SocketCluster Authentication Module

sc-auth is a foundational authentication module specifically designed for the SocketCluster real-time framework. It facilitates JSON Web Token (JWT) based authentication, which is the default mechanism in SocketCluster. This package, currently at version 6.0.0 (released approximately eight years ago), handles the core logic for signing and verifying JWTs within a SocketCluster environment. While newer SocketCluster documentation often guides developers towards using `agServer.auth.signToken` or `jsonwebtoken` directly, `sc-auth` provides a structured `AuthEngine` for this purpose. Its primary role is to enable persistent user sessions, cross-browser tab authentication, and secure access control by signing arbitrary data objects with a secret key. Due to its age, developers should be aware that active development is minimal, and practices may have evolved in the broader SocketCluster ecosystem. Its release cadence is effectively dormant, with its last major update occurring many years ago.