Imagine a groupbot verified by all the users in the group and when users send message to the group, the message is signed by the groupbot's public key. then the groupbot does the job of encrypting the message with all user public key and sending it to everyone. but the matter here is, there should not be the need of a groupbot ond the server software should have something implemented that functions like the groupbot
I was wondering if there is a similar implementation of something like this right now or perhaps a better one.