From 8370b62870a3100e126e6434a09eb518c26dfd71 Mon Sep 17 00:00:00 2001 From: Azul Date: Wed, 31 Jan 2018 10:06:15 +0100 Subject: clean up old subrepo --- app/assets/javascripts/srp/src/srp_calculate.js | 141 ------------------------ 1 file changed, 141 deletions(-) delete mode 100644 app/assets/javascripts/srp/src/srp_calculate.js (limited to 'app/assets/javascripts/srp/src/srp_calculate.js') diff --git a/app/assets/javascripts/srp/src/srp_calculate.js b/app/assets/javascripts/srp/src/srp_calculate.js deleted file mode 100644 index e32def8..0000000 --- a/app/assets/javascripts/srp/src/srp_calculate.js +++ /dev/null @@ -1,141 +0,0 @@ -srp.Calculate = function() { - - // Variables used in the SRP protocol - var Nstr = "eeaf0ab9adb38dd69c33f80afa8fc5e86072618775ff3c0b9ea2314c9c256576d674df7496ea81d3383b4813d692c6e0e0d5d8e250b98be48e495c1d6089dad15dc7d7b46154d6b6ce8ef4ad69b15d4982559b297bcf1885c529f566660e57ec68edbc3c05726cc02fd4cbf4976eaa9afd5138fe8376435b9fc61d2fc0eb06e3"; - var N = new BigInteger(Nstr, 16); - var g = new BigInteger("2"); - var k = new BigInteger("bf66c44a428916cad64aa7c679f3fd897ad4c375e9bbb4cbf2f5de241d618ef0", 16); - var rng = new SecureRandom(); - - this.A = function(_a) { - a = new BigInteger(_a, 16); - return zeroPrefix(g.modPow(a, N).toString(16)); - }; - - // Calculates the X value - // x = H(s, H(I:p)) - this.X = function(login, password, salt) { - var salted = salt + this.hash(login + ":" + password) - return this.hashHex(salted); - }; - - this.V = this.A; - - // u = H(A,B) - this.U = function(A, B) { - return this.hashHex(A + B); - }; - - //S = (B - kg^x) ^ (a + ux) - this.S = function(_a, _A, _B, _x) { - var a = new BigInteger(_a, 16); - var x = new BigInteger(_x, 16); - var u = new BigInteger(this.U(_A, _B), 16); - var B = new BigInteger(_B, 16); - - var kgx = k.multiply(g.modPow(x, N)); - var aux = a.add(u.multiply(x)); - - return zeroPrefix(B.subtract(kgx).modPow(aux, N).toString(16)); - } - - this.K = function(_S) { - return this.hashHex(_S); - } - - this.nXorG = function() { - var hashN = this.hashHex(Nstr); - var hashG = this.hashHex(g.toString(16)); - return hexXor(hashN, hashG); - }; - - this.hashHex = function(hexString) { - return SHA256(hex2a(hexString)); - }; - - this.hash = function(string) { - return SHA256(utf8Encode(string)); - }; - - this.isInvalidEphemeral = function(a) { - return (g.modPow(a, N) == 0); - }; - - this.randomEphemeral = function() { - var a = new BigInteger(32, rng); - while(this.isInvalidEphemeral(a)) - { - a = new BigInteger(32, rng); - } - return zeroPrefix(a.toString(16)); - }; - - // some 16 byte random number - this.randomSalt = function() { - var salt = new BigInteger(64, rng); - return zeroPrefix(salt.toString(16)); - } - - // expose zeroPrefix for received values. - this.zeroPrefix = zeroPrefix; - - function hex2a(hex) { - var str = ''; - if(hex.length % 2) { - hex = "0" + hex; - } - for (var i = 0; i < hex.length; i += 2) - str += String.fromCharCode(parseInt(hex.substr(i, 2), 16)); - return str; - } - - - function zeroPrefix(hex) { - if (hex.length % 2) { - return "0" + hex; - } else { - return hex; - } - } - - - function removeLeading0(hex) { - if (hex[0] == "0") { - return hex.substr(1); - } else { - return hex; - } - } - - function hexXor(a, b) { - var str = ''; - for (var i = 0; i < a.length; i += 2) { - var xor = parseInt(a.substr(i, 2), 16) ^ parseInt(b.substr(i, 2), 16) - xor = xor.toString(16); - str += (xor.length == 1) ? ("0" + xor) : xor - } - return str; - } - - function utf8Encode(string) { - string = string.replace(/\r\n/g,"\n"); - var utftext = ""; - - for (var n = 0; n < string.length; n++) { - var c = string.charCodeAt(n); - if (c < 128) { - utftext += String.fromCharCode(c); - } - else if((c > 127) && (c < 2048)) { - utftext += String.fromCharCode((c >> 6) | 192); - utftext += String.fromCharCode((c & 63) | 128); - } - else { - utftext += String.fromCharCode((c >> 12) | 224); - utftext += String.fromCharCode(((c >> 6) & 63) | 128); - utftext += String.fromCharCode((c & 63) | 128); - } - } - return utftext; - } -}; -- cgit v1.2.3