#authentication #webauthn


Webauthn Framework for Rust Web Servers

5 releases

✓ Uses Rust 2018 edition

0.1.4 May 7, 2019
0.1.3 Apr 21, 2019
0.1.2 Apr 20, 2019
0.1.1 Apr 19, 2019
0.1.0 Apr 19, 2019

#46 in Authentication

20 downloads per month

MPL-2.0 license

1.5K SLoC


NOTE: This library has NOT received a proper security review of operations yet!!!

Webauthn is a modern approach to hardware based authentication, consisting of a user with an authenticator device, a browser or client that interacts with the device, and a server that is able to generate challenges and verify the authenticators validity.

Users are able to enroll their own tokens through a registration process to be associated to their accounts, and then are able to login using the token which performas a cryptographic authentication.

This library aims to provide useful functions and frameworks allowing you to integrate webauthn into rust web servers. We also will provide template and example javascript to demonstrate the browser interactions required.


As this library aims to be usable in a variety of contexts, we have provided examples in the examples folder. These examples should demonstrate secure and valid use, so please report any issues found, and we'd love to see more examples contributed!

Why OpenSSL?

A question I expect is why OpenSSL rather than some other pure-Rust cryptographic providers. There are two major justfications.

The first is that if this library will be used in corporate or major deployments, then cryptographic audits may have to be performed. It is much easier to point toward OpenSSL which has already undergone much more review and auditing than using a series of Rust crates which (while still great!) have not seen the same level of scrutiny.

The second is that OpenSSL is the only library I have found that allows us to reconstruct an EC public key from it's X/Y points for signature verification. Without this, we are not able to perform authentication of credentials.



~98K SLoC