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Deep Dives & Case Studies

In-depth explorations of real-world system design challenges and solutions

Rainbow Table Attack: A Detailed Guide
System Design
5 min read
saurav9760
Jul 30, 2025

Rainbow Table Attack: A Detailed Guide

Rainbow Table Attack reverses hashed passwords using precomputed tables. Faster than brute-force, but ineffective against salted & slow hashes (bcrypt/PBKDF2). Defense: Always salt + stretch passwords!

Understanding JWTs: Your Guide to JSON Web Tokens
System Design
5 min read
saurav9760
Jul 29, 2025

Understanding JWTs: Your Guide to JSON Web Tokens

Learn how JSON Web Tokens (JWTs) work—the compact, secure keys powering modern authentication. Discover their structure, benefits, security tips, and real-world code examples for seamless API and user auth.

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Results for "JWT"

Found 2 articles matching your search

Revoking JWTs: A Simple Guide
System Design
saurav9760
Jul 29

Revoking JWTs: A Simple Guide

JSON Web Tokens (JWTs) are stateless, making revocation tricky. Use short-lived tokens (e.g., 15m) with refresh tokens, stored server-side, to revoke access by deleting them. Alternatively, blacklist JWTs using a unique jti, change the secret key, or use token versions.

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