True random number generator based on mouse movement and chaotic hash function

Authors:
Qing Zhou;Xiaofeng Liao;Kwok-wo Wong;Yue Hu;Di Xiao
Affiliations:
Department of Computer Science and Engineering, Chongqing University, Chongqing 400044, PR China;Department of Computer Science and Engineering, Chongqing University, Chongqing 400044, PR China;Department of Electronic Engineering, City University of Hong Kong, Hong Kong, PR China;Department of Computer Science and Engineering, Chongqing University, Chongqing 400044, PR China;Department of Computer Science and Engineering, Chongqing University, Chongqing 400044, PR China
Venue:
Information Sciences: an International Journal
Year:
2009

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Abstract

A true random number generator (TRNG) makes use of a non-deterministic source to produce randomness. It is considered as more secure than a pseudorandom number generator as the degree of randomness is higher. In this letter, we propose a novel TRNG which generates random bits by moving the mouse casually. It is convenient, universal and low-cost for the personal computer (PC) platform. To eliminate the regular patterns of mouse movements caused by the habit of the same user, we propose three TRNGs based on chaotic hash functions. Experiments are conducted to evaluate the speed, diffusion and randomness performance of these TRNGs. The results show that two of them possess satisfactory performance and can be implemented on common PC platform.