Arken - Passwordless auth middleware with secp256k1 keys

Show HN: Arken – Passwordless auth middleware using secp256k1 keys

Arken is a passwordless authentication middleware for web servers that eliminates stored secrets. Instead of passwords or session tokens, users sign a one-time nonce with their private key, and the server verifies the signature against a DID. Built with a Rust cryptographic core and available as Express and FastAPI middleware, Arken offers phishing resistance, portable identity, and zero server-side secrets. It works with any client that can sign an Ethereum message, making it language-agnostic and easy to integrate. Try the live demo or install via npm or PyPI.

The user holds the secret, the server holds nothing.

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2026-10-30