#3 crypto

I have replaced using native "crypto" on using cross platform "crypto-js". I have added unit tests

package.json

@@ -7,7 +7,16 @@
   "module": "build/module/index.js",
   "repository": "https://github.com/vmreal/digest-auth",
   "license": "MIT",
-  "keywords": ["digest auth", "digest", "basic", "typescript", "node", "axios", "expressjs", "nestjs"],
+  "keywords": [
+    "digest auth",
+    "digest",
+    "basic",
+    "typescript",
+    "node",
+    "axios",
+    "expressjs",
+    "nestjs"
+  ],
   "scripts": {
     "describe": "npm-scripts-info",
     "build": "run-s clean && run-p build:*",
@@ -52,9 +61,11 @@
   "dependencies": {
     "class-transformer": "^0.2.0",
     "class-validator": "^0.9.1",
+    "crypto-js": "^3.1.9-1",
     "sha.js": "^2.4.11"
   },
   "devDependencies": {
+    "@types/crypto-js": "^3.1.43",
     "ava": "1.0.0-beta.7",
     "codecov": "^3.1.0",
     "cz-conventional-changelog": "^2.1.0",

src/lib/encryptions/md5.spec.ts

@@ -0,0 +1,7 @@
+import test from 'ava';
+import { MD5 } from './md5';
+
+
+test('generate - return string', t => {
+  t.is(MD5.createHex('test:test'), 'c4f961b4380ee24d982fed76ef36be9f');
+});

src/lib/encryptions/md5.ts

@@ -1,10 +1,7 @@
-import * as crypto from 'crypto';
+import cryptoMD5 from 'crypto-js/md5';
 
 export class MD5 {
   public static createHex(raw: string): string {
-    return crypto
-      .createHash('md5')
-      .update(raw)
-      .digest('hex');
+    return cryptoMD5(raw).toString();
   }
 }

src/lib/encryptions/nonce.spec.ts

@@ -0,0 +1,33 @@
+import test from 'ava';
+import { Nonce } from './nonce';
+
+
+test('generate - return string', t => {
+  t.is(typeof Nonce.generate(), 'string');
+  t.is(typeof Nonce.generate(10), 'string');
+  t.is(typeof Nonce.generate(1), 'string');
+});
+
+
+test('generate - default length equal 48', t => {
+  t.is(Nonce.generate().length, 48);
+});
+
+
+test('generate - custom length equal 20', t => {
+  t.is(Nonce.generate(20).length, 20);
+});
+
+test('generate - custom length equal 2', t => {
+  t.is(Nonce.generate(2).length, 2);
+});
+
+
+test('generate - custom length equal 1', t => {
+  t.is(Nonce.generate(1).length, 1);
+});
+
+test('generate - custom length lees then 1', t => {
+  t.is(Nonce.generate(0).length, 0);
+  t.is(Nonce.generate(-1).length, 0);
+});

src/lib/encryptions/nonce.ts

@@ -1,4 +1,4 @@
-import * as crypto from 'crypto';
+import {lib, enc} from 'crypto-js';
 
 export class Nonce {
 
@@ -10,6 +10,7 @@ export class Nonce {
       ? 1
       : length / 2;
 
-    return crypto.randomBytes(byteSize).toString('hex').substring(0, length);
+    return enc.Hex.stringify(lib.WordArray.random(byteSize)).substring(0, length);
+
   }
 }