Methods, systems and devices for securing supervisory control and data acquisition (SCADA) communications

摘要

A secure supervisory control and data acquisition (SCADA) system. A SCADA control host system (101) includes a control host (104) and a first transceiver (110A-C), and a remote terminal system (121) includes a remote terminal unit (RTU) (118A-E) and a second transceiver (114A-E). SCADA information is communicated between the control host and the RTU via the transceivers. A host security device (HSD) (102) is coupled to the control host, and a remote security device (RSD) (116A-E) is coupled to the RTU. The HSD and the RSD transparently encrypt and decrypt the SCADA information to give secure communications between the control host and the RTU and between the HSD and the RSD. The HSD includes a module used to generate and communicate a control message containing instructions relating to the operation of the RSD. The RSD includes a module used to receive, interpret, and carry out the instructions of the control message. (62) Divided Out of 544888