Authentication Reference Implementation for Cloudflare Workers with PBKDF2, JWT Sessions, and NIST Compliance
By
vhsdev
Slow-proofed and worth the wait. Worth its weight in flour.
Summary
This article presents a comprehensive authentication reference implementation for Cloudflare Workers that serves as an educational resource for learning authentication best practices. The implementation includes PBKDF2 password hashing, JWT dual-token sessions, constant-time comparison, sliding expiration, and observability features. It's built with Hono, Turso database, and optional Redis caching, following strict TypeScript and adhering to NIST security standards (SP 800-63B for credentials and SP 800-132 for key derivation). The system includes security features like rate limiting, adaptive proof-of-work challenges, and protection against brute-force attacks.
Key quotes
· 4 pulledA from-scratch authentication reference implementation for Cloudflare Workers — PBKDF2 password hashing, JWT dual-token sessions, constant-time comparison, sliding expiration, and a removable observability plugin
Every design choice traces back to a standard: NIST SP 800-63B for credentials, NIST SP 800-132 for key derivation
Demo note: The login endpoint is rate-limited and protected by adaptive PoW challenges. Repeated failures return increasing proof-of-work difficulty before 429 Too Many Requests
🔐 Learn authentication by building it right. An extensible, standards-compliant reference implementation for Cloudflare Workers with Hono, Turso, PBKDF2, and JWT dual-token sessions
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