Currently, Restate does not support this functionality out of the box. Since Restate does not need access to input/output messages or state (it ships it as byte

Currently, Restate does not support this functionality out of the box. Since Restate does not need access to input/output messages or state (it ships it as bytes to the service endpoint), you could add your own client-side encryption mechanism. In the foreseeable future, Restate will probably add a more integrated solution for it.