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|
/*
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;
if (aPointA.isZero()) {
result = aPointB;
} 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});
} 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) {
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 {
lambda = f2m._add(bX, f2m._fastMultiply(bY, f2m._inverse(bX)));
x = f2m._add(this.a()._value, f2m._square(lambda));
f2m._overwriteAdd(x, lambda);
}
y = f2m._fastMultiply(f2m._add(bX, x), lambda);
f2m._overwriteAdd(y, x);
f2m._overwriteAdd(y, bY);
result = new Clipperz.Crypto.ECC.BinaryField.Point({x:new Clipperz.Crypto.ECC.BinaryField.Value(x), y:new Clipperz.Crypto.ECC.BinaryField.Value(y)})
}
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) {
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 {
lambda = f2m._add(bX, f2m._fastMultiply(bY, f2m._inverse(bX)));
x = f2m._add(this.a()._value, f2m._square(lambda));
f2m._overwriteAdd(x, lambda);
}
y = f2m._fastMultiply(f2m._add(bX, x), lambda);
f2m._overwriteAdd(y, x);
f2m._overwriteAdd(y, bY);
// 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;
}
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 {
Clipperz.logError("The Clipperz.Crypto.ECC.BinaryFields.Value does not work with negative values!!!!");
k = aValue.negate();
Q = this.negate(aPoint);
}
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) {Clipperz.log("multiply.break"); break;} else countIndex++;
}
}
//console.profileEnd();
return result;
},
//-----------------------------------------------------------------------------
'deferredMultiply': function(aValue, aPoint) {
var deferredResult;
var result;
Clipperz.log(">>> 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) {Clipperz.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) {Clipperz.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 {
Clipperz.logError("The Clipperz.Crypto.ECC.BinaryFields.Value does not work with negative values!!!!");
k = aValue.negate();
Q = this.negate(aPoint);
}
for (i=k.bitSize()-1; i>=0; i--) {
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);}
}
}
//#console.profileEnd();
//deferredResult.addBoth(function(res) {console.profileEnd(); 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) {
Clipperz.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;
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);
}
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) {
Clipperz.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;
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);
}
return result;
};
}
return Clipperz.Crypto.ECC.StandardCurves._B283;
},
//-----------------------------------------------------------------------------
__syntaxFix__: "syntax fix"
});
//#############################################################################
|
