modularize

Author: calvinmetcalf

index.js

@@ -1,16 +1,17 @@
 var bn = require('bn.js');
+var randomBytes = require('randombytes');
 module.exports = crt;
-function blind(priv, crypto) {
-  var r = getr(priv, crypto);
+function blind(priv) {
+  var r = getr(priv);
   var blinder = r.toRed(bn.mont(priv.modulus))
   .redPow(new bn(priv.publicExponent)).fromRed();
   return {
     blinder: blinder,
     unblinder:r.invm(priv.modulus)
   };
 }
-function crt(msg, priv, crypto) {
-  var blinds = blind(priv, crypto);
+function crt(msg, priv) {
+  var blinds = blind(priv);
   var len = priv.modulus.byteLength();
   var mod = bn.mont(priv.modulus);
   var blinded = new bn(msg).mul(blinds.blinder).mod(priv.modulus);
@@ -35,11 +36,11 @@ function crt(msg, priv, crypto) {
   return out;
 }
 crt.getr = getr;
-function getr(priv, crypto) {
+function getr(priv) {
   var len = priv.modulus.byteLength();
-  var r = new bn(crypto.randomBytes(len));
+  var r = new bn(randomBytes(len));
   while (r.cmp(priv.modulus) >=  0 || !r.mod(priv.prime1) || !r.mod(priv.prime2)) {
-    r = new bn(crypto.randomBytes(len));
+    r = new bn(randomBytes(len));
   }
   return r;
 }

package.json

@@ -9,7 +9,8 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
-    "bn.js": "^1.0.0"
+    "bn.js": "^1.0.0",
+    "randombytes": "^2.0.1"
   },
   "repository": {
     "type": "git",
@@ -18,6 +19,6 @@
   "devDependencies": {
     "tap-spec": "^2.1.2",
     "tape": "^3.0.3",
-    "parse-asn1": "^1.2.0"
+    "parse-asn1": "^3.0.0"
   }
 }