本标准定义了安全SCADA通信协议（SSCP），这是一种加密协议，可提供完整性和可选保密性，用于变电站串行链路通信的网络安全，无需广播消息支持和任何时间要求。它不涉及特定的应用程序或硬件实现，并且独立于底层通信协议。

This standard defines the Secure SCADA Communications Protocol (SSCP), a cryptographic protocol to provide integrity, and optional confidentiality, for cyber security of substation serial links communications without broadcast message support and without any time requirements. It does not address specific applications or hardware implementations and is independent of the underlying communications protocol.