refactor: rename constants to calculate and clean up hash usage

1 files changed, 0 insertions, 101 deletions

diff --git a/src/srp_constants.js b/src/srp_constants.js
deleted file mode 100644
index 3d7ec85..0000000
--- a/src/srp_constants.js
+++ /dev/null
@@ -1,101 +0,0 @@
-srp.Constants = 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.calcA = function(_a) { 
-    a = new BigInteger(_a, 16);
-    return g.modPow(a, N).toString(16);
-  };
-
-  // Calculates the X value
-  // x = H(s, H(I:p))
-  this.calcX = function(login, password, salt) {
-    var salted = salt + SHA256(login + ":" + password)
-    return SHA256(hex2a(salted));
-  };
-
-  this.calcV = this.calcA;
-
-  // u = H(A,B)
-  this.calcU = function(A, B) {
-    return SHA256(hex2a(A + B)); 
-  };
-
-  //S = (B - kg^x) ^ (a + ux)
-  this.calcS = function(_a, _A, _B, _x) {
-    var a = new BigInteger(_a, 16);
-    var x = new BigInteger(_x, 16);
-    var u = new BigInteger(this.calcU(_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 B.subtract(kgx).modPow(aux, N).toString(16); 
-  }
-
-  this.calcK = function(_S) {
-    return SHA256(hex2a(_S));
-  }
-
-  this.nXorG = function() {
-    var hashN = SHA256(hex2a(Nstr));
-    var hashG = SHA256(hex2a(g.toString(16)));
-    return hexXor(hashN, hashG);
-  };
-
-  this.hash = function(hexString) {
-    return removeLeading0(SHA256(hex2a(hexString)));
-  };
-
-  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 a.toString(16);
-  };
-  
-  // some 16 byte random number
-  this.randomSalt = function() {
-    return new BigInteger(64, rng).toString(16);
-  }
-
-  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 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;
-  }
-};