Can we include permission to only allow certain address to subscribe to streams?

Question

Hi,

Is it possible to allow some address to subscribe to streams? My use case is only allowing authorized address to view the stream data.

Answer 1

No, this is not possible on the low level of streams, because the content of every stream is stored on every node's disk anyway, so it would be a pretend type of security. If you want to restrict access to the content of streams, you need to use encryption for that content.

Comments

I think an alternative would be to create a separate blockchain for permissioned-streams and control connectivity to that chain.