[Pkg-javascript-commits] [node-miller-rabin] 09/37: lib: extended API

[Bastien Roucariès]

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rouca pushed a commit to branch master
in repository node-miller-rabin.

commit d4f159ef76d2ebf175ae4bc3f65ed121611f096a
Author: Fedor Indutny <fedor at indutny.com>
Date:   Fri Nov 7 17:54:50 2014 +0300

    lib: extended API
---
 lib/mr.js        | 19 ++++++++++++++-----
 test/api-test.js |  2 +-
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/lib/mr.js b/lib/mr.js
index d3f51d2..117943b 100644
--- a/lib/mr.js
+++ b/lib/mr.js
@@ -1,7 +1,16 @@
 var bn = require('bn.js');
 var brorand = require('brorand');
 
-function rand(n) {
+function MillerRabin(rand) {
+  this.rand = rand || new brorand.Rand();
+}
+module.exports = MillerRabin;
+
+MillerRabin.create = function create(rand) {
+  return new MillerRabin(rand);
+};
+
+MillerRabin.prototype._rand = function _rand(n) {
   var len = n.bitLength();
   var buf = brorand(Math.ceil(len / 8));
 
@@ -16,7 +25,7 @@ function rand(n) {
   return new bn(buf);
 }
 
-exports.test = function test(n, k, cb) {
+MillerRabin.prototype.test = function test(n, k, cb) {
   var len = n.bitLength();
   var red = bn.mont(n);
   var rone = new bn(1).toRed(red);
@@ -34,7 +43,7 @@ exports.test = function test(n, k, cb) {
 
   var prime = true;
   for (; k > 0; k--) {
-    var a = rand(n2);
+    var a = this._rand(n2);
     if (cb)
       cb(a);
 
@@ -58,7 +67,7 @@ exports.test = function test(n, k, cb) {
   return prime;
 };
 
-exports.getDivisor = function getDivisor(n, k) {
+MillerRabin.prototype.getDivisor = function getDivisor(n, k) {
   var len = n.bitLength();
   var red = bn.mont(n);
   var rone = new bn(1).toRed(red);
@@ -76,7 +85,7 @@ exports.getDivisor = function getDivisor(n, k) {
 
   var prime = true;
   for (; k > 0; k--) {
-    var a = rand(n2);
+    var a = this._rand(n2);
 
     var g = n.gcd(a);
     if (g.cmpn(1) !== 0)
diff --git a/test/api-test.js b/test/api-test.js
index de9dba7..dee094d 100644
--- a/test/api-test.js
+++ b/test/api-test.js
@@ -1,5 +1,5 @@
 var assert = require('assert');
-var mr = require('../');
+var mr = require('../').create();
 var bn = require('bn.js');
 
 describe('Miller-Rabin', function() {

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