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SAE J104 Square and Hex Nuts

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Product Code:SAE J104
Title:Square and Hex Nuts
Issuing Committee:
Scope:Included herein are complete general and dimensional data for the various types of square and hex nuts recognized as SAE Standard and commonly used in automotive and other ground based motor vehicles and industrial equipment. Also included are appendixes covering wrench openings for nuts. The inclusion of dimensional data in this standard is not intended to imply that all of the products described are stock production sizes. Users are requested to consult with manufacturers concerning lists of stock production sizes.
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【英文标准名称】:InformationtechnologySecuritytechniquesEntityauthenticationPart2:MechanismsusingsymmetricenciphermentalgorithmsAdoptedbyINCITS
【原文标准名称】:信息技术.安全技术.实体认证.第2部分:被INCITS采用的利用对称加密算法的机制
【标准号】:ANSIISO/IEC9798-2-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999-07-15
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofISO/IEC9798specifiesentityauthenticationmechanismsusingsymmetricenciphermentalgorithms.Fourofthemechanismsprovideentityauthenticationbetweentwoentitieswherenotrustedthirdpartyisinvolved;twoofthesearemechanismstounilaterallyauthenticateoneentitytoanother,whiletheothertwoaremechanismsformutualauthenticationoftwoentities.Theremainingmechanismsrequireatrustedthirdpartyfortheestablishmentofacommonsecretkey,andrealizemutualorunilateralentityauthentication.ThemechanismsspecifiedinthispartofISO/IEC9798usetimevariantparameterssuchastimestamps,sequencenumbers,orrandomnumbers,topreventvalidauthenticationinformationfrombeingacceptedatalatertimeormorethanonce.Ifnotrustedthirdpartyisinvolvedandatimestamporsequencenumberisused,onepassisneededforunilateralauthentication,whiletwopassesareneededtoachievemutualauthentication.Ifnotrustedthirdpartyisinvolvedandachallengeandresponsemethodemployingrandomnumbersisused,twopassesareneededforunilateralauthentication,whilethreepassesarerequiredtoachievemutualauthentication.Ifatrustedthirdpartyisinvolved,anyadditionalcommunicationbetweenanentityandthetrustedthirdpartyrequirestwoextrapassesinthecommunicationexchange.Singlecopyprice:$42.00Obtainanelectroniccopyfrom:http://webstore.ansi.org/ansidocstore/find.asp?Orderfrom:ANSISendcomments(withcopytoBSR)to:BarbaraBennett,NCITS,bbennett@itic.org
【中国标准分类号】:L80
【国际标准分类号】:35_040
【页数】:
【正文语种】:英语