MyTechExp

How Your Browser Secretly Shares a Key (Even on Public Wi-Fi!) Ever see that little padlock 🔒 in your browser and wonder how it  actually  keeps your stuff safe? How can your browser and a website agree on a secret code to scramble your password... when any hacker could be listening in? It sounds impossible, right? It's not magic, but it's a super clever mathematical trick called the  Diffie-Hellman key exchange . At its core, it's a way for two parties (like your browser and a server) to create a  shared secret key  over the public internet, without  ever sending the key itself. This brand-new shared secret is then used to create  another  key, called a  symmetric key  (you might hear tech folks call it 'AES'). This  second  key is a super-fast, heavy-duty encryption key that does all the hard work of scrambling and unscrambling your data for the rest of your visit. The easiest way to get this is with the famous "mixing paint...

 Building a Multi-Agent Holiday Booking System with the A2A Protocol (An MVP Approach) The world of AI is rapidly moving towards "agentic systems" — autonomous AI agents that can perform complex, multi-step tasks by collaborating with each other. The challenge, however, has always been standardization: how do you get agents built on different frameworks, by different teams, to communicate effectively? This is the problem the  Agent2Agent (A2A) protocol , an open standard, aims to solve. It provides a common language for agents to discover, communicate, and collaborate securely. In this blog post, we'll walk through a Minimum Viable Product (MVP) approach to a real-world scenario: building a holiday booking system using the A2A protocol in python. Design Architecture (MVP) The Problem: A Siloed Booking Experience Imagine a traditional holiday booking website. It might have separate sections for flights, hotels, and cabs. Each of these services is handled by a different int...