REVOKED · badge registration

One-time: register the DEF CON 34 badge as the FIDO2 authenticator that gates on-chain revocation. Server must run with BADGE_SETUP=1.
  1. Plug the badge in (FIDO2 mode). Smoke-test at webauthn.io first.
  2. Click below. When prompted, choose the external security key (not Touch ID) and touch the badge.
  3. On success, set BADGE_WEBAUTHN=1 and restart the server — revocation now needs the badge.
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