ECC.BinaryField.Value('08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000010a1', 16), - a: new Clipperz.Crypto.ECC.BinaryField.Value('0', 16), - b: new Clipperz.Crypto.ECC.BinaryField.Value('1', 16), - G: new Clipperz.Crypto.ECC.BinaryField.Point({ - x: new Clipperz.Crypto.ECC.BinaryField.Value('0503213f 78ca4488 3f1a3b81 62f188e5 53cd265f 23c1567a 16876913 b0c2ac24 58492836', 16), - y: new Clipperz.Crypto.ECC.BinaryField.Value('01ccda38 0f1c9e31 8d90f95d 07e5426f e87e45c0 e8184698 e4596236 4e341161 77dd2259', 16) - }), - r: new Clipperz.Crypto.ECC.BinaryField.Value('01ffffff ffffffff ffffffff ffffffff ffffe9ae 2ed07577 265dff7f 94451e06 1e163c61', 16), - h: new Clipperz.Crypto.ECC.BinaryField.Value('4', 16) - }); - } - - return Clipperz.Crypto.ECC.StandardCurves._K283; - }, -*/ - //----------------------------------------------------------------------------- - - '_B571': null, - 'B571': function() { // f(z) = z^571 + z^10 + z^5 + z^2 + 1 - if (Clipperz.Crypto.ECC.StandardCurves._B571 == null) { - Clipperz.Crypto.ECC.StandardCurves._B571 = new Clipperz.Crypto.ECC.BinaryField.Curve({ - modulus: new Clipperz.Crypto.ECC.BinaryField.Value('80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000425', 16), - a: new Clipperz.Crypto.ECC.BinaryField.Value('1', 16), - b: new Clipperz.Crypto.ECC.BinaryField.Value('02f40e7e2221f295de297117b7f3d62f5c6a97ffcb8ceff1cd6ba8ce4a9a18ad84ffabbd8efa59332be7ad6756a66e294afd185a78ff12aa520e4de739baca0c7ffeff7f2955727a', 16), - G: new Clipperz.Crypto.ECC.BinaryField.Point({ - x: new Clipperz.Crypto.ECC.BinaryField.Value('0303001d 34b85629 6c16c0d4 0d3cd775 0a93d1d2 955fa80a a5f40fc8 db7b2abd bde53950 f4c0d293 cdd711a3 5b67fb14 99ae6003 8614f139 4abfa3b4 c850d927 e1e7769c 8eec2d19', 16), - y: new Clipperz.Crypto.ECC.BinaryField.Value('037bf273 42da639b 6dccfffe b73d69d7 8c6c27a6 009cbbca 1980f853 3921e8a6 84423e43 bab08a57 6291af8f 461bb2a8 b3531d2f 0485c19b 16e2f151 6e23dd3c 1a4827af 1b8ac15b', 16) - }), - r: new Clipperz.Crypto.ECC.BinaryField.Value('03ffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff e661ce18 ff559873 08059b18 6823851e c7dd9ca1 161de93d 5174d66e 8382e9bb 2fe84e47', 16), - h: new Clipperz.Crypto.ECC.BinaryField.Value('2', 16) - -// S: new Clipperz.Crypto.ECC.BinaryField.Value('2aa058f73a0e33ab486b0f610410c53a7f132310', 10), -// n: new Clipperz.Crypto.ECC.BinaryField.Value('03ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe661ce18ff55987308059b186823851ec7dd9ca1161de93d5174d66e8382e9bb2fe84e47', 16) - }); - - //----------------------------------------------------------------------------- - // - // Guide to Elliptic Curve Cryptography - // Darrel Hankerson, Alfred Menezes, Scott Vanstone - // - Pag: 56, Alorithm 2.45 (with a typo!!!) - // - //----------------------------------------------------------------------------- - // - // http://www.milw0rm.com/papers/136 - // - // ------------------------------------------------------------------------- - // Polynomial Reduction Algorithm Modulo f571 - // ------------------------------------------------------------------------- - // - // Input: Polynomial p(x) of degree 1140 or less, stored as - // an array of 2T machinewords. - // Output: p(x) mod f571(x) - // - // FOR i = T-1, ..., 0 DO - // SET X := P[i+T] - // P[i] := P[i] ^ (X<<5) ^ (X<<7) ^ (X<<10) ^ (X<<15) - // P[i+1] := P[i+1] ^ (X>>17) ^ (X>>22) ^ (X>>25) ^ (X>>27) - // - // SET X := P[T-1] >> 27 - // P[0] := P[0] ^ X ^ (X<<2) ^ (X<<5) ^ (X<<10) - // P[T-1] := P[T-1] & 0x07ffffff - // - // RETURN P[T-1],...,P[0] - // - // ------------------------------------------------------------------------- - // - Clipperz.Crypto.ECC.StandardCurves._B571.finiteField().slowModule = Clipperz.Crypto.ECC.StandardCurves._B571.finiteField().module; - Clipperz.Crypto.ECC.StandardCurves._B571.finiteField().module = function(aValue) { - var result; - - if (aValue.bitSize() > 1140) { - MochiKit.Logging.logWarning("ECC.StandarCurves.B571.finiteField().module: falling back to default implementation"); - result = Clipperz.Crypto.ECC.StandardCurves._B571.finiteField().slowModule(aValue); - } else { - var C, T; - var i; - -//console.log(">>> binaryField.finiteField.(improved)module"); -// C = aValue.value().slice(0); - C = aValue._value.slice(0); - for (i=35; i>=18; i--) { - T = C[i]; - C[i-18] = (((C[i-18] ^ (T<<5) ^ (T<<7) ^ (T<<10) ^ (T<<15)) & 0xffffffff) >>> 0); - C[i-17] = ((C[i-17] ^ (T>>>27) ^ (T>>>25) ^ (T>>>22) ^ (T>>>17)) >>> 0); - } - T = (C[17] >>> 27); - C[0] = ((C[0] ^ T ^ ((T<<2) ^ (T<<5) ^ (T<<10)) & 0xffffffff) >>> 0); - C[17] = (C[17] & 0x07ffffff); - - for(i=18; i<=35; i++) { - C[i] = 0; - } - - result = new Clipperz.Crypto.ECC.BinaryField.Value(C); -//console.log("<<< binaryField.finiteField.(improved)module"); - } - - return result; - }; - } - - return Clipperz.Crypto.ECC.StandardCurves._B571; - }, - - //----------------------------------------------------------------------------- - - '_B283': null, - 'B283': function() { // f(z) = z^283 + z^12 + z^7 + z^5 + 1 - if (Clipperz.Crypto.ECC.StandardCurves._B283 == null) { - Clipperz.Crypto.ECC.StandardCurves._B283 = new Clipperz.Crypto.ECC.BinaryField.Curve({ -// modulus: new Clipperz.Crypto.ECC.BinaryField.Value('10000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000010a1', 16), - modulus: new Clipperz.Crypto.ECC.BinaryField.Value('08000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000010a1', 16), - a: new Clipperz.Crypto.ECC.BinaryField.Value('1', 16), - b: new Clipperz.Crypto.ECC.BinaryField.Value('027b680a c8b8596d a5a4af8a 19a0303f ca97fd76 45309fa2 a581485a f6263e31 3b79a2f5', 16), - G: new Clipperz.Crypto.ECC.BinaryField.Point({ - x: new Clipperz.Crypto.ECC.BinaryField.Value('05f93925 8db7dd90 e1934f8c 70b0dfec 2eed25b8 557eac9c 80e2e198 f8cdbecd 86b12053', 16), - y: new Clipperz.Crypto.ECC.BinaryField.Value('03676854 fe24141c b98fe6d4 b20d02b4 516ff702 350eddb0 826779c8 13f0df45 be8112f4', 16) - }), - r: new Clipperz.Crypto.ECC.BinaryField.Value('03ffffff ffffffff ffffffff ffffffff ffffef90 399660fc 938a9016 5b042a7c efadb307', 16), - h: new Clipperz.Crypto.ECC.BinaryField.Value('2', 16) - -// S: new Clipperz.Crypto.ECC.BinaryField.Value('2aa058f73a0e33ab486b0f610410c53a7f132310', 10), -// n: new Clipperz.Crypto.ECC.BinaryField.Value('03ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe661ce18ff55987308059b186823851ec7dd9ca1161de93d5174d66e8382e9bb2fe84e47', 16) - }); - - //----------------------------------------------------------------------------- - // - // Guide to Elliptic Curve Cryptography - // Darrel Hankerson, Alfred Menezes, Scott Vanstone - // - Pag: 56, Alorithm 2.43 - // - //----------------------------------------------------------------------------- - Clipperz.Crypto.ECC.StandardCurves._B283.finiteField().slowModule = Clipperz.Crypto.ECC.StandardCurves._B283.finiteField().module; - Clipperz.Crypto.ECC.StandardCurves._B283.finiteField().module = function(aValue) { - var result; - - if (aValue.bitSize() > 564) { - MochiKit.Logging.logWarning("ECC.StandarCurves.B283.finiteField().module: falling back to default implementation"); - result = Clipperz.Crypto.ECC.StandardCurves._B283.finiteField().slowModule(aValue); - } else { - var C, T; - var i; - -//console.log(">>> binaryField.finiteField.(improved)module"); - C = aValue._value.slice(0); - for (i=17; i>=9; i--) { - T = C[i]; - C[i-9] = (((C[i-9] ^ (T<<5) ^ (T<<10) ^ (T<<12) ^ (T<<17)) & 0xffffffff) >>> 0); - C[i-8] = ((C[i-8] ^ (T>>>27) ^ (T>>>22) ^ (T>>>20) ^ (T>>>15)) >>> 0); - } - T = (C[8] >>> 27); - C[0] = ((C[0] ^ T ^ ((T<<5) ^ (T<<7) ^ (T<<12)) & 0xffffffff) >>> 0); - C[8] = (C[8] & 0x07ffffff); - - for(i=9; i<=17; i++) { - C[i] = 0; - } - - result = new Clipperz.Crypto.ECC.BinaryField.Value(C); -//console.log("<<< binaryField.finiteField.(improved)module"); - } - - return result; - }; - } - - return Clipperz.Crypto.ECC.StandardCurves._B283; - }, - - //----------------------------------------------------------------------------- - __syntaxFix__: "syntax fix" -}); - -//############################################################################# - |