Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix usage check #8

Open
wants to merge 1 commit into
base: master
Choose a base branch
from

Conversation

robin-nitrokey
Copy link

This patch fixes the usage check in the device detection:

  • Instead of usage 0x21, we now check for usage 0x01 as mandated by the FIDO2 spec, § 11.2.8.1 [0].
  • Instead of using the last usage value in the USB descriptor, which belongs to an endpoint and not to the device, we now use the first (non-zero) value.

The descriptor parsing could still be improved, but this should fix compatibility with all compliant FIDO2 devices.

This patch also adds a simple list example for listing the detected devices.

[0] https://fidoalliance.org/specs/fido-v2.1-ps-20210615/fido-client-to-authenticator-protocol-v2.1-ps-20210615.html#usb-discovery


Upstream PR: ArdaXi#5

Context:

Tested with:

  • Nitrokey 3
  • Nitrokey FIDO2

This patch fixes the usage check in the device detection:

- Instead of usage 0x21, we now check for usage 0x01 as mandated by the
  FIDO2 spec, § 11.2.8.1 [0].
- Instead of using the last usage value in the USB descriptor, which
  belongs to an endpoint and not to the device, we now use the first
  (non-zero) value.

The descriptor parsing could still be improved, but this should fix
compatibility with all compliant FIDO2 devices.

This patch also adds a simple list example for listing the detected
devices.

[0] https://fidoalliance.org/specs/fido-v2.1-ps-20210615/fido-client-to-authenticator-protocol-v2.1-ps-20210615.html#usb-discovery
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant