feat: Adding token creator and a parser

package.json

 {
   "name": "security-ndjs-lib",
   "version": "1.0.0",
-  "description": "",
+  "description": "Library to manage tokens using js",
   "main": "index.js",
   "scripts": {
     "test": "jest"

src/token.js

@@ -4,7 +4,7 @@ const { getDefaultPath } = require('./util/osutils')
 require('dotenv').config({path: getDefaultPath('global') + "/.env"});
 
 const apiKey = process.env.API_KEY;
-
+const tokenAlgorithm = process.env.TOKEN_ALGORITHM
 createJWT = (id, subject, ...time) => {
     return createToken(id, "oliverpqh@gmail.com", subject, time);
 }
@@ -24,7 +24,7 @@ createToken = (id, issuer, subject, ...time) => {
 
     // Set expiration if provided
     const options = {
-        algorithm: 'HS512'
+        algorithm: tokenAlgorithm
     };
 
     if (ttlMillis >= 0) {
@@ -42,7 +42,7 @@ parseJWT = (token, ...id)  => {
     try {
         // Verify and decode the token using token and private key
         const decoded = jwt.verify(token, Buffer.from(apiKey, 'base64'), {
-            algorithms: ['HS512'] // Ensure it matches the algorithm used when creating the token
+            algorithms: [tokenAlgorithm] // Ensure it matches the algorithm used when creating the token
         });
         /* // if one day we want to validate the id
         if(id[0]){