hybrid security approaches for digital images

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1、㠖欧䥽HybridSecurityApproachesforDigitalImagesⷵ䱠₢₩帰並㧉䱠ⷵ₝ぴ䲚ⷵ⚆201514060110⇫劔Ɫ⚜JoshuaCalebDagadu㖖⺋㟨゗ProfessorJian-PingLi࠶㊫ਧᇶ㓗⌘1UDCⷵ⇜幉㠖HybridSecurityApproachesforDigitalImages˄仈਽઼࢟仈਽˅JoshuaCalebDagadu˄֌㘵ဃ਽˅ᤷሬᮉᐸProfessorJian-PingLi䟄⷟䱠㔏⮶ⷵ㒟掌˄ဃ਽ǃ㙼〠ǃঅս਽〠˅⭣䈧ᆖս㓗࡛◩⭺ᆖ、

2、уъ帰並㧉䱠ⷵ₝ぴ䲚ᨀӔ䇪᮷ᰕᵏ2018.04.09䇪᮷ㆄ䗙ᰕᵏ2018.06.07ᆖսᦸҸঅս઼ᰕᵏ䟄⷟䱠㔏⮶ⷵ2018㄃06㦗ㆄ䗙ငઈՊѫᑝ䇴䰵Ӫ⌘1˖⌘᰾ljഭ䱵ॱ䘋࠶㊫⌅UDCNJⲴ㊫ਧHybridSecurityApproachesforDigitalImagesADoctoralDissertationSubmittedtoUniversityofElectronicScienceandTechnologyofChinaDiscipline:ComputerScienceandTechnolo

3、gyAuthor:JoshuaCalebDagaduSupervisor:ProfessorJian-PingLiSchool:SchoolofComputerScienceandEngineering䕻⒪㊶⭿㢝ᵜӪ༠᰾ᡰ੸ӔⲴᆖս䇪᮷ᱟᵜӪ൘ሬᐸᤷሬл䘋㹼Ⲵ⹄ウᐕ֌৺ਆᗇⲴ⹄ウᡀ᷌DŽᦞᡁᡰ⸕ˈ䲔Ҷ᮷ѝ⢩࡛࣐ԕḷ⌘઼㠤䉒Ⲵൠᯩཆˈ䇪᮷ѝнवਜ਼ަԆӪᐢ㓿ਁ㺘ᡆ᫠߉䗷Ⲵ⹄ウᡀ᷌ˈҏнवਜ਼Ѫ㧧ᗇ⭥ᆀ、ᢰབྷᆖᡆަᆳᮉ㛢ᵪᶴⲴᆖսᡆ䇱Җ㘼⭘䗷ⲴᶀᯉDŽоᡁа਼ᐕ֌Ⲵ਼ᘇሩᵜ⹄ウᡰڊⲴԫօ䍑⥞൷ᐢ൘䇪᮷ѝ֌Ҷ᰾⺞Ⲵ

4、䈤᰾ᒦ㺘⽪䉒᜿DŽ֌㘵ㆮ਽˖______________ᰕᵏ˖ᒤᴸᰕ幉㠖∎䞷㘗㧒ᵜᆖս䇪᮷֌㘵ᆼޘҶ䀓⭥ᆀ、ᢰབྷᆖᴹޣ؍⮉ǃ⭘ᆖս䇪᮷Ⲵ㿴ᇊˈᴹᵳ؍⮉ᒦੁഭᇦᴹޣ䜘䰘ᡆᵪᶴ䘱Ӕ䇪᮷Ⲵ༽ঠԦ઼⻱ⴈˈ䇨䇪᮷㻛ḕ䰵઼ُ䰵DŽᵜӪᦸᵳ⭥ᆀ、ᢰབྷᆖਟԕሶᆖս䇪᮷Ⲵޘ䜘ᡆ䜘࠶޵ᇩ㕆ޕᴹޣᮠᦞᓃ䘋㹼Ự㍒ˈਟԕ䟷⭘ᖡঠǃ㕙ঠᡆᢛ᧿ㅹ༽ࡦ᡻⇥؍ᆈǃ≷㕆ᆖս䇪᮷DŽ˄؍ᇶⲴᆖս䇪᮷൘䀓ᇶਾᓄ䚥ᆸ↔㿴ᇊ˅֌㘵ㆮ਽˖______________ሬᐸㆮ਽˖______________ᰕᵏ˖ᒤᴸᰕ᪈㾱㛧尐䲿⵰ᮠᆇമ؍ᰐ઼ޡޜᮠཊབྷˈ⭘

5、䟿བྷⲴ㔏㌫ؑ⭥઼䮯໎㓗ᮠᤷⲴۿᣔⲴ仁䚃㻛⭘ҾՐ䗃઼Ր᫝ؑᝏ᭿䲔৫ᴹ⋑ᒦ䘉㘼ˈ᚟ؑӪ⿱ᱟ࡛⢩ˈ᚟ؑ᚟DŽഐ↔ˈᆹޘՐ䗃઼ᆈۘᮠᆇമۿⲴ䴰≲ᰕ⳺໎࣐DŽ൘༴⨶ᮠᆇമۿᰦˈᒦ㔃ਸᐢ⸕Ⲵᇶ⸱㇇⌅˄ྲDES઼AES˅⴨ޣⲴ㕪䲧ᣕ੺ˈ◰ਁҶӪԜሩᴤ儈᭸ᆹޘⲴമۿ࣐ᇶ㌫㔏Ⲵ⹄ウˈ䘉ަѝབྷ䜘࠶Ⲵ⹄ウ䜭ᱟสҾ␧⊼⨶䇪ⲴDŽ␧⊼⨶䇪оDNA䇑㇇ㅹަԆᢰᵟ⴨㔃ਸᐢ㓿㻛䇱᰾ᱟമۿ࣐ᇶᯩṸѝᴰᴹࡽ䙄Ⲵᯩ⌅ѻаˈ䈕ᯩ⌅䙏ᓖ⴨ሩ䖳ᘛˈᒦфሩ਴⿽ᖒᔿⲴᆹޘ᭫ࠫᨀ׋ҶっᇊᙗDŽቭ㇑ྲ↔ˈ䘉Ӌ␧⊼࣐ᇶᯩ⌅ӽ❦㕪ѿаᇊⲴ䙏ᓖ઼っڕᙗˈഐ↔䴰㾱᧒㍒

6、᭩䘋ԕ䗮ࡠᡰ䴰Ⲵḷ߶DŽ䲔Ҷ࣐ᇶѻཆˈ≤ঠҏᱟਖа⿽ᆹޘᢰᵟˈণ൘䀓ᇶമۿᰦˈҏ㜭⺞؍ᵪᇶᙗǃᆼᮤᙗ઼䓛ԭ傼䇱DŽնᱟˈᆳᒦн㜭؍ᣔമۿ޵ᇩԕ৺䀓ߣަԆ⴨ޣ㕪䲧DŽ↔ཆˈᮠᆇമۿ≤ঠⲴ᥁ᡈѻаᱟᨀ׋ᴤᴹ᭸Ⲵ䇔䇱ᯩᔿˈԕ⺞؍нਟ੖䇔ᙗDŽ൘ᵜ䇪᮷ѝˈᨀࠪҶਟᴯԓⲴᮠᆇമۿ࣐ᇶᯩ⌅ˈ䈕ᯩ⌅ਟԕᨀ儈䙏ᓖᒦфᣥᣇ਴⿽ᖒᔿⲴ᭫ࠫˈᒦфᨀࠪҶ࣐ᇶ઼≤ঠᢰᵟӂ㺕ᙗⲴᯩṸDŽ俆ᨀࠪҶа⿽൘⚠ᓖമۿѝสҾ␧⊼ᑀ㈧മ઼DNA㕆⸱Ⲵ࣐ᇶ㇇⌅DŽ俆ˈ䗃ޕањ16ᆇㅖⲴASCIIᆇㅖѢ⭘Ҿሬࠪᑀ㈧ൠമⲴࡍ࿻ᶑԦˈ⭘Ҿ⭏ᡀޣ䭞മۿ⸙䱥Ⲵ␧⊼

7、ᇶ䫕⍱DŽնᱟˈⴤ᧕ሶᇶ䫕ᓄ⭘ҾᲞ䙊മۿᒦнᆹޘDŽഐ↔ˈሶޣ䭞⸙䱥઼Პ䙊മۿ⸙䱥㕆⸱ᡀDNAᒿࡇˈ❦ਾ൘ᆳԜѻ䰤䘋㹼DNAԓᮠ䘀㇇ˈ俆൘㹼ส⹰кˈ❦ਾ൘ࡇส⹰кDŽᴰਾⲴ㔃᷌㻛䈁⸱ԕӗ⭏ᇶ⸱മۿDŽDNA㕆⸱㿴ࡉ઼ԓᮠ䘀㇇䜭ᱟ⭘䙫䗁᱐ۿ䲿ᵪ䘹ᤙⲴDŽสҾㅜа⿽㇇⌅Ⲵ㔃᷌ˈ䇔䇶ࡠ䙊䗷ᰐ㕍ൠ㓴ਸḀӋᢰᵟԕᨀ儈࣐ᇶ䙏ᓖ઼ᇶ⸱ѝⲴ㔏䇑⢩ᙗˈਟԕӵ⭘а䖞ቡᇎ⧠励ἂᙗⲴ᭩䘋DŽഐ↔ˈᨀࠪҶа⿽สҾ䲿ᵪ໎ᕪLogistic᱐ሴˈণ䲿ᵪ㖞ᦒ઼DNAⲴമۿᇶ⸱㌫㔏DŽSHA-256૸ᐼ٬⭘Ҿሬࠪ␧⊼᱐ሴⲴࡍ࿻ᶑԦ઼᧗ࡦ৲ᮠˈ❦ਾ⭘

8、ᆳᶕ⭏ᡀ࣐ᇶᇶ䫕DŽ䈕ᯩṸ⭡єњѫ㾱䱦⇥㓴ᡀ˖㖞ᦒ઼ᢙᮓDŽ俆䘋㹼䲿ᵪۿ㍐㖞ᦒԕᨀ儈㔏䇑ᙗ㜭DŽ᧕лᶕӵ൘㹼Ⲵส⹰к䘋㹼DNAᢙᮓԕӗ⭏ᇶ⸱മۿDŽDNA㿴ࡉ઼ԓᮠ䘀㇇ҏ䜭ᱟ⭘ⴤ᧕䙫䗁᱐ۿ䲿ᵪ䘹ᤙⲴDŽѪҶ䘋а↕ᨀ儈䙏ᓖˈ਼ᰦ؍ᤱᡆᨀ儈ڕ༞ᙗˈ⎸䲔ҶDNA㕆⸱DŽᨀࠪҶа⿽สҾᢙᮓ઼ᧂࡇⲴㆰঅ儈᭸Ⲵᮠᆇമۿ࣐ᇶ㇇⌅DŽ൘䈕㇇⌅ѝˈєњ␧⊼㌫㔏⭘Ҿ࣐ᇶᇶ䫕⭏ᡀˈަѝањ␧⊼㌫㔏⭡16њ⭘ᡧᇊѹⲴASCIIᆇㅖѢ傡ࣘˈਖањ⭡SHA-256૸ᐼ٬ᶕ傡ࣘDŽ䟷⭘о䲿ᵪ㖞ᦒ࠭ᮠ