Source coding under security constraints

Information theoretic security characterizes the fundamental limitations of unconditional security against computationally unbounded adversaries. In this chapter, secure distributed compression in the presence of eavesdropper(s) is considered from the information theoretic security perspective. Basic models and fundamental results are summarized for lossless and lossy source compression. Distributed lossless compression under security constraints is analyzed for single/multiple eavesdroppers, and single/multiple legitimate receivers considering correlated side information at the eavesdroppers and the legitimate receivers. The relationship of the underlying model to the secret key generation model, and fundamental results on secure joint source-channel coding are also reviewed.