AlfioEmanueleFresta/xdg-credentials-portal

FIDO2: U2F support (downgrade to U2F)

AlfioEmanueleFresta opened this issue · 0 comments

Simple ES256 CTAP2 requests can be downgraded to their CTAP1 equivalent, to work with FIDO U2F authenticators.

See docs:
https://fidoalliance.org/specs/fido-v2.0-ps-20190130/fido-client-to-authenticator-protocol-v2.0-ps-20190130.html#u2f-interoperability

Requires:

  • #9: Ctap1RegisterRequest support for exclude_credentials