As a first step towards adding Object Integrity Proofs (FEP-8b32) to #Fedify, I've made it support #Ed25519 keys. I've also enabled multiple keys to be associated with an actor. For example, if you look at the actor from the Fedify Example Blog (https://fedify-blog.deno.dev/users/fedify-example), you'll see that it has two public keys, one for RSA and one for Ed25519.
You can try it out in version 0.10.0-dev.190+4dffb89a.
Actors now have the #assertionMethods property, and the #Multikey class has been added. For example, if you look at the the actor from the Fedify Example Blog (https://fedify-blog.deno.dev/users/fedify-example), you can see that it has the assertionMethods property in addition to the publicKey property.
You can try it out in version 0.10.0-dev.196+55cc34d1.
Thanks to @silverpill, #Fedify is finally FEP-8b32 compliant! Though it's not ready for general release yet, it's passing tests in the latest main branch. I'll test it with Mitra and other FEP-8b32-compliant implementations, and if it works well, it'll be included in 0.10.0.
You can try it out in version 0.10.0-dev.205+0cbca257.