# Package net.corda.node.services

- Interface Summary
  Interface | Description
  --- | ---
  RPCUserService | Service for retrieving `class User` objects representing RPC users who are authorised to use the RPC system. A `class User` contains their login username and password along with a set of permissions for RPC services they are allowed access to. These permissions are represented as Strings to allow RPC implementations to add their own permissioning.

- Class Summary
  Class | Description
  --- | ---
  NotaryChange |
  RPCUserServiceImpl |
  RPCUserServiceKt |
  User |