Is hub-to-hub communication encrypted? I know grpc can be, but is it? What about gossip?

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If you want to hide the originating hub of a cast.

It’s public info why does it need to be? Just wondering

I don't it does since its libp2p for gossiping

I just don’t know why encrypting will be helpful because the hubs would need to decrypt the data and all that data is public anyways