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Sumit

Full Stack MERN Developer

Building developer tools and SaaS products

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Sumit is a Full Stack MERN Developer focused on building reliable developer tools and SaaS products. He designs practical features, writes maintainable code, and prioritizes performance, security, and clear user experience for everyday development workflows.

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password securitycryptographydevops

Cryptographically Secure Password Generation: Architecture, Entropy, and Production-Grade Implementation

A deep technical guide to building and using a cryptographically secure password generator, covering entropy, RNG design, security pitfalls, and scalable production architecture.

Mar 12, 202412 min read
jwtsecuritybest-practices

JWT Best Practices Checklist: Production-Ready Guidelines for Secure Token-Based Authentication

A comprehensive checklist of JWT best practices for production systems. Covers validation rules, secure storage, key management, and common mistakes engineers must avoid.

Mar 10, 20249 min read
bcrypthashingsecurity

Hash Generator Explained: Secure Data Hashing for Production Systems

A production-grade, deeply technical guide to secure data hashing using bcrypt, covering internals, architecture decisions, performance trade-offs, and real-world failure scenarios for modern distributed systems.

Feb 18, 20248 min read
jwtauthenticationrefresh-token

JWT Refresh Token Architecture: Designing Secure Session Continuity for Modern Applications

A deep technical guide to designing secure JWT refresh token systems. Covers rotation strategies, token revocation, storage models, and real-world implementation patterns for scalable authentication.

Feb 15, 202410 min read
bcryptsha256password security

Bcrypt vs SHA-256 for Password Storage: Why Fast Hashing Fails in Secure Systems

A deep technical analysis explaining why SHA-256 and other fast hashing algorithms are unsuitable for password storage, and how bcrypt provides a secure alternative for modern systems.

Feb 5, 202410 min read
password storagebcryptargon2

Secure Password Storage: Hashing, Salting, Peppering, and Zero-Trust Architecture

A production-grade guide to secure password storage covering hashing algorithms, salting, peppering strategies, and zero-trust architecture patterns for modern systems.

Feb 5, 202411 min read
jwtclaimsauthentication

JWT Claims Deep Dive: Designing, Validating, and Optimizing Token Payloads for Secure Systems

An advanced guide to JWT claims, covering standard vs custom claims, validation strategies, payload optimization, and security implications in production systems.

Jan 10, 20249 min read
jwtmicroservicesauthentication

JWT in Microservices: Designing Secure Token-Based Authentication Across Distributed Systems

A deep technical guide on implementing JWT authentication in microservices architecture. Covers service-to-service trust, gateway validation, key distribution, and zero trust security models.

Dec 5, 202310 min read
password entropycybersecuritydevops security

Password Entropy, Attack Cost Modeling, and Real-World Security Benchmarks

A deep technical analysis of password entropy, brute-force economics, GPU cracking capabilities, and how to model real-world attack cost to generate truly secure passwords.

Nov 18, 202310 min read
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