Lattices for Physical-layer Secrecy: A Computational Perspective

Fabio Fernandes; Sriram Vishwanath

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arXiv · 1109.6276

Lattices for Physical-layer Secrecy: A Computational Perspective

Fabio Fernandes·Sriram Vishwanath

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Abstract

In this paper, we use the hardness of quantization over general lattices as the basis of developing a physical layer secrecy system. Assuming that the channel state observed by the legitimate receiver and the eavesdropper are distinct, this asymmetry is used to develop a cryptosystem that resembles the McEliece cryptosystem, designed to be implemented at the physical layer. We ensure that the legitimate receiver observes a specific lattice over which decoding is known to be possible in polynomial-time. while the eavesdropper observes a lattice over which decoding will prove to have the complexity of lattice quantization over a general lattice

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Fabio Fernandes, Sriram Vishwanath. 2011-09-28. Lattices for Physical-layer Secrecy: A Computational Perspective. https://arxiv.org/abs/1109.6276

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