混沌映射与改进CNOT操作的图像加密算法

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关键词：图像加密；混沌映射；动态密钥；CNOT操作；实时加密

中图分类号：TP309.7 文献标志码：A 文章编号：1001-3695（2026）01-030-0247-09

doi：10.19734/j.issn.1001-3695.2025.05.0188

Image encryption algorithm integrating chaotic mapping and enhanced CNOT operations

Zhang Lei 1，2，3 ，Pu Bingqian 1，2，3 ， Jiang Ge 1，2，3 ，Liu Yutac 1，2，3 ， Chang Liang 1，2，3† （1.ScholofIfomation&Electronicecholog，musiUniersit，ausiHeilonango，hin；.HilogjangProceKy LaboratoryofousItellcfarsinloffa&lecosiUesi Heilongjing54hia3.JusiKeLboatoryfStelitNigatioTecolo&EquimentEgneringecholsi Heilongjiang 154007，China）

Abstract：Toaddresstheshortcomingsof traditionalimageencryptionalgorithmsinresisting known-plaintextattacksand ciphertext-onlyattcks，this paper proposedan imageencryptionalgorithmcombining chaoticmapping with enhanced CNOT ope-rations（IEA-CECO）.The algorithm dynamicall generated chaotic parameters by extracting image hash values，achieving "one-image-one-key”binding.ByemployinganimprovedCNOToperation that incorporatedconditionalflippingof themost significantbitandcascadeddifusion，thenonlinearconfusioncapabilitywassignificantlyenhanced.Experimentalresultsdemonstrate that the proposed algorithm achieves 50% key sensitivity，reduces the histogram standard deviation of encrypted images to8.7，pproachszroiadacntpieloelatonndimproesiforationntropyto79567，hileintaiingale encryption eficiency.IEA-CECOefectivelyresolves isuesofstatic keysandstatistical residue，making itsuitableforhig-security real-time image encryption scenarios.

Key words：image encryption；chaotic mapping；dynamic key；CNOT operation；real-time encryption

0 引言

随着智能手机和移动互联网的快速发展，图像已成为人们日常生活中信息记录和交流的重要载体[1]。（剩余23680字）