Statistical Cryptography using a Fisher-Schrödinger Model

Details Statistical Cryptography using a Fisher-Schrödinger Model Statistical Cryptography using a Fisher-Schrödinger Model

2007-01-15

arxiv.org/abs/cond-mat/0701319v1

Physics

Condensed Matter

Statistical Mechanics

8 pages + 2 figures

Scientific paper

A principled procedure to infer a hierarchy of statistical distributions possessing ill-conditioned eigenstructures, from incomplete constraints, is presented. The inference process of the \textit{pdf}'s employs the Fisher information as the measure of uncertainty, and, utilizes a semi-supervised learning paradigm based on a measurement-response model. The principle underlying the learning paradigm involves providing a quantum mechanical connotation to statistical processes. The inferred \textit{pdf}'s constitute a statistical host that facilitates the encryption/decryption of covert information (code). A systematic strategy to encrypt/decrypt code via unitary projections into the \textit{null spaces} of the ill-conditioned eigenstructures, is presented. Numerical simulations exemplify the efficacy of the model.

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