Security11 min read
JWT Structure Decoded: Header, Payload, and Signature
A JWT is three Base64URL parts joined by dots — header.payload.signature. The first two are readable by anyone; the signature makes it tamper-evident.
M H Tawfik
Toolk Blog
Developer guides, standards & tool tutorials
Practical explanations with worked examples, source links, and direct paths to the browser tools used in each workflow.
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Showing 4 of 16 posts
Security11 min read
How to Create a Strong Password (and Why Length Beats Complexity)
A strong password is long, random, and unique. Compare password entropy, passphrases, reuse risk, and the final NIST SP 800-63B-4 requirements.
M H Tawfik
Security11 min read
Hashing vs Encryption vs Encoding: What's the Difference?
Compare hashing, encryption, and encoding by purpose, reversibility, keys, and security. See exact use cases, common mistakes, and standards-backed examples.
M H Tawfik
Security10 min read
Base64 Encoding: Complete Developer's Guide with Examples
Learn how Base64 converts bytes to text, why it adds about 33% overhead, when URL-safe encoding matters, and why Base64 provides no encryption or secrecy.
M H Tawfik