Authenticate without
handling passwords.
Zero-knowledge authentication infrastructure for engineering teams. Prove identity without revealing secrets.
Why ZKAuth?
Authentication that assumes the server will be compromised.
Zero Knowledge
The server never sees user passwords. Proofs are generated client-side using cryptographic primitives.
No Shared Secrets
We store cryptographic verifiers, not password hashes. A breach yields nothing usable.
Device Binding
Sessions are bound to specific devices using non-exportable keys generated in the browser.
How it Works
The cryptographic handshake that protects your users.
Key Generation
Client derives a private value from the password and generates a device-specific cryptographic key.
Registration
Client sends only the public commitment (verifier) to the server. Secrets never leave the device.
Proving
To login, the client generates a zero-knowledge proof signed by the device key.
Verification
Server verifies the proof mathematically without learning the secret, then issues a session.
Ready to secure your users?
Start integrating ZKAuth today. No credit card required.