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改进的基于位平面的图像加密算法 Title:AnEnhancedBit-Plane-BasedImageEncryptionAlgorithm Abstract: Astherapidgrowthofdigitalimagetransmissionandstorage,theneedforsecureimageencryptionalgorithmshasbecomecrucial.Thispaperproposesanenhancedbit-plane-basedimageencryptionalgorithmthataimstoprovidebettersecurityandefficiencycomparedtoexistingalgorithms.Thealgorithmleveragesthedistinctivecharacteristicsofbitplanesandutilizesadvancedencryptiontechniquestoensureconfidentialityandintegrityoftheencryptedimages.Experimentalresultsdemonstratetheeffectivenessandrobustnessoftheproposedalgorithmagainstvariouscryptographicattacks,makingitapromisingsolutionforimageencryptioninpracticalapplications. Keywords:Imageencryption,Bit-plane-basedalgorithm,Cryptographicattacks,Confidentiality,Integrity 1.Introduction Withtheprevalenceofdigitalimagetransmissionandstorage,theneedtoprotecttheconfidentialityandintegrityofsensitiveimagedatahasbecomeincreasinglyimportant.Imageencryptionalgorithmsaimtotransformtheoriginalimageintoaciphertext,makingitunreadabletounauthorizedentities.Bit-plane-basedalgorithmshavegainedpopularityduetotheirabilitytoexploitthestatisticalpropertiesofimagesandprovideefficientencryptionschemes.Thispaperpresentsanenhancedbit-plane-basedimageencryptionalgorithmthatenhancesthesecuritywhilemaintainingtheefficiencyofencryption. 2.RelatedWork Severalbit-plane-basedencryptionalgorithmshavebeenproposedintheliterature.Thesealgorithmstypicallydividetheimageintobitplanesandapplyencryptionoperationsoneachplaneindividually.However,mostoftheexistingalgorithmssufferfromlimitationssuchasvulnerabilitytoknown-plaintextattacksorinsufficientsecurityagainstadvancedcryptanalytictechniques.Therefore,thereisaneedforanenhancedalgorithmthataddressestheselimitationsandensuresahigherlevelofsecurity. 3.ProposedAlgorithm Theenhancedbit-plane-basedimageencryptionalgorithmconsistsofseveralkeysteps: 3.1ImagePreprocessing Thealgorithmbeginswithapreprocessingsteptotransformtheoriginalimageintoabinaryimage.Thisstepaimstoreduc