Random Search Based Efficient Chaotic Substitution Box Design for Image Encryption

Int. J. Rough Sets Data Anal. Pub Date : 2018-04-01 DOI:10.4018/IJRSDA.2018040107

Musheer Ahmad, Zishan Ahmad

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引用次数: 34

Abstract

CryptographicSubstitution-boxesaresourceofnonlinearityinmodernblockencryptionsystems. Therobustnessandconfusionimpartedthroughthesesystemsheavilyrelyonthestrengthoftheir S-boxes.ThisbringsnewchallengestodesigncryptographicallypotentS-boxestodevelopstrong encryptionsystems.Inthispaper,aneffectivemethodtodesignefficient8×8S-boxisproposed. The design methodology incorporates piece-wise linear chaotic map based random search. The S-boxobtainedbytheproposedmethodologyistestedagainststandardstatisticaltestslikebijective property, strict avalanche criteria, nonlinearity, differential uniformity, bits independent criteria, andlinearapproximationprobability,revealingitsoutstandingperformance.TheproposedS-boxis comparedwithsomerecentchaos-based8×8S-boxes.Moreover,theproposedS-boxisappliedto encryptplain-imagewithproposedS-boxtransformationtounveilandhighlightitsinherentgreat encryptionstrength.Theresultsconfirmthatthedesignisconsistentandsuitableforbuildingstrong encryptionsystemsforsecurecommunication. KEywoRDS Chaotic System, Image Encryption, Random Search, Secure Communication, Security, Substitution-Box

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基于随机搜索的图像加密高效混沌替换盒设计

CryptographicSubstitution-boxesaresourceofnonlinearityinmodernblockencryptionsystems。Therobustnessandconfusionimpartedthroughthesesystemsheavilyrelyonthestrengthoftheir S-boxes。ThisbringsnewchallengestodesigncryptographicallypotentS-boxestodevelopstrong encryptionsystems.Inthispaper，aneffectivemethodtodesignefficient8×8S-boxisproposed。设计方法结合了基于分段的线性混沌地图的随机搜索。> > S-boxobtainedbytheproposedmethodologyistestedagainststandardstatisticaltestslikebijective性质，> >严格雪崩> >准则，> >非线性，> >微分> >一致性，> >位独立> >准则，> > andlinearapproximationprobability，revealingitsoutstandingperformance。TheproposedS-boxis comparedwithsomerecentchaos-based8×8S-boxes。Moreover，theproposedS-boxisappliedto encryptplain-imagewithproposedS-boxtransformationtounveilandhighlightitsinherentgreat encryptionstrength。Theresultsconfirmthatthedesignisconsistentandsuitableforbuildingstrong encryptionsystemsforsecurecommunication。关键词混沌系统，图像加密，随机搜索，安全通信，安全性，替换框

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Int. J. Rough Sets Data Anal.

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