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1、正式打印时，将此删除本科毕业设计i号,黑体。题R必须二选一：要么是毕业设计，要么是毕业论（本科毕业论文）外文文献及译文yNewRoman文献、资料题目:AdvancedEncryptionStandard文献、资料来源：期刊（著作、网络等怎称驚字文献、资料发表（出版）日期：2010325I下同—姓名：垦二学号：2001888888指导教师：黄伟典翻译日期：2012.6.11外文文献:TimesNewRoman,小4号，1.5倍行距JyAdvancedEncryptionStandardpastthreeyears,theNationalInstituteofSta

2、ndardsandTechnology(NIST)hasbeenworkingtodevelopanewencryptionstandardtokeepgovernmentinformationsecure.Theorganizationisinthefinalstagesofanopenprocessofselectingoneormorealgorithms,ordata-scramblingformulas,forthenewAdvancedEncryptionStandard(AES)andplanstomakeadecisionbylatesummero

3、rearlyfall.Thestandardisslatedtogointoeffectnextyear.AESisintendedtobeastronger,moreefficientsuccessortoTripleDataEncryptionStandard(3DES),whichreplacedtheagingDES,whichwascrackedinlessthanthreedaysinJuly1998.“UntilwehavetheAES,3DESwillstillofferprotectionforyearstocome.Sothereisnonee

4、dtoimmediatelyswitchover,saysEdwardRoback,actingchiefofthecomputersecuritydivisionatNISTandchairmanoftheAESselectioncommittee."WhatAESwillofferisamoreefficientalgorithm•Itwillbeafederalstandard,butitwillbewidelyimplementedintheITcommunity."AccordingtoRoback,efficiencyoftheproposedalgo

5、rithmsismeasuredbyhowfasttheycanencryptanddecryptinformation^howfasttheycanpresentanencryptionkeyandhowmuchinformationtheycanencrypt.TheAESreviewcommitteeisalsolookingathowmuchspacethealgorithmtakesuponachipandhowmuchmemoryitrequires.RobacksaystheselectionofamoreefficientAESwillalsore

6、sultincostsavingsandbetteruseofresources.“DESwasdesignedforhardwareimplementations,andwearenowlivinginaworldofmuchmoreefficientsoftware，andwehavelearnedanawfullotaboutthedesignofalgorithms,"saysRoback."Whenyoustartmultiplyingthiswiththebillionsofimplementationsdonedaily,thesavingonove

7、rheadonthenetworkswillbeenormous.中文译文:黑体，小3号，1.5倍行距宋体，小4号，1.5倍行距先进加密标准黑体,小3号,居中，1.5倍行距在过去三年中，（美国）国家标准与技术局（NIST）已在研究开发一种新的加密标准,以确保政府的信息安全。该组织目前正处于为新的先进加密标准（AES）选择一个或几个算法或数据打乱公式的开放过程的最后阶段，并计划在夏末或秋初作出决定。此标准内定明年实施。AES预定为比三层数据加密标准（3DES）更强、更高效的后续标准，3DES替代了老化的DES加密标准，DES在1998年7刀在不到三天的时间内就被破译

8、了。N1S