Optical Hash function based on the interaction between multiple scattering media and coherent radiation

摘要

An approach for constructing optical hash function has been proposed based on the interaction between multiple scatteringmedia and coherent radiation. Unlike the traditional Hash function via mathematical transformations or complex logicoperations, the proposed method employs a multiple scattering media and Sobel filters for data scrambling and featuresextraction. An arbitrary length input data can be compressed into a fixed length (256-bit) Hash value after a cascadeiterative processing. Its safety relies on the unpredicted and non-duplicated disorder multiple scattering media, in otherword, there is tremendous difficulty of knowing the multiple scatting media with a specific internal state or efficientlysimulating the light interaction effect between the multiple scattering media. Simulation results are presented todemonstrate the avalanche effect and collision resistance performance of the proposed designing strategy of the opticalHash function.