ISO/IEC 9797-2-2011 信息技术.安全技术.消息认证代码(MACS).第2部分:专用散列函数的机械结构
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【英文标准名称】:Informationtechnology-Securitytechniques-MessageAuthenticationCodes(MACs)-Part2:Mechanismsusingadedicatedhash-function
【原文标准名称】:信息技术.安全技术.消息认证代码(MACS).第2部分:专用散列函数的机械结构
【标准号】:ISO/IEC9797-2-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-05-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC27
【标准类型】:()
【标准水平】:()
【中文主题词】:算法;校验;代码;数据交换;数据处理;数据传送;数据传输;定义(术语);散列函数;信息交换;信息技术;多路存取计算机;机械;文电;网络互连;安全性;通信;正文通信
【英文主题词】:Algorithms;Authentication;Codes;Dataexchange;Dataprocessing;Datatransfer;Datatransmission;Definitions;Hash-functions;Informationinterchange;Informationtechnology;MAC;Mechanism;Messages;Networkinterconnection;Safety;Telecommunication;Textcommunication
【摘要】:-ThispartofISO/IEC9797specifiesthreeMACalgorithmsthatuseasecretkeyandahash-function(oritsround-function)withann-bitresulttocalculateanm-bitMAC.Thesemechanismscanbeusedasdataintegritymechanismstoverifythatdatahasnotbeenalteredinanunauthorizedmanner.Theycanalsobeusedasmessageauthenticationmechanismstoprovideassurancethatamessagehasbeenoriginatedbyanentityinpossessionofthesecretkey.Thestrengthofthedataintegrityandmessageauthenticationmechanismsisdependentontheentropyandsecrecyofthekey,onthelength(inbits)nofahash-codeproducedbythehash-function,onthestrengthofthehash-function,onthelength(inbits)moftheMAC,andonthespecificmechanism.ThethreemechanismsspecifiedinthispartofISO/IEC9797arebasedonthededicatedhash-functionsspecifiedinISO/IEC10118-3.ThefirstmechanismiscommonlyknownasMDx-MAC.Itcallsthehashfunctiononce,butitmakesasmallmodificationtotheround-functioninthehash-functionbyaddingakeytotheadditiveconstantsintheround-function.ThesecondmechanismiscommonlyknownasHMAC.Itcallsthehash-functiontwice.ThethirdmechanismisavariantofMDx-MACthattakesasinputonlyshortstrings(atmost256bits).Itoffershigherperformanceforapplicationsthatworkwithshortinputdatastringsonly.ThispartofISO/IEC9797canbeappliedtothesecurityservicesofanysecurityarchitecture,process,orapplication.NOTEAgeneralframeworkfortheprovisionofintegrityservicesisspecifiedinISO/IEC10181-6[5].
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:46P.;A4
【正文语种】:英语
【原文标准名称】:信息技术.安全技术.消息认证代码(MACS).第2部分:专用散列函数的机械结构
【标准号】:ISO/IEC9797-2-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-05-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC27
【标准类型】:()
【标准水平】:()
【中文主题词】:算法;校验;代码;数据交换;数据处理;数据传送;数据传输;定义(术语);散列函数;信息交换;信息技术;多路存取计算机;机械;文电;网络互连;安全性;通信;正文通信
【英文主题词】:Algorithms;Authentication;Codes;Dataexchange;Dataprocessing;Datatransfer;Datatransmission;Definitions;Hash-functions;Informationinterchange;Informationtechnology;MAC;Mechanism;Messages;Networkinterconnection;Safety;Telecommunication;Textcommunication
【摘要】:-ThispartofISO/IEC9797specifiesthreeMACalgorithmsthatuseasecretkeyandahash-function(oritsround-function)withann-bitresulttocalculateanm-bitMAC.Thesemechanismscanbeusedasdataintegritymechanismstoverifythatdatahasnotbeenalteredinanunauthorizedmanner.Theycanalsobeusedasmessageauthenticationmechanismstoprovideassurancethatamessagehasbeenoriginatedbyanentityinpossessionofthesecretkey.Thestrengthofthedataintegrityandmessageauthenticationmechanismsisdependentontheentropyandsecrecyofthekey,onthelength(inbits)nofahash-codeproducedbythehash-function,onthestrengthofthehash-function,onthelength(inbits)moftheMAC,andonthespecificmechanism.ThethreemechanismsspecifiedinthispartofISO/IEC9797arebasedonthededicatedhash-functionsspecifiedinISO/IEC10118-3.ThefirstmechanismiscommonlyknownasMDx-MAC.Itcallsthehashfunctiononce,butitmakesasmallmodificationtotheround-functioninthehash-functionbyaddingakeytotheadditiveconstantsintheround-function.ThesecondmechanismiscommonlyknownasHMAC.Itcallsthehash-functiontwice.ThethirdmechanismisavariantofMDx-MACthattakesasinputonlyshortstrings(atmost256bits).Itoffershigherperformanceforapplicationsthatworkwithshortinputdatastringsonly.ThispartofISO/IEC9797canbeappliedtothesecurityservicesofanysecurityarchitecture,process,orapplication.NOTEAgeneralframeworkfortheprovisionofintegrityservicesisspecifiedinISO/IEC10181-6[5].
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:46P.;A4
【正文语种】:英语
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