标签: ibuttons

Abstract:Thisapplicationnotediscussesthe1-Wire®FileStructure(OWFS).TheOWFSprovidesadirectorystructurefordataresidingin1-WiredevicesincludingiButtons.Itallowsnamedfilestoberandomlyaccessedastheyareonotherfilesystems.Thisdocumentprovidesthefullspecificationincludingbitmapfilesforlargecapacity1-Wiredevices,multiplesubdirectories,extendedfileattributes,andotherusefulconstructssuchasfilesspanningmultipledevices.1-WireFileStructureJul11,2001Abstract:Thisapplicationnotediscussesthe1-WireFileStructure(OWFS).TheOWFSprovidesadirectorystructurefordataresidingin1-WiredevicesincludingiButtons.Itallowsnamedfilestoberandomlyaccessedastheyareonotherfilesystems.Thisdocumentprovidesthefullspecificationincludingbitmapfilesforlargecapacity1-Wiredevices,multiplesubdirectories,extendedfileattributes,andotherusefulconstructssuchasfilesspanningmultipledevices.I.1-WireFileStructureThe1-WireFileStructure(OWFS)providesadirectorystructurefordataresidingin1-WiredevicesincludingiButtons.Itallowsnamedfilestoberandomlyaccessedastheyareonotherfilesystems.Thisdocumentprovidesthefullspecificationincludingbitma……

Abstract:AnIP-basednetworkedsensormonitorcaneasilybecreatedthroughthecombinationoftheTinyInternetInterfaces(MxTNI™)platform,1-Wire®sensors,andtheappropriateJava™software.TheMxTNIplatformprovidestheTCP/IPnetworkstackandthelocalcontrolcapabilitiesrequiredtodesignIP-based,networkedsensors.TheincludedJavaruntimeenvironmentandthe1-Wireperipheralinterfacelibrary,allowforeasycontrolandcommunicationsusing1-Wiredevices.ThisapplicationnotedemonstratesanIP-basednetworkedtemperaturemonitor,withadownloadableappletcontrolinterfacethatexecutesinJavaenabledbrowsers.ItutilizesaMxTNIVerificationModuleandaDS1920iButton®orDS18201-Wiretemperaturesensor.Theappletcontrolsthesensoranddisplaysthetimeandtemperaturesamplestaken.TheappletisautomaticallydownloadedbybrowsingtotheIPaddressoftheMxTNI,andisservedusingtheMxTNIRuntimeEnvironment.Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>1-WireDevices>APP198Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>Microcontrollers>APP198Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>TemperatureSensorsandThermalManagement>APP198Keywords:MxTNI,DSTINI-1,TCP/IP,Java,1-Wire,iButton,iButtons,internet,webbrowser,sensor,sensors,1-Wiresensors,thermostat,temperaturerecorder,datalogger,IPaddress,1wireJul22,2002APPLICATIONNOTE198NetworkedTemperatureMonitoringJul22,2002Abstract:AnIP-basednetworkedsensormonitorcaneasilybecreatedthroughthecombinationoft……

Abstract:Thisdocumentwillcoveramethodologyforextendingthe1-Wirerangetoalimitofnearinfinityusingproxies.Thebestanalogytodescribethebasicproxyistoimaginetheproxyserverinmostcompanies(sometimesreferredtoasthecompanyfirewall).Inthissetup,onlyonecomputer(theproxy)hasanactualconnectiontotheInternetandtherestoftheusermachinesonlyhaveaccesstotheproxy.AllnetworkpacketsontheLANthatareintendedforcomputersoutsidetheLANarerepeatedontheWANandvice-versa.Thisideaistransferableto1-Wirenetworks.Connectingtoa1-Wirenetworkthroughaproxyrequiresacoupleofsoftwaremodules:theclientmoduleandthehostmodule.Thehostmoduleisthecodethatrunsonthe1-WireProxyServer(aPC,MxTNI™,ormicrocontroller)thathashardwareaccesstothe1-Wirenetwork.Theclientmoduleisthecodethatrunsonthedistantmachinesthathaveonlynetworkaccesstoreachthehostmodule.Itispossiblethatthehostmodule,ratherthanhavinghardwareaccesstothe1-Wirenetwork,couldhaveaccesstoaclientmodule,whichwouldrefertoyetanotherhostmodule.Inthiswayitispossibletochaintogethertheproxyforreachingthe1-Wirenetwork.Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>1-WireDevices>APP193Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>Microcontrollers>APP193Keywords:1-Wire,iButton,proxy,proxies,1-wireproxyhost,1-wireclient,1wire,ibuttonsMar28,2002APPLICATIONNOTE193Extending1-WireRangewithNetworkProxiesMar28,2002Abstract:Thisdocumentwillcoveramethodologyforextendingthe1-Wirerangetoalimitofnearinfinityusingproxies.Thebestanalogytodescribethebasicproxyistoimaginetheproxyserverinmostcompanies(sometimesreferredtoasthecompanyfirewall).Inthissetup,onlyonecomputer(th……

Abstract:Thisapplicationnotepresentstheelectricalaspectofthe1-Wireprotocolfornewandlegacydevices.Aspecialsectionexplainshowtodetermineappropriatetimingparametersforanetworkcomprisedofbotholdandnew1-Wireslaves.The1-WireMasterConceptssectionprovidesreferencestootherdocumentsthatdiscuss1-Wiremastersindetailandtotherelatedsoftware.Maxim>DesignSupport>AppNotes>1-WireDevices>APP74Maxim>DesignSupport>AppNotes>iButton>APP74Maxim>DesignSupport>AppNotes>UARTs>APP74Keywords:1-Wire,OneWire,iButton,iButtons,serialport,serialcommunication,uart,8253,8250,1wireJun26,2009APPLICATIONNOTE74ReadingandWriting1-WireDevicesThroughSerialInterfacesBy:BernhardLinke,PrincipalMemberTechnicalStaffAbstract:Thisapplicationnotepresentstheelectricalaspectofthe1-Wireprotocolfornewandlegacydevices.Aspecialsectionexplainshowtodetermineappropriatetimingparametersforanetworkcomprisedofbotholdandnew1-Wireslaves.The1-Wi……

Abstract:ThisapplicationnotedescribestechniquesthatcanbeusedinsystemsusingMaximSHAiButtons®asnetworkuserauthenticationtokens.ThesetechniquesareusedtobinduserpasswordsintotheSHA-basedauthenticationscheme.ThereadershouldbefamiliarwiththestandardMaximSHAiButtonauthenticationdevicesandmethods.Seeapplicationnote1201,"1-Wire®SHA-1Overview,"formoreinformationandgeneralapplicationsinformation.Maxim>AppNotes>1-WireDevicesKeywords:authentication,user,network,password,passwords,SHA,iButton,iButtons,SHA-1,DS1963S,Feb22,2002DS1961S,DS2432APPLICATIONNOTE154PasswordsinSHAAuthenticationAbstract:ThisapplicationnotedescribestechniquesthatcanbeusedinsystemsusingMaximSHAiButtonsasnetworkuserauthenticationtokens.ThesetechniquesareusedtobinduserpasswordsintotheSHA-basedauthenticationscheme.ThereadershouldbefamiliarwiththestandardMaximSHAiButtonauthenticationdevicesandmethods.Seeapplicationnote1201,"1-WireSHA-1Overview,"formoreinformationandgeneralapplicationsinformation.IntroductionTheMaxim1-WireSHAdevicesprovideahighlysecurewaytobesurethatauseriButtontokenisauthentic.Howe……

关键词:1-wire,iButton,ibuttons,SHA-1,安全散列算法,加密系统,MAC,安全,质询响应,置信令牌,电子钱包,安全通信,签名加密,认证加密,写页计数器,签名,e-cash,ec1-WireSHA-1概述Jul20,2004摘要：讨论数据安全性时常常比较关注加密方式，而更有说服力、更有价值的方法则是认证。本文介绍了一种直接针对硬件、数据和用户的认证技术，本文对采用该项技术的1-Wire安全散列算法1(SHA-1)器件进行了概要描述，并在文章的最后还给出了其他资料、工具包、实例作为参考，以方便后续的研究和开发。简介安全性是所有数字领域都普遍考虑的一个问题。当大家讨论数据安全性时通常关注的是加密方式，而更有说服力、更有价值的方法则是认证。由于所有的信息和通信都可归结为1和0，因此合法性和认证便成为问题关键所在。本文介绍了一种直接针对硬件、数据和用户的认证技术，本文对采用该项技术的1-Wire安全散列算法1(SHA-1：SecureHashAlgorithm1)器件进行了概要描述，并在文章的最后还给出了大量的其他类型的文件、工具包、实例作为参考，以方便后续的研究和开发(专用术语、命令和代码将用斜体字表示，常用术语请参考应用笔记1099：“WhitePaper4:Glossaryof1-WireSHA-1Terms”。)散列散列是信息的提炼，通常其长度要比信息小得多，且为一个固定长度。加密性强的散列一定是不可逆的，这就意味着通过散列结果，无法推出任何部分的原始信息。任何输入信息的变化，哪怕仅一位，都将导致散列结果的明显变化。，这称之为雪崩效应。散列还应该是防冲突的，即找不出具有相同散列结果的两条信息。具有这些特性的散列结果就可以用于验证信息是否被修改。MACMAC(信息认证代码)就是一个散列结果，其中部分输入信息是密码，只有知道这个密码的参与者才能再次计算和验证MAC码的合法性。MAC的产生参见图1。图1.MAC的产生通过这种方法，系统的参与……

Abstract:TheiButton®canbeeasilyusedasacredentialforidentification,accesscontrol,andeCashapplications.SeveraliButtonfobsareavailablethatmakesusingiButtonsextremelyeasy.Thisapplicationnotehowever,dealswithusingcardsorbadgeswiththeiButton.TherearethreeapproachestomakinganiButtonIDbadge:1)usingtheDS9606Padhesivepads,2)usingtheDS9093RAlockringasastainless-steelfastenerwithapre-punchedhole,and3)usingtheDS9101multipurposeclipthatmountsaniButtontoaplasticbadge.ApplicationNote204iButtonIDBadgeMountingOptionswww.maxim-ic.comTheiButtonistheprefectcredentialforIdentification,AccessControl,andeCashapplications.WehavedesignedseveraliButtonfobsthatmakesusingiButtonsextremelyeasy.However,forthosewhopreferusingcardsorbadgeswehavedevelopedafewsolutionsforyouaswell.TherearethreeapproachestomakinganiButtonIDbadge:1)DS9606P―AdhesivePads2)DS9093RA―LockWasherandDS9093RBFlangeEnlargement3)DS9101―MultipurposeClipUsingtheDS9606PAdhesivePadsAttach……

摘要：本应用笔记主要介绍了iButton®。讨论了iButton的基本知识：定义、构成及部分应用。本文阐述了系统如何通过其1-Wire®接口与iButton进行通信。还论述了iButton的类型、iButton的坚固性、保证唯一的64位序列号，以及可提供的iButton附件。什么是iButton?BrianHindman,高级软件开发工程师Oct05,2006摘要：本应用笔记主要介绍了iButton。讨论了iButton的基本知识：定义、构成及部分应用。本文阐述了系统如何通过其1-Wire接口与iButton进行通信。还论述了iButton的类型、iButton的坚固性、保证唯一的64位序列号，以及可提供的iButton附件。引言iButton是一个封装在16mm厚的不锈钢外壳内的计算机芯片。由于其采用独特的坚固外壳，可以将最新信息随人或目标物体携带到任何地方。实际上由于钢制的iButton外壳足够坚固，可承受室内或室外的各种苛刻环境，使得iButton几乎可以安装在任何地方。iButton十分的小巧轻便，可以附着在钥匙链、戒指环、手表或其他个人物品上，非常适合在日常生活中控制诸如建筑物及计算机、资产管理以及各种数据记录的访问权限。iButton的组成外壳和金属扣环iButton利用其不锈钢‘外壳’作为电子通信接口，每个外壳都具有一个数据触点，称作“盒盖”，以及一个接地触点，称作“盒底”。这些触点都被连接至内部硅片。盒盖是外壳的顶部；盒底则由外壳的边缘和底部组成，包括一个便于按钮附着在其他任何物件的凸缘。这两个触点由聚丙烯扣环隔离。1-Wire接口……