Sensor technology and signal analysis: High security encryption supervision

An examination is made of the current approaches to sensor line supervision and their relative effectiveness against the range of easily available circumvention techniques is assessed, compared to encrypted line supervision. Features of high security encrypted line supervision, including encryption techniques, interactive polling, the generation of random data, proprietary algorithms and keys, serial numbers and the processing of such an approach are discussed, including the flexibility offered by miniaturization of the microprocessor controlled circuits and modular system design. How an encryption module can be deployed within an overall high security system is highlighted. Examples of practical applications provide insight into the effective and efficient use of this advanced security technology