标签: keeloq

KEELOQ滚动加密技术在汽车防盗系统中的应用

一种基于KEELOQ的改进加密算法及其在单片机中的实现

KEELOQ滚动码编-解码芯片介绍

ThisapplicationnotefullydescribestheworkingofacodehoppingdecoderimplementedonaMicrochipPIC16C56microcontroller.Thisdecoderusesthesecurelearn(seed-based)methodoflearningnewtransmitters.Thisapplicationnotedescribesthevari-ousKEELOQ®codehoppingencodersthatcanbeusedwiththedecoder,thedecoderhardware,andthevari-oussoftwaremodulescomprisingthesystem.Thesoft-warecanbeusedtoimplementastandalonedecoderorintegratewithfullfunctionsecuritysystems.ThedecodersupportstheMicrochipHCS200,HCS300,HCS301,HCS360,HCS361andHCS410KEELOQCodeHoppingEncoders.AN662KEELOQCodeHoppingDecoderUsingSecureLearnAuthor:StevenDawsonKEYFEATURESMicrochipTechnologyInc.StandalonedecoderOVERVIEWCompatiblewithMicrochipHCS200,HCS300,HCS301,HCS360HCS361andHCS410ThisapplicationnotefullydescribestheworkingofaencoderscodehoppingdecoderimplementedonaMicrochipAutomaticbitratedetectionPIC16C56microcontroller.ThisdecoderusestheAutomaticencodertypedetectionsecurelearn(seed-based)methodoflearningnewFourfunc……

ThisapplicationnotefullydescribestheworkingofacodehoppingdecoderimplementedonaMicrochipPIC16C54microcontroller.ThePIC16C54issmallerthanthePIC16C56usedinthenormaldecoder(AN642)orthesecurelearndecoder(AN652).Asim-plifiedlearningschemewithallencoderssharingacommonkeyandasimplifiedcountersynchronizationschemehasbeenusedtoreducethecodespacerequirements.Theuseofacommonkeyreducesthesecurityofthesystem.Thesimpledecodercanlearnupto15encoders.ThisapplicationnotedescribesthevariousKEELOQ®codehoppingencodersthatcanbeusedwiththedecoder,thedecoderhardware,andthevarioussoftwaremodulescomprisingthesystem.Thesoftwarecanbeusedtoimplementastandalonedecoderorintegratedwithfullfunctionsecuritysys-tems.ThedecodersupportstheMicrochipHCS200,HCS300,HCS301,HCS360,HCS361andHCS410KEELOQCodeHoppingEncoders.AN663KEELOQSimpleCodeHoppingDecoderAuthor:StevenDawsonKEYFEATURESMicrochipTechnologyInc.PIC16C54OVERVIEWStandalonedecoderCompatiblewithMicrochipHCS200,HCS300,ThisapplicationnotefullydescribestheworkingofaHCS301,HCS360,HCS361andHCS410codehoppingdecoderimplementedonaMicrochipencodersPIC16C54microcontroller.ThePIC16C54issmallerAutomaticbitratedetectionthanthePIC16C56usedinthenormaldecoderAutomaticencodertypedetection(AN642)……

ThesoftwareonthediskprovidedisWindows-basedsoftware.TheKEELOQsoftwarecanbeinstalledinthedefaultdirectoryC:\HCS_EVALorinanotherdirectory.KEELOQEVALUATIONKITUSER’SGUIDEInformationcontainedinthispublicationregardingdeviceapplicationsandthelikeisintendedbywayofsuggestiononly.NorepresentationorwarrantyisgivenandnoliabilityisassumedbyMicrochipTechnologyIncorporatedwithrespecttotheaccuracyoruseofsuchinformation.UseofMicrochip’sproductsascriticalcomponentsinlifesupportsystemsisnotauthorizedexceptwithexpresswrittenapprovalbyMicrochip.2000MicrochipTechnologyIncorporated.Allrightsreserved.TheMicrochiplogo,name,PIC,PICMASTER,PICSTART,PROMATE,KEELOQ,andPICmicroareregisteredtrademarksofMicrochipTechnologyIncorporatedintheU.S.A.andothercountries.microID,MPLAB,andSmartSerialaretrademar……

TheKEELOQ®EvaluationKitIIprovidestheopportunitytoevaluateKEELOQCodeHoppingTechnologyquicklyandeasilywithouthavingtomakealargecapitalinvestment.Theevaluationkitcontainsallthehard-wareandsoftwarenecessarytoimplementafullyfunc-tionalremotecontrolsystemanddemonstratealloperatingmodesofthefollowingdevices:•HCS101,HCS200,HCS201,HCS300,HCS301,HCS320,HCS360,HCS361,HCS362,HCS365andHCS370encoders•SIMPLE(AN663/AN659),NORMAL(AN661/AN642),SECURE(AN662/AN652)SoftwareDecodersandrelatedApplicationNotes•HCS500(8-pin),HCS512(18-pin)andHCS515(14-pin)DecodersThekitcanalsobeusedtoprogramanddemonstratetheEncoderfunctionalityoftheHCS410,HCS412andHCS473transponders(trans-coders).TheincludedWindows-basedsoftwarecanbeusedtoprogramthedemonstrationtransmittersandtheDIPsamplesprovidedinthesamplekit.Encryptionkeys,configurationinformationandotheruserselectableinformationareautomaticallyprogrammedintotheencoder’sEEPROM.Althoughmanyinterdependentparametersmustbetakenintoaccountwhenprogram-mingtheencoderanddecodercombination,thepro-cessisautomatedandtransparenttotheuser.MKEELOQEVALUATIONKITIIUser’sGuideINCLUDES:AbouttheKEELOQEvaluationKitIIInstallingKEELOQEvaluationKitIIEvaluationKitIIGUISoftwareMonitoringKEELOQTransmissionsKEELOQEncodersDemonstratingTransmittersTheMainBoardAppendixA:SchematicDiagramsAppendixB:In-CircuitP……

KEELOQ3开发工具包用户指南KEELOQ3开发工具包用户指南2009MicrochipTechnologyInc.DS41378A_CN请注意以下有关Microchip器件代码保护功能的要点：Microchip的产品均达到Microchip数据手册中所述的技术指标。Microchip确信：在正常使用的情况下，Microchip系列产品是当今市场上同类产品中最安全的产品之一。目前，仍存在着恶意、甚至是非法破坏代码保护功能的行为。就我们所知，所有这些行为都不是以Microchip数据手册中规定的操作规范来使用Microchip产品的。这样做的人极可能侵犯了知识产权。Microchip愿与那些注重代码完整性的客户合作。Microchip或任何其他半导体厂商均无法保证其代码的安全性。代码保护并不意味着我们保证产品是“牢不可破”的。代码保护功能处于持续发展中。Microchip承诺将不断改进产品的代码保护功能。任何试图破坏Microchip代码保护功能的行为均可视为违反了《数字器件千年版权法案（DigitalMillenniumCopyrightAct）》。如果这种行为导致他人在未经授权的情况下，能访问您的软件或其他受版权保护的成果，您有权依据该法案提起诉讼，从而制止这种行为。提供本文档的中文版本仅为了便于理解。请勿忽视文档中包含商标的英文部分，因为其中提供了有关Microchip产品性能和使用Microchi……