Introduction Have you ever wondered how authentication apps like RSA Authenticator generate One-Time Passwords (OTPs) without requiring an internet connection? This fascinating technology is made possible through Time-Based One-Time Passwords (TOTP). In this article, we will explore the mechanics of TOTP, its security features, and why it doesn't rely on the internet at the client-side for generating OTPs. Understanding TOPT 1. TOTP in a Nutshell TOPT, or Time-Based One-Time Password, is a security feature designed to enhance the authentication process. It generates OTPs that are only valid for a short period, typically 30 seconds. TOPT uses a secret key, often shared between the server and the user's device, to generate these OTPs. The central idea is to provide a second factor of authentication, beyond just a static password, to strengthen security. 2. The RSA Authenticator App One popular example of a TOPT implementation is the RSA Authenticator app. This app is commonly use...
Welcome to the tech world! 🚀 As you start your journey into software development, it's crucial to understand how important security is. The OWASP Top 10 is a list of the most critical security risks for applications. Let's break it down in a simple, beginner-friendly way with real-world examples and tips! 1. Broken Access Control What's happening? Users can access data or functions they shouldn't be able to. Example: Imagine a website where anyone can change another person's profile information just by modifying the URL like: /edit-profile?userId=1234 . Tip: Always check on the server-side if the user is allowed to perform an action! 2. Cryptographic Failures What's happening? Sensitive information like passwords or credit card numbers isn't properly protected. Example: A site stores user passwords in plain text. If hackers get access, they immediately see the passwords! Tip: Always hash passwords using secure algorithms like bcrypt or...
What is Liquibase ? LiquiBase — available since 2006 — is an open source, freely available tool for migrating from one database version to another, It is an open source database-independent library for tracking, managing and applying database changes. A handful of other open source database-migration tools are on the scene as well, including openDBcopy and dbdeploy. LiquiBase supports 10 database types, including DB2, Apache Derby, MySQL, PostgreSQL, Oracle, Microsoft® SQL Server, Sybase, and HSQL. All changes to the database are stored in XML files and identified by a combination of an "id" and "author" tag as well as the name of the file itself. A list of all applied changes is stored in each database which is consulted on all database updates to determine what new changes need to be applied. LiquiBase executes changes based on this XML file to handle different revisions of database structures and data. When you first ...
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