Secured telemetry based on time-variant sensing matrix – An empirical study of spectroscopic profiling

This paper proposes a CS (Compressed Sensing)-crypto telemetry mechanism. Time-variant sub-Nyquist sensing matrix is designed as a dynamic cryptographic key to secure the node-to-node signal transmission. The computational secrecy of the proposed method is verified through a case study of Raman spectroscopy, in which we have shown that the blind reconstruction is inherently stochastic, and the search space grows exponentially with signal dimension.