Secure Strong Coordination

TL;DR

This paper introduces a joint source-channel coding scheme for secure strong coordination over noisy channels, ensuring secrecy and reliable reconstruction, with a complete characterization under certain channel conditions.

Contribution

It proposes a novel coding scheme for secure coordination and characterizes the secure region for specific channel capabilities.

Findings

Proposed a joint source-channel coding scheme for secure coordination.

Achieved a complete characterization of the secure coordination region.

Ensured reliable source reconstruction with secrecy constraints.

Abstract

We consider a network of two nodes separated by a noisy channel, in which the source and its reconstruction have to be strongly coordinated, while simultaneously satisfying the strong secrecy condition with respect to an outside observer of the noisy channel. In the case of non-causal encoding and decoding, we propose a joint source-channel coding scheme for the secure strong coordination region. Furthermore, we provide a complete characterization of the secure strong coordination region when the decoder has to reliably reconstruct the source sequence and the legitimate channel is more capable than the channel of the eavesdropper.