| if (typeof window.localStorage == 'undefined' || typeof window.sessionStorage == 'undefined') (function () { | |
| var Storage = function (type) { | |
| function createCookie(name, value, days) { | |
| var date, expires; | |
| if (days) { | |
| date = new Date(); | |
| date.setTime(date.getTime()+(days*24*60*60*1000)); | |
| expires = "; expires="+date.toGMTString(); |
| // Check Iranian National Code Validity - Clojure, C#, F#, Ruby, JavaScript, Dart, Python, Scala, Java 8, PHP, C, Go, Swift, Kotlin, Groovy, Rust, Haskell, Erlang, Elixir, Power Query M Language, VBA, R, Lua, Fortran, Pascal/Delphi, Excel, Stored Procedure / MySQL | |
| // بررسی صحت کد ملی ایران - کلوژر، سی‌شارپ، اف‌شارپ، روبی، جاوااسکریپت، دارت، پایتون، اسکالا، جاوا ۸، پی‌اچ‌پی، سی، گو، سوئیفت، کاتلین، گرووی، راست، هسکل، ارلنگ، الکسیر، پاورکوئری ام، وی‌بی ای، آر، لوآ، فرترن، پاسکال/دلفی، اکسل، مای‌اس‌کیوال | |
| // در نسخه‌های قبل یکسان بودن اعداد نا معتبر تشخیص داده می‌شد ولی | |
| // اعداد یکسان نامعتبر نیست https://web.archive.org/web/20170706081048/http://www.fardanews.com/fa/news/127747/رندترین-شماره-ملی-بلای-جان-صاحبش-شد | |
| // بعضی از پیاده‌سازی‌ها سریع نیستند، می‌توانید نسخهٔ خود را بر پایهٔ | |
| // نسخهٔ سی یا گو ایجاد کنید که بهترین سرعت را داشته باشد | |
| /** |
Below are many examples of function hoisting behavior in JavaScript. Ones marked as works successfuly print 'hi!' without errors.
To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js
(I may be using incorrect terms below, please forgive me)
| <!-- MIT License --> | |
| <html> | |
| <head> | |
| <script> | |
| function generateKey(alg, scope) { | |
| return new Promise(function(resolve) { | |
| var genkey = crypto.subtle.generateKey(alg, true, scope) | |
| genkey.then(function (pair) { | |
| resolve(pair) | |
| }) |
| /* | |
| Assuming that you have proper MySQL JDBC driver: | |
| How to use this class? | |
| 1. Create new object | |
| DBHelper db = new DBHelper(); | |
| 2. Open connection | |
| db.open(); | |
| 3. Call corresponding method | |
| db.test(); |
Picking the right architecture = Picking the right battles + Managing trade-offs
| -- Get Max ID from table | |
| SELECT MAX(id) FROM table; | |
| -- Get Next ID from table | |
| SELECT nextval('table_id_seq'); | |
| -- Set Next ID Value to MAX ID | |
| SELECT setval('table_id_seq', (SELECT MAX(id) FROM table)); |
This is a working example on how to store CryptoKeys locally in your browser. We are able to save the objects, without serializing them. This means we can keep them not exportable (which might be more secure?? not sure what attack vectors this prevents).
To try out this example, first make sure you are in a browser that has support for async...await and indexedDB (latest chrome canary with chrome://flags "Enable Experimental Javascript" works). Load some page and copy and paste this code into the console. Then call encryptDataSaveKey(). This will create a private/public key pair and encrypted some random data with the private key. Then save both of them. Now reload the page, copy in the code, and run loadKeyDecryptData(). It will load the keys and encrypted data and decrypt it. You should see the same data logged both times.
| 'use strict'; | |
| const crypto = require('crypto'); | |
| const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters) | |
| const IV_LENGTH = 16; // For AES, this is always 16 | |
| function encrypt(text) { | |
| let iv = crypto.randomBytes(IV_LENGTH); | |
| let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv); |
