Multi signature and/or threshold signature examples

[donovanhide]

Hi,

this request might be slightly beyond the scope of this project, but an answer would be very much gratefully received! This post discusses the use of ed25519 and Schnorr signatures.

https://ripple.com/dev-blog/curves-with-a-twist/

It would be incredibly useful to crypto-novices like myself if your package could be extended with the feature of, or an example provided of how to create the described multi signature and/or threshold signatures using the ed25519 curve.

The aim for my project is to have a transaction which is encoded and then hashed and then multiple private key holders can sign this hash and if at least a majority of signatures from the group do so, the transaction is verified.

I can see that pond does something similar here:

https://github.com/agl/pond/blob/master/bbssig/bbssig.go

But perhaps that is more complicated than the Schnorr signature method due to the membership addition and revocation?

Thanks for any response!