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1 files changed, 10 insertions, 13 deletions
diff --git a/frontend/gamma/js/Clipperz/Crypto/BigInt.js b/frontend/gamma/js/Clipperz/Crypto/BigInt.js index 41483a3..031ed30 100644 --- a/frontend/gamma/js/Clipperz/Crypto/BigInt.js +++ b/frontend/gamma/js/Clipperz/Crypto/BigInt.js @@ -1,118 +1,116 @@ /* -Copyright 2008-2011 Clipperz Srl +Copyright 2008-2013 Clipperz Srl -This file is part of Clipperz Community Edition. -Clipperz Community Edition is an online password manager. +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 Community Edition 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 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 Community Edition 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. +* 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 Community Edition. If not, see - <http://www.gnu.org/licenses/>. + License along with Clipperz. If not, see http://www.gnu.org/licenses/. */ if (typeof(Clipperz) == 'undefined') { Clipperz = {}; } if (typeof(Clipperz.Crypto) == 'undefined') { Clipperz.Crypto = {}; } //############################################################################# // Downloaded on March 05, 2007 from http://www.leemon.com/crypto/BigInt.js //############################################################################# //////////////////////////////////////////////////////////////////////////////////////// // Big Integer Library v. 5.0 // Created 2000, last modified 2006 // Leemon Baird // www.leemon.com // // This file is public domain. You can use it for any purpose without restriction. // I do not guarantee that it is correct, so use it at your own risk. If you use // it for something interesting, I'd appreciate hearing about it. If you find // any bugs or make any improvements, I'd appreciate hearing about those too. // It would also be nice if my name and address were left in the comments. // But none of that is required. // // This code defines a bigInt library for arbitrary-precision integers. // A bigInt is an array of integers storing the value in chunks of bpe bits, // little endian (buff[0] is the least significant word). // Negative bigInts are stored two's complement. // Some functions assume their parameters have at least one leading zero element. // Functions with an underscore at the end of the name have unpredictable behavior in case of overflow, // so the caller must make sure overflow won't happen. // For each function where a parameter is modified, that same // variable must not be used as another argument too. // So, you cannot square x by doing multMod_(x,x,n). // You must use squareMod_(x,n) instead, or do y=dup(x); multMod_(x,y,n). // // These functions are designed to avoid frequent dynamic memory allocation in the inner loop. // For most functions, if it needs a BigInt as a local variable it will actually use // a global, and will only allocate to it when it's not the right size. This ensures // that when a function is called repeatedly with same-sized parameters, it only allocates // memory on the first call. // // Note that for cryptographic purposes, the calls to Math.random() must // be replaced with calls to a better pseudorandom number generator. // // In the following, "bigInt" means a bigInt with at least one leading zero element, // and "integer" means a nonnegative integer less than radix. In some cases, integer // can be negative. Negative bigInts are 2s complement. // // The following functions do not modify their inputs, but dynamically allocate memory every time they are called: // // function bigInt2str(x,base) //convert a bigInt into a string in a given base, from base 2 up to base 95 // function dup(x) //returns a copy of bigInt x // function findPrimes(n) //return array of all primes less than integer n // function int2bigInt(t,n,m) //convert integer t to a bigInt with at least n bits and m array elements // function int2bigInt(s,b,n,m) //convert string s in base b to a bigInt with at least n bits and m array elements // function trim(x,k) //return a copy of x with exactly k leading zero elements // // The following functions do not modify their inputs, so there is never a problem with the result being too big: // // function bitSize(x) //returns how many bits long the bigInt x is, not counting leading zeros // function equals(x,y) //is the bigInt x equal to the bigint y? // function equalsInt(x,y) //is bigint x equal to integer y? // function greater(x,y) //is x>y? (x and y are nonnegative bigInts) // function greaterShift(x,y,shift)//is (x <<(shift*bpe)) > y? // function isZero(x) //is the bigInt x equal to zero? // function millerRabin(x,b) //does one round of Miller-Rabin base integer b say that bigInt x is possibly prime (as opposed to definitely composite)? // function modInt(x,n) //return x mod n for bigInt x and integer n. // function negative(x) //is bigInt x negative? // // The following functions do not modify their inputs, but allocate memory and call functions with underscores // // function add(x,y) //return (x+y) for bigInts x and y. // function addInt(x,n) //return (x+n) where x is a bigInt and n is an integer. // function expand(x,n) //return a copy of x with at least n elements, adding leading zeros if needed // function inverseMod(x,n) //return (x**(-1) mod n) for bigInts x and n. If no inverse exists, it returns null // function mod(x,n) //return a new bigInt equal to (x mod n) for bigInts x and n. // function mult(x,y) //return x*y for bigInts x and y. This is faster when y<x. // function multMod(x,y,n) //return (x*y mod n) for bigInts x,y,n. For greater speed, let y<x. // function powMod(x,y,n) //return (x**y mod n) where x,y,n are bigInts and ** is exponentiation. 0**0=1. Faster for odd n. // function randTruePrime(k) //return a new, random, k-bit, true prime using Maurer's algorithm. // function sub(x,y) //return (x-y) for bigInts x and y. Negative answers will be 2s complement // // The following functions write a bigInt result to one of the parameters, but // the result is never bigger than the original, so there can't be overflow problems: // // function divInt_(x,n) //do x=floor(x/n) for bigInt x and integer n, and return the remainder // function GCD_(x,y) //set x to the greatest common divisor of bigInts x and y, (y is destroyed). // function halve_(x) //do x=floor(|x|/2)*sgn(x) for bigInt x in 2's complement // function mod_(x,n) //do x=x mod n for bigInts x and n. // function rightShift_(x,n) //right shift bigInt x by n bits. 0 <= n < bpe. // // The following functions write a bigInt result to one of the parameters. The caller is responsible for // ensuring it is large enough to hold the result. // // function addInt_(x,n) //do x=x+n where x is a bigInt and n is an integer @@ -1384,193 +1382,192 @@ function mont_(x,y,n,np) { } for (;j<kn;j++) { c+=sa[j]+ui*n[j]; sa[j-1]=c & mask; c>>=bpe; } sa[j-1]=c & mask; } if (!greater(n,sa)) sub_(sa,n); copy_(x,sa); } //############################################################################# //############################################################################# //############################################################################# //############################################################################# //############################################################################# //############################################################################# //############################################################################# //############################################################################# Clipperz.Crypto.BigInt = function (aValue, aBase) { var base; var value; if (typeof(aValue) == 'object') { this._internalValue = aValue; } else { if (typeof(aValue) == 'undefined') { value = "0"; } else { value = aValue + ""; } if (typeof(aBase) == 'undefined') { base = 10; } else { base = aBase; } this._internalValue = str2bigInt(value, base, 1, 1); } return this; } //============================================================================= MochiKit.Base.update(Clipperz.Crypto.BigInt.prototype, { 'clone': function() { return new Clipperz.Crypto.BigInt(this.internalValue()); }, //------------------------------------------------------------------------- 'internalValue': function () { return this._internalValue; }, //------------------------------------------------------------------------- 'isBigInt': true, //------------------------------------------------------------------------- 'toString': function(aBase) { return this.asString(aBase); }, //------------------------------------------------------------------------- 'asString': function (aBase, minimumLength) { var result; var base; if (typeof(aBase) == 'undefined') { base = 10; } else { base = aBase; } result = bigInt2str(this.internalValue(), base).toLowerCase(); if ((typeof(minimumLength) != 'undefined') && (result.length < minimumLength)) { var i, c; -//MochiKit.Logging.logDebug(">>> FIXING BigInt.asString length issue") c = (minimumLength - result.length); for (i=0; i<c; i++) { result = '0' + result; } } return result; }, //------------------------------------------------------------------------- 'asByteArray': function() { return new Clipperz.ByteArray("0x" + this.asString(16), 16); }, //------------------------------------------------------------------------- 'equals': function (aValue) { var result; if (aValue.isBigInt) { result = equals(this.internalValue(), aValue.internalValue()); } else if (typeof(aValue) == "number") { result = equalsInt(this.internalValue(), aValue); } else { throw Clipperz.Crypt.BigInt.exception.UnknownType; } return result; }, //------------------------------------------------------------------------- 'compare': function(aValue) { /* var result; var thisAsString; var aValueAsString; thisAsString = this.asString(10); aValueAsString = aValue.asString(10); result = MochiKit.Base.compare(thisAsString.length, aValueAsString.length); if (result == 0) { result = MochiKit.Base.compare(thisAsString, aValueAsString); } return result; */ var result; if (equals(this.internalValue(), aValue.internalValue())) { result = 0; } else if (greater(this.internalValue(), aValue.internalValue())) { result = 1; } else { result = -1; } return result; }, //------------------------------------------------------------------------- 'add': function (aValue) { var result; if (aValue.isBigInt) { result = add(this.internalValue(), aValue.internalValue()); } else { result = addInt(this.internalValue(), aValue); } return new Clipperz.Crypto.BigInt(result); }, //------------------------------------------------------------------------- 'subtract': function (aValue) { var result; var value; if (aValue.isBigInt) { value = aValue; } else { value = new Clipperz.Crypto.BigInt(aValue); } result = sub(this.internalValue(), value.internalValue()); return new Clipperz.Crypto.BigInt(result); }, //------------------------------------------------------------------------- 'multiply': function (aValue, aModule) { |