预览加载中，请您耐心等待几秒...

Logistic映射在数字图像加密算法中的应用.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

Logistic映射在数字图像加密算法中的应用 Title:TheApplicationofLogisticMappinginDigitalImageEncryptionAlgorithm Abstract: Digitalimageencryptionplaysavitalroleinsecuringsensitivevisualinformation.Oneeffectiveapproachtoachievingimageencryptionisthroughtheuseofchaostheory.Amongthevariouschaos-basedencryptionalgorithms,LogisticMappingstandsoutforitssimplicity,versatility,androbustness.ThispaperexplorestheapplicationoftheLogisticMappingalgorithmindigitalimageencryption,discussingitsunderlyingprinciples,advantages,andpotentialchallenges.Furthermore,itprovidesanoverviewofrecentadvancementsinimageencryptiontechniquesutilizingLogisticMapping,highlightingtheireffectivenessandrelevantresearchdirections. 1.Introduction: Digitalimagescontainvastamountsofinformation,makingthemhighlyvulnerabletounauthorizedaccessandmalicioustampering.Encryptiontechniquesarecrucialforprotectingimageintegrityandconfidentiality.Chaostheoryandchaos-basedalgorithmshaveproventobehighlyefficientinimageencryptionduetotheirrandomandnon-linearcharacteristics.TheLogisticMappingalgorithm,extensivelyusedinvariousfields,offersgreatpotentialforsecureimageencryption. 2.LogisticMappingAlgorithm: TheLogisticMappingalgorithmisaone-dimensionaldiscretechaoticmapthatexhibitshighlychaoticbehavior.Itisdefinedbytherecursiveequationx(n+1)=r*x(n)(1-x(n)),wherex(n)isthecurrentstate,andristhecontrolparameterthatdeterminesthechaoticrange.TheLogisticMapgeneratesasequenceofpseudo-randomnumbersthathaveexcellentrandomnessproperties. 3.Pixel-levelImageEncryption: TheLogisticMappingalgorithmcanbeemployedforpixel-levelimageencryption.BytreatingeachpixelvalueasaninputtotheLogisticMap,chaos-basedtransformationsareappliedtoscramblethepixelpositionsandalterpixelvaluesaccordingtothegeneratedpseudo-randomsequence.Thistechniqueensuresthattheencryptedimageappearsasrandomnoiseandisindistinguishablefromtheoriginalimagewithoutproperdecryption. 4.AdvantagesofLogisticMapping-basedEncryption: 4.1Robustness:LogisticMappingusesasinglecontrolparameter,makingitcomput