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1、本科毕业论文（设计）设计题目：Linux下3DES加密算法的实现学院：＿计算机科学与信息学院＿专业：＿＿＿信息安全＿＿＿＿班级：＿＿＿信息081＿＿＿学号：＿＿080806110211学生姓名：＿＿＿＿杨彪＿＿＿指导教师：＿＿＿余珮嘉＿＿＿2012年6月04日贵州大学本科毕业论文（设计）诚信责任书Thegeneralstaff(1employeesinadditiontovicepresident,director,manager,deputymanagerandspecialpositionso
2、utsidethecontractperiod)toresign,togive10daysnotice,theprojectmanagerordepartmentmanager,administrativepersonneldepartmentorrelevantresponsiblepersonfortherelevantvisaafterdepartureprocedures;inadditiontogeneralstaffpersonneloutsidethecontractperiodof
3、turnovermustsubmittheresignationreport,amonthaheadofschedule,theadministrativepersonneldepartment,generalmanagerofvisabeforeseparationprocedures;probationemployeesshallpayinadvance5resignationreport,theprojectmanagerordepartmentmanagerandadministrativ
4、epersonneldepartmentvisabeforedeparture;positiveafterspecialreasonsdidnotsignacontractwithreferencetogeneralemployeesThroughthestaff本人郑重声明：本人所呈交的毕业论文（设计），是在导师的指导下独立进行研究所完成。毕业论文（设计）中凡引用他人已经发表或未发表的成果、数据、观点等，均已明确注明出处。特此声明。论文（设计）作者签名：日期：Thegeneralstaff(1e
5、mployeesinadditiontovicepresident,director,manager,deputymanagerandspecialpositionsoutsidethecontractperiod)toresign,togive10daysnotice,theprojectmanagerordepartmentmanager,administrativepersonneldepartmentorrelevantresponsiblepersonfortherelevantvisa
6、afterdepartureprocedures;inadditiontogeneralstaffpersonneloutsidethecontractperiodofturnovermustsubmittheresignationreport,amonthaheadofschedule,theadministrativepersonneldepartment,generalmanagerofvisabeforeseparationprocedures;probationemployeesshal
7、lpayinadvance5resignationreport,theprojectmanagerordepartmentmanagerandadministrativepersonneldepartmentvisabeforedeparture;positiveafterspecialreasonsdidnotsignacontractwithreferencetogeneralemployeesThroughthestaff贵州大学本科毕业论文（设计）第45页目录AbstractIII第一章前
8、言11.1课题背景11.2DES、3DES加密算法简介21.3课题研究的目的和意义21.3.1研究的目的21.3.2研究的意义2第二章DES加密的详细描述42.1DES加密的计算部件及其过程42.1.1密钥的计算42.1.2初始置换IP52.1.3初始置换的逆IP-162.1.4F函数运算的原理72.1.5DES加密的原理102.2DES解密的过程132.2.1DES解密的原理132.2.2DES解密的过程13第三章3DES加密原理153.1.13DES加密算法简介153.2.13
