ISO/IEC 9797-2-2002 信息技术.安全技术.电文鉴别代码(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.电文鉴别代码(MACS).第2部分:专用散列函数的机械结构
【标准号】:ISO/IEC9797-2-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-06
【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
【标准类型】:()
【标准水平】:()
【中文主题词】:机械;数据传输;数据交换;数据传送;网络互连;多路存取计算机;代码;文电;定义;定义;校验;安全;信息交换;电信;数据处理;正文通信;算法;信息技术
【英文主题词】:Algorithms;Authentication;Codes;Dataexchange;Dataprocessing;Datatransfer;Datatransmission;Definition;Definitions;Hash-functions;Informationinterchange;Informationtechnology;MAC;Mechanism;Messages;Networkinterconnection;Safety;Telecommunication;Textcommunication
【摘要】:ThispartofISO/IEC9797specifiesthreeMACalgo-rithmsthatuseasecretkeyandahash-function(oritsround-function)withann-bitresulttocalculateanm-bitMAC.Thesemechanismscanbeusedasdataintegritymechanismstoverifythatdatahasnotbeenalteredinanunauthorisedmanner.Theycanalsobeusedasmessageauthenticationmechanismstoprovideassurancethatamessagehasbeenoriginatedbyanen-tityinpossessionofthesecretkey.Thestrengthofthedataintegritymechanismandmessageauthenticationmechanismisdependentonthelength(inbits)kandsecrecyofthekey,onthelength(inbits)nofahash-codeproducedbythehash-function,onthestrengthofthehash-function,onthelength(inbits)moftheMAC,andonthespecificmechanism.ThethreemechanismsspecifiedinthispartofISO/IEC9797arebasedonthededicatedhash-functionsspecifiedinISO/IEC10118-3.Thefirstmech-anismspecifiedinthispartofISO/IEC9797iscom-monlyknownasMDx-MAC.Itcallsthecompletehash-functiononce,butitmakesasmallmodificationtotheround-functionbyaddingakeytotheadditiveconstantsintheround-function.ThesecondmechanismspecifiedinthispartofISO/IEC9797iscommonlyknownasHMAC.Itcallsthecompletehash-functiontwice.ThethirdmechanismspecifiedinthispartofISO/IEC9797isavariantofMDx-MACthattakesasinputonlyshortstrings(atmost256bits).Itoffersahigherperformanceforapplicationsthatworkwithshortinputstringsonly.ThispartofISO/IEC9797canbeappliedtothese-curityservicesofanysecurityarchitecture,process,orapplication.
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:14P;A4
【正文语种】:英语
【原文标准名称】:信息技术.安全技术.电文鉴别代码(MACS).第2部分:专用散列函数的机械结构
【标准号】:ISO/IEC9797-2-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-06
【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
【标准类型】:()
【标准水平】:()
【中文主题词】:机械;数据传输;数据交换;数据传送;网络互连;多路存取计算机;代码;文电;定义;定义;校验;安全;信息交换;电信;数据处理;正文通信;算法;信息技术
【英文主题词】:Algorithms;Authentication;Codes;Dataexchange;Dataprocessing;Datatransfer;Datatransmission;Definition;Definitions;Hash-functions;Informationinterchange;Informationtechnology;MAC;Mechanism;Messages;Networkinterconnection;Safety;Telecommunication;Textcommunication
【摘要】:ThispartofISO/IEC9797specifiesthreeMACalgo-rithmsthatuseasecretkeyandahash-function(oritsround-function)withann-bitresulttocalculateanm-bitMAC.Thesemechanismscanbeusedasdataintegritymechanismstoverifythatdatahasnotbeenalteredinanunauthorisedmanner.Theycanalsobeusedasmessageauthenticationmechanismstoprovideassurancethatamessagehasbeenoriginatedbyanen-tityinpossessionofthesecretkey.Thestrengthofthedataintegritymechanismandmessageauthenticationmechanismisdependentonthelength(inbits)kandsecrecyofthekey,onthelength(inbits)nofahash-codeproducedbythehash-function,onthestrengthofthehash-function,onthelength(inbits)moftheMAC,andonthespecificmechanism.ThethreemechanismsspecifiedinthispartofISO/IEC9797arebasedonthededicatedhash-functionsspecifiedinISO/IEC10118-3.Thefirstmech-anismspecifiedinthispartofISO/IEC9797iscom-monlyknownasMDx-MAC.Itcallsthecompletehash-functiononce,butitmakesasmallmodificationtotheround-functionbyaddingakeytotheadditiveconstantsintheround-function.ThesecondmechanismspecifiedinthispartofISO/IEC9797iscommonlyknownasHMAC.Itcallsthecompletehash-functiontwice.ThethirdmechanismspecifiedinthispartofISO/IEC9797isavariantofMDx-MACthattakesasinputonlyshortstrings(atmost256bits).Itoffersahigherperformanceforapplicationsthatworkwithshortinputstringsonly.ThispartofISO/IEC9797canbeappliedtothese-curityservicesofanysecurityarchitecture,process,orapplication.
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:14P;A4
【正文语种】:英语
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