SPC support

[voirtimid]

Hi guys,

I was playing around with FIDO authentication and wanted to try out Secure Payment Confirmation SPC (https://www.w3.org/TR/secure-payment-confirmation/) also. I'm using this library for the server part. Do you have any plans to extend the library with SPC specific features.

Thank you in advance.

Regards,

Oliver

[emlun]

Thanks for asking! Moved to #285.