As we are actively developing this library and are hugely influenced by Yubico's libfido2 and also copied some code, we need to match their license (or something compatible).
They use a BSD 2-Clause license. I would therefore vote for the same license.
However, I would be glad for how to also attribute our own code. Dual-Copyright? How do we show which parts are from libfido2 and which changes are from us. This is pretty intermingled.
As we are actively developing this library and are hugely influenced by Yubico's libfido2 and also copied some code, we need to match their license (or something compatible).
They use a BSD 2-Clause license. I would therefore vote for the same license.
However, I would be glad for how to also attribute our own code. Dual-Copyright? How do we show which parts are from libfido2 and which changes are from us. This is pretty intermingled.