Authenticator management
| Task | API family | Notes |
|---|---|---|
| Credential management | fido_credman_* |
Enumerate or delete discoverable credentials; requires supported options / authorization. |
| Biometric enrollment | fido_bio_dev_* |
Discover enrollment support, begin or remove templates. |
| Large blobs | fido_dev_largeblob_* |
Read, write, or remove authenticator-stored blobs. |
| PIN changes |
fido_dev_set_pin()
|
Sets or changes the device PIN. |
| Reset |
fido_dev_reset()
|
Destructive; removes authenticator state. |
Reset and credential deletion are destructive. Query feature support rather than inferring it from the CTAP version.