Security

Research Disclaimer This tutorial is based on: W3C WebAuthn Level 3 Specification (October 2024) FIDO2/CTAP2 specification (FIDO Alliance, 2023) @simplewebauthn/server v9.0+ (Node.js library) py_webauthn v2.0+ (Python library) Web Crypto API (W3C standard) NIST SP 800-63B Digital Identity Guidelines All code examples follow documented WebAuthn best practices and are production-ready. Security analysis is based on FIDO Alliance and W3C standards. Examples tested on Chrome 119+, Safari 17+, Firefox 120+, Edge 119+. ...

Scaling Mobile App Development with React Native: A Comprehensive Guide Note: This guide is based on the official React Native documentation (v0.73), Expo SDK 50 documentation, and documented security best practices from OWASP Mobile Security Project. All code examples use official React Native APIs and follow the React Native community guidelines. React Native has evolved from a Facebook experiment into the production framework powering apps like Instagram, Facebook, Discord, and Microsoft Teams. With code sharing between iOS and Android reaching 95%+ in well-architected apps, React Native offers compelling economics for mobile development while maintaining near-native performance. ...

Enhancing Secure Boot with Unified Kernel Images (UKIs) ===================================================== Introduction Secure boot processes are crucial in modern computing to prevent unauthorized firmware, operating systems, or UEFI drivers from running on a computer. One of the recent developments in this area is the use of Unified Kernel Images (UKIs) to enhance boot security. In this article, we will explore the concept of UKIs and provide a step-by-step guide on how to implement them to improve secure boot processes. ...

Table of Contents Introduction Prerequisites Understanding SHA-1 and its Limitations Introduction to SHA-256 Implementing SHA-256 in Practice Migrating from SHA-1 to SHA-256 Conclusion Introduction Cryptographic hash functions play a vital role in ensuring data integrity and security in various applications. In this guide, we’ll explore the evolution of cryptographic hash functions, discuss the limitations of SHA-1, and provide a comprehensive guide to implementing and using SHA-256. Prerequisites To follow this guide, you should have a basic understanding of cryptography and hash functions. Familiarity with programming languages such as Python, C++, or Java is also recommended. ...

Managing firewalls, VLANs, and access control lists might be second nature in a traditional IT setting. But when it comes to AWS, the terminology and tools can seem foreign. This beginner’s guide aims to bridge that gap, translating AWS security concepts into the world of on-premise security you already know. Why AWS Security Matters AWS is a leading cloud provider, and its popularity, unfortunately, makes it an attractive target for cyberattacks. It’s essential to grasp the principles of AWS security to protect your valuable data and applications. Remember, AWS operates on a Shared Responsibility Model – they secure the cloud itself, while you’re responsible for securing your workloads within it. ...