We dissected disadvantages of the existing transmission protocols and improved its performance of dada communication security. We have proposed a security communication protocol, called as RTUSec, for remote terminal units. RTUSec adds a security layer to the existing three layer model, so that the data security is improved. After analyzing advantage and disadvantage of the present algorithms of cryptography and authentication for data communication, we have designed a security mechanism with DES and HMAC to deal with security problems like spoofing during the communication between RTUs and controlling centers.
Using Logical Error Detection in Software Controlling Remote-Terminal Units to Predict Critical Information Infrastructures Failures
