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Design of image Hash functions based on fluid dynamics model

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Abstract

The chain-like structure is used in most known Hash functions, which is not suitable for digital images. A new structure is adopted to design an image hash function based on the HPP model, a model originally aiming to simulate fluid flows, and impressive for its simplicity, 2D structure, and its ability to support parallel computing. In order to fulfill security requirements of a cryptographic hash function, the HPP model is generalized by combining the original model with a nonlinear substitution operation. Computer simulations and theoretical analyses demonstrate that this generalized model possesses satisfactory properties of randomness and sensitivity for hash functions.

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Authors and Affiliations

  1. College of Computer Science, Chongqing University, Chongqing, 400044, China

    Qing Zhou, Xiaofeng Liao & Jun Liu

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  1. Qing Zhou
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  2. Xiaofeng Liao
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  3. Jun Liu
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Correspondence to Qing Zhou.

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Zhou, Q., Liao, X. & Liu, J. Design of image Hash functions based on fluid dynamics model. Nonlinear Dyn 67, 1837–1845 (2012). https://doi.org/10.1007/s11071-011-0110-7

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  • DOI: https://doi.org/10.1007/s11071-011-0110-7

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