武漢證券公司數(shù)據(jù)庫的加密安全技術與實施方案.pdf

1、分類號學校代碼學號密級孝卞斜技大浮碩士學位論文武漢證券公司數(shù)據(jù)庫的加密安全技術與實施方案學位申請人：學科專業(yè)：指導教師：答辯日期：林濤計算機技術崔國華教授2005年11月3日華中科技大學碩士學位論文AbstractBasedontheDatabaseofWuhanSecuritiesCo，Ltd，thispaperfocusoninformationsecurity，researchingandexploringfortheimplem

2、entofmemorysecuritytechniqueofdataindatabaseanddiscusseshowtoselectthesetechniquesuchascipherindextreeofcipherdatabaseencryptionmethodsetc，itwillgiveagoodreferencefordatabaseinformationsystemWebringoutaBtreestructurebeca

3、usetraditionalbitreefailstoachievetheobjectivitysuchasbalancedstructure，highefficiencyandsequentialqueryingTheBtreestructurehassolvedtheproblemssuchasbalancedstructureandsequentialqueryingetcHowever，Inordertoimprovesyste

4、mefficiency，webringforwardanewB“treeapproachwithdatecompresstechnique，whichnotonlykeepsthemeritsofBtree，butalsoimprovesthequeryefficiencycertainlyInadditionmathematicanalysisofB“treeparameters，suchasmandn，aregiventoacqui

5、rethebestperformanceofB8treeByanalyzingalignmentcipher，blockcipherandPKE，DEAofDESencryptionisbecomeastheencryptionalgorithmofcipherquerySothealgorithmisrelativelysimpleanditseffectsonqueryeffidencycandroptothedegreewhich

6、usercanacceptInordertoguaranteethesecurityofthekeyitselfakeymanagementprogrammeisdesignedfortheactualconditionsoftheprojectTheprogrammerealizeskeysecurityprotectionBasedonaboveworkingthealgorithmaboutcipherindexoperation