Yibico's python-fido2 library (https://github.com/Yubico/python-fido2 https://github.com/Yubico/python-fido2) contains (a minimal) CBOR implementation too: http

Yibico's python-fido2 library (https://github.com/Yubico/python-fido2 https://github.com/Yubico/python-fido2) contains (a minimal) CBOR implementation too: https://developers.yubico.com/python-fido2/API_Documentation/autoapi/fido2/cbor/index.html https://developers.yubico.com/python-fido2/API_Documentation... I found it wouldn't encode `None`s, but didn't dig at all, just worked around it. Star count would place it about midway in the list.