Claude Code auth

Password Hashing Not Secure Enough

Passwords are hashed but using a weak algorithm. Plain MD5, SHA-1, or simple salted SHA-256 is used instead of proper password hashing. Security audit flags the implementation as inadequate for protecting user credentials.

Password storage exists but doesn't use modern algorithms that resist brute-force attacks.

Error Messages You Might See

Security audit: weak password hashing Password algorithm not sufficient MD5 hashing detected (insecure)
Security audit: weak password hashingPassword algorithm not sufficientMD5 hashing detected (insecure)

Common Causes

  1. Using non-password-specific algorithm: SHA-256, SHA-512 are too fast for passwords
  2. Insufficient salt or no salt at all
  3. Hash function not iterated: bcrypt, argon2 are intentionally slow
  4. Key derivation instead of password hash: PBKDF2 acceptable but bcrypt/argon2 better
  5. No pepper (application secret) combined with salt

How to Fix It

Use bcrypt (industry standard) or argon2 (newer, stronger). Never use: MD5, SHA-1, SHA-256 alone. Library handles salt and iteration automatically. Example: bcrypt.hash(password, 10) - 10 is cost factor. Verify: bcrypt.compare(password, hash). If migrating: rehash on next login, don't bulk convert.

Real developers can help you.

Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever Dor Yaloz Dor Yaloz SW engineer with 6+ years of experience, I worked with React/Node/Python did projects with React+Capacitor.js for ios Supabase expert rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems Meïr Ankri Meïr Ankri Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews. Victor Denisov Victor Denisov Developer Vlad Temian Vlad Temian 15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox). Cursor ambassador and agentic tooling builder. I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti. I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks. https://blog.vtemian.com/ Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience

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Frequently Asked Questions

Why is bcrypt better than SHA-256?

bcrypt is slow by design (intentional CPU cost). SHA-256 is fast (designed for checksums). Slow = expensive for attackers trying brute force.

How to use bcrypt?

Hash: bcrypt.hash(password, 10). Verify: bcrypt.compare(password, hash) returns true/false. 10 is cost (higher = slower).

How to migrate from weak hashing?

Don't bulk upgrade. On next login, verify old hash, then rehash with bcrypt and store new hash. Old hashes deleted eventually.

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