Specification

We need the ability to provide an alternative certificate if the ed25519 certificate is not supported by the client. We will need this if we want to serve web pages to web browsers.

This may be implemented using the following boring SSL config options.

1. https://docs.rs/boring/latest/boring/ssl/struct.SslContextBuilder.html#method.set_verify_algorithm_prefs
2. https://docs.rs/boring/latest/boring/ssl/struct.SslContextBuilder.html#method.set_select_certificate_callback

Some other options may be needed. I'll need to look into this more.

Additional context

• Related Create QUIC library that can be exposed to JS and uses the Node dgram module #1

Tasks

1. Determine if it's possible to select server certificate based on client's support for it.
2. Implement a method for providing an alternative certificate if ed25519 is not supported.