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-rw-r--r--app/assets/javascripts/srp/src/srp_calculate.js141
1 files changed, 0 insertions, 141 deletions
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;
- }
-};