Security & Cryptography Blog
Expert guides on keeping your data secure in the modern web.
How to Generate and Store RSA Keys Safely for SSH
A practical guide to generating RSA SSH key pairs, choosing 4096-bit vs Ed25519, protecting private keys with passphrases, and avoiding common mistakes.
Base64 Encoding: When to Use It (and When You Absolutely Should Not)
Base64 is everywhere in web development — but it is not encryption. Learn the right use cases, common mistakes, and how to encode and decode safely.
How to Verify HMAC Signatures in API Webhooks (Stripe, GitHub & More)
Learn how HMAC webhook verification works, why it prevents forged requests, and how to implement signature checks in Node.js with Stripe and GitHub examples.
SHA-256 vs SHA-512: Which Hash Should You Use in 2026?
Compare SHA-256 and SHA-512 for developers. Learn when each hash is the right choice for passwords, file integrity, and API security.
Bcrypt vs Argon2: Which Password Hashing Algorithm is Better?
Compare Bcrypt and Argon2 for password hashing in modern web applications.
What is HMAC? Understanding Hash-Based Message Authentication
Learn how HMAC authentication works and why it matters for API security.
Understanding Base64 Encoding: What It Is and Why We Use It
A clear guide to Base64 encoding, decoding, and common use cases.
Why You Need to Stop Using MD5 Immediately
Why MD5 is broken for security and what to use instead.
How to Use AES Encryption for Beginners: Step-by-Step Guide
A beginner-friendly walkthrough of AES encryption with Cipherly.
How AES-256 Encryption Works: A Plain English Guide
Learn how AES-256 encryption works and why it is considered military-grade.
AES vs RSA: Which Encryption Algorithm Should You Choose?
Compare symmetric and asymmetric encryption for real-world projects.
The Ultimate Guide to RSA Key Pairs for Beginners
Everything you need to know about generating and using RSA key pairs.
JWT Security Best Practices: Avoiding Common Mistakes
Common JWT vulnerabilities and how to avoid them in production.