CN100474360C - 防盗的个人识别码登录装置 - Google Patents
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- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
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Abstract
披露一种用于在现金交易机上输入密钥和为密码加密的防盗个人识别码(PIN)登录装置。所述PIN登录装置为电路部分的存储器提供电能，使得后盖的第一触杆和第二触杆连接键控扫描板的触点，其中第一触杆在键模块的后部上伸出，所述键模块包括基本设于其前部的按钮，所述后盖的第二触杆与所述键模块的后部连接。此时，如果所述后盖从所述键模块拆除或遭到破坏，从而改变了触点上的第一触杆和第二触杆中任意一个的位置，所述电路部分检测到这个事件并物理上毁坏存储器本身。另外，所述电路部分可在物理上或软件上使得存储在存储器中的信息不可读，从而防止信息泄漏。
Description
相关申请
本申请要求享有2004年11月12日提出申请的韩国专利No.2004-92464的优先权，在此引入所述专利的全部内容作为参考。
技术领域
本发明涉及用于在现金交易机上输入个人识别码(此后简称PIN)的装置。更具体地，本发明涉及保护PIN并在现金交易机(终端)中给用户的重要信息加密的PIN登录装置，本发明还涉及一种防盗的PIN登录装置，如果PIN登录装置被拆开以盗窃密码，所述装置能检测到这个事件，使得密码或关键数据不可读出，如果辅助键盘被部分切开，所述装置通过使切割失效而防止密码被盗。
背景技术
通常，防止他人因个人目的非法访问的金融终端这种设备，给予每个用户一个密码以认证金融交易。此外，如上述这种设备让用户在进行交易之前输入密码，只有当输入的密码被确认与预先登记的密码相同时才允许进行下一步操作。
如上所述，金融终端要求最高的安全性，用于为输入数据加密的加密机与键盘相结合用于输入密码。对于如上所述的这种加密机，广泛使用采用了DES(数据加密标准)算法的加密PIN键盘(pan module)模块。
所述DES PIN键盘模块是一种对用户的密码或密钥进行加密处理的模块。因此，所述DES PIN键盘模块包括用于输入密码的数字按钮、多个执行各种功能的选择按钮以及存储加密密钥的静态存取存储器(SRAM)。此时，SRAM包含在嵌入在所述设备内部的电路中，使得外部的随机操作无效。另一方面，数字按钮和选择按钮等暴露在用户易于操作的位置。
然而，如果具有不正当企图的用户将嵌在金融终端的所述DESPIN键盘模块拆除，并将分离的盗窃设备连到密钥输入单元，这就存在着可能仍在存储器上保留的密码有可能被泄漏的问题。
解决前述问题的原有技术是美国专利No.6,512,454，如果有第三方试图读取存储器的信息，所述美国专利涉及到销毁存储在存储器中信息的技术，以保持存储在电子设备中的信息。
为此，所述美国专利包括用于保护电子设备的外壳以及采用所述外壳的电子组件。
图1是显示传统PIN键盘模块的透视图。
简要说明涉及所述美国专利的技术配置，如图1所示，电子设备10装在第一和第二外罩20和30内，固定部件40(例如螺钉)穿过第一外罩20，使得外罩20和30相互连接在一起，所述固定部件还穿过电子设备10，使得其组成电路的一部分。
在正常状态下，按照所述美国专利的固定部件40使得电流稳定地通到电路部分。然而，当固定部件40的任一部分被入侵者等部分拆除时，在所述固定部件40中流通的电流被切断，检测器将检测到这个事件。
亦即，尽管所述美国专利涉及检测对于电子设备10的外部入侵的技术，但是显而易见，检测方法主要集中在象螺钉等这样的固定部件40上。此时，固定部件40应组成电路的一部分，而不是简单的固定装置，为了检测到入侵者的入侵要求螺钉40的分离或螺钉40的部分拆除。所述检测器应直接通过相关电路的控制检测这个事件。
然而，按照如所述美国专利这样的保护电子设备的传统技术，如果入侵者切开电子设备10的第一和第二外罩20和30的任意一个，而不接触到固定部件40，从而使得电流保持在正常状态，则电子设备10检测不到这种外部侵入。因此存在的问题是，存储在电子设备10的存储器中的信息可能通过盗窃设备泄漏。
此外，只有在例如螺钉这样的固定部件40完全从电子设备10上拆除时，才会阻止电流的流动并使检测器检测到这个事件。因此，如果入侵者只旋松和以预设的长度切断固定部件40，使得电子设备10的电流的流动保持原样，封装了电子设备10的第一和第二外罩20和30相互开放，从而由外罩20和30封装的电子设备10完全暴露。因此存在的问题是，入侵者可能通过盗窃设备从电子设备10的存储器中获得有用的信息。
发明内容
本发明可能够保护在现金交易机或ATM(自动柜员机)上具有重要信息的PIN登录装置。亦即，如果入侵者通过拆除或切下PIN键模块而保持其中的固定结构不变来读取存储器，本发明的装置能保护PIN键模块的密码不被盗窃。例如，本发明的装置可包括，删除SRAM内部数据以及通过切断向SRAM的电源供应使得其内部数据丢失的保护功能，所述SRAM是个存储加密密钥等的存储器。
按照本发明的保护PIN键模块的装置包括键模块、键控扫描板、后盖和电路部分。键模块包括基本上设于键模块前部的密钥输入按钮以及基本上在键模块的后部形成的第一触杆。键控扫描板包括按钮的第一触点、第一触杆的第二触点以及第三触点，其中，第一和第二触点基本上在键控扫描板的前部形成，第三触点基本形成在键控扫描板的后部。后盖与键模块相结合并包括第三触点的第二触杆。电路部分根据第二触点或第三触点上电流或电压的改变，可使得存储的信息不可读，所述电流或电压的改变是由于第一或第二触杆压力的减少或缺乏造成的。
此时，使得存储的信息不可读的电路部分既包括物理保护又包括软件保护，软件保护防止任何时候在输入/输出消息的各种信息存储器上的重要信息泄漏，例如所述存储器有RAM、闪速存储器、光盘和磁盘等。
例如，电路部分可包括向存储介质传送高电压或大量电流的模拟控制模块，以毁坏存储信息的存储介质。另外，电路部分容易使用微控制器生成控制模块，通过使得控制模块控制产生电压或电流的发电机来毁坏存储介质。如果存储介质是只有在电源供电时才保持信息的随机读取存储器，例如SRAM，电路部分通过断电来删除信息。
此外，电路部分可包括具有程序的控制模块，其中包含于存储介质中的记录信息的顺序可被打乱或部分丢失，存储在存储介质上的信息可被虚假的信息代替或被完全删除。
优选地，电路部分可包括存储信息的象SRAM这样的存储器。当电路部分检测到关于第二触点和第三触点中的任意一个电压或电流的改变时，电路部分通过使得存储的信息不可读而防止信息泄漏，就像切断其电源供应一样。
此外，邻近键模块或后盖装有金属板，以在物理上保护密钥键控扫描板阻止盗窃的企图。
第一或第二触杆可包括管状部分和橡胶构件，其中，管状部分在键模块或后盖上朝第二或第三触点伸出，橡胶构件置于管状部分的端部以分别有弹性地压紧第二或第三触点。
电路接头可在电路部分上形成，板接头可根据电路接头在键控扫描板上形成，使得板接头可与电路接头导电连接，以将第一、第二和第三触点的连接状态传送到电路部分。
此处，板接头和电路接头可置于键控扫描板和后盖之间，因此当将后盖从键模块分离时，接头的连接部分容易对入侵者暴露。另外，使用通常具有接点的多个金属销和销孔电连接电路接头与板接头，入侵者可使用导电液体来导电连接金属销和销孔的接点。为了保护装置不被使用导电液体、墨水等所盗，金属销和销孔可垂直穿过第三触点布置。
例如，如果两个第三触点垂直布置，接头的金属销和销孔就水平布置在这两个第三触点之间。此时，板接头布置在穿过第三触点之间的基本在垂线上第一个原因是，防止第三触点的普通接近以及防止第三触点被施加导电液体(导电墨水)。因此，如果后盖从键模块拆除，则电路部分立即会检测到这个事件。第二个原因是为了将电路接头和板接头的连接部分与第二触杆隐藏起来，使得入侵者很难流入导电液体来进行欺骗连接。
另外，至少第二和第三触点之一邻近螺钉的螺钉孔布置。当螺钉旋松或移除时，对于第二和第三触点的第一和第二触杆的连接状态发生改变。电路部分可检测到在第二和第三触点的一个或多个触点上这种电压或电流的改变，并可通过例如毁坏或清除存储的信息，使得存储器不可读。
此外，螺钉孔可形成在键控扫描板的中部，第二触点可置于邻近键控扫描板上的螺钉孔。此时，设置了两个螺钉孔并且第二触点置于所述螺钉孔之间。如果螺钉孔被旋松，用于第二触点的第一触杆脱离。因此，电路部分容易检测到这个事件。
优选地，第二触点或第三触点可包括三个接点，如第一接点、第二接点和第三接点。第一接点和第二接点可通过邻近的触杆导电连接，第三接点可紧密地邻近第一和第二接点来形成电路部分的一部分。当第一和第二接点由于触杆的拆除或分离而断开导电连接时，电路部分会/可使得存储的信息不可读。此外，尽管入侵者可试图用导电液体或墨水导电连接第一和第二接点，但是电路部分可检测第一和第三接点之间或者第二和第三接点之间的连接，使得存储的信息不可读。
另外，第二和第三触点可用压电元件组成以测量压力。因此，如果任意一个第一和第二触杆的压力发生改变并且电压和电流根据压力的改变而改变，则电路部分可检测到这个事件并使得存储的信息不可读。
另外，前膜片可置于键模块和键控扫描板之间。前膜片包括用于根据键模块的按钮来导电连接或切断第一触点的第一切换部分，以及用于根据第一触杆来导电连接或切断第二触点的第二切换部分。
后膜片可置于键控扫描板和后盖之间，其中，后膜片包括根据第二触杆用于导电连接或切断第三触点的第三切换部分。
第一或第二膜片的切换部分与手机按钮上的普通膜片开关相似，包括用于弹性接受压力的弹性圆顶。弹性圆顶的下表面使用碳这样的电导体形成，并与键控扫描板上形成的触点接点相连接。
另外，后支架置于键控扫描板和电路部分之间，以基本上支撑键控扫描板和电路部分防止其弯曲。此时，后支架可用多个金属板形成并且所述金属板可分别具有不同的厚度。后支架置于键控扫描板和电路部分之间，填充了它们之间的间隙。
键模块还包括：连接在按钮后部用于防水的保护橡胶；基本置于按钮前部的前支架，其上具有规则地布置在前支架上的按钮孔；基本置于前支架后部的保护垫，其中所述保护橡胶粘在保护垫上用于防水；基本置于保护垫后部的传送构件，用于传送施加给按钮的压力；基本置于传送构件后部的切换构件，用于传输施加给传送构件的压力；以及包括凹槽的前盖基座，所述凹槽基本形成在前盖基座的前部用于接受传送构件，形成在凹槽上的孔用于通过切换构件和在前盖基座的后部向后伸出压第二触点的第一触杆。
此时，如果用于膜片的第二和第三切换部分的第一触杆和第二触杆中的至少一个从键模块的前盖基座拆除，其上的压力或位置发生改变，用于第二切换部分和第三切换部分的多个第二和第三触点中的至少一个上的电压或电流发生改变，电路部分检测到这个事件并使得存储的信息不可读。
另外，保护垫基本置于按钮的后端部上，防止水渗入前支架，因此，与保护橡胶一起形成防水结构。
此外，前盖基座通过将塑料注入注模形成，多个第一触杆置于前盖基座的后部。第一触杆之一置于前盖基座的中心的一侧，另一第一触杆置于其中心的另一侧，两者相隔预设的间隔。
此时，第一触杆置于前盖基座中心的每一侧，并且前盖与后盖相互隔离。因此，第一触杆的位置发生改变时，第一触杆的第二触点的电压或电流也发生改变。电路部分检测到这个事件并立即使得存储在存储器中的信息不可读。
此外，键模块可包括置于橡胶垫的前部的前盖基座，所述基座包括用于露出按钮的孔以及包括按钮的橡胶垫，所述按钮基本上在橡胶垫的前部向前伸出，第一触杆基本上在橡胶垫的后部向后伸出。
附图说明
通过参看附图对示范实施例的详细说明，本发明对于本领域普通技术人员将更加显而易见，其中相同构件由相同标记代表，所述实施例仅作为说明的目的给出，因此本发明的实施例不限于示范实施例。
图1是显示传统PIN键模块的透视图；
图2是显示按照本发明的一个实施例用于保护PIN键盘模块的装置的透视图；
图3是显示按照本发明的一个实施例的前盖基座的后部的俯视
图；
图4是显示按照本发明的一个实施例用于保护PIN键盘模块的装置的局部透视图；
图5是显示按照本发明的一个实施例用于保护PIN键盘模块的装置的剖视图；
图6是显示图5的第二触杆和第三触点的局部放大图；
图7是显示按照本发明的一个实施例的键控扫描板的上表面的俯视图；
图8是显示按照本发明的一个实施例的键控扫描板的下表面的顶视图；
图9是显示按照本发明的一个实施例保护PIN键盘模块的过程的示意图；
图10是显示按照本发明的一个实施例保护PIN键盘模块的装置的透视图；
图11是显示按照本发明的一个实施例的包括多个按钮的橡胶垫的后部的俯视图；
图12是显示按照本发明的一个实施例保护PIN键盘模块的装置的剖视图；
图13是显示图12的第二触杆和第三触点的局部放大图；
图14是显示按照本发明的一个实施例的键控扫描板的上表面的俯视图；
图15是显示按照本发明的一个实施例的键控扫描板的下表面的顶视图；和
图16是显示按照本发明的一个实施例保护PIN键盘模块的过程的示意图。
具体实施方式
下面，将参考附图更完全地说明本发明的示范实施例。然而，本发明可按多种方式实施，其构造并不局限于在此阐明的这些实施例；更确切地，提供这些实施例是为了使得本发明的披露是完整和彻底的，并完全将本发明的范围传达给本领域技术人员。整个说明书中相同的标记代表相似或相同的元件。
图2是显示按照本发明的一个实施例用于保护PIN键模块的装置的透视图；图3是显示按照本发明的一个实施例的前盖基座的后部的俯视图；图4是显示按照本发明的一个实施例用于保护PIN键模块的装置的局部透视图；图5是显示按照本发明的一个实施例用于保护PIN键模块的装置的剖视图；图6是显示图5的局部放大图；图7是显示按照本发明的一个实施例的键控扫描板的上表面的俯视图；图8是显示按照本发明的一个实施例的键控扫描板的下表面的顶视图；图9是显示按照本发明的一个实施例保护PIN键模块的过程的示意图。
如图所示，为了达到上述目标，按照本发明的一个实施例用于保护PIN键盘模块的装置包括：键模块100，其包括多个按钮111和前盖基座120，其中按钮111基本设于键模块100的前部并且在键模块100的后部形成了多个伸出的第一触杆122；用于键模块100的按钮111的第一切换部分126和用于前盖基座120的第一触杆122的切换部分127；以及，用于通过第一切换部分126和第二切换部分127传送按钮111和第一触杆122的压力的前膜片125。
另外，基本设于键模块100前部的按钮111插入前支架114以靠近保护橡胶113，按钮111的后部紧密地穿过前支架114的后部，并且保护垫116设于保护橡胶113的后部，其中前支架114形成为网格。此时，保护橡胶113防止水通过按钮111和前支架114之间的空隙渗入，保护垫116防止水渗入前盖基座120。
另外，用于传送压力的构件118基本置于保护垫116的后部以及前盖基座120的前部。切换构件119基本置于传送构件118的后部，用于穿过前盖基座120将压力传送到前膜片125的第一切换部分126。
此时，构成键模块100的外表面的按钮111和前支架114用金属板组成，形成防止外部入侵的保护壁。因此，可保护设于键模块内的部件。
另外，前盖基座120通过将塑料注入注模形成，前盖基座120后部上形成的多个第一触杆122中的一个置于前盖基座120的中心的一侧，另一个第一触杆以预设的间隔与其分离置于所述基座120的中心的另一侧。
此时，前盖基座120置于传送构件118的后部，按钮111的后部穿过保护垫116，因此，挤压形成于传送构件118上的凹槽124，然后穿过形成于前盖基座120上的孔，并与切换构件119相结合，从而挤压前膜片125的第一切换部分126。
另外，键控扫描板130置于前膜片125的后部，用于连接第一切换部分126的多个第一触点132和用于连接第二切换部分127的多个第二触点133置于键控扫描板130的前部。还有多个第三触点134置于键控扫描板130的后部。
此时，前膜片125的第一和第二切换部分126和127用弹性圆顶形成，用于有弹性地接受压力。如石墨板这种电导体应用在弹性圆顶的下表面上，电连接置于键控扫描板130上的第一触点132和第二触点133。
另外，置于键控扫描板130的前部的多个第二触点133设为邻近用于连接键模块100和后盖180的螺钉的螺钉孔136，。当螺钉被拆除时，用于第二触点133的第一触杆122的压力或其位置发生改变。
更具体地，用于连接键模块100和后盖180的螺钉的一对螺钉孔136形成在穿过中部的垂线上。第二触点133置于两个螺钉孔136之间。因此，如果螺钉被拆除，用于第二触点133的第一触杆122的压力或位置会发生改变。电路部分170检测到第二触点133的电压或电流的变化，并立即使得存储在存储器上的信息不可读。
另外，包括用于连接第三触点134的切换部分142的后膜片140置于键控扫描板130的后部。包括存储器的电路部分170置于后膜片140的后部，用于进行逻辑运算，其中，存储器首先收到根据与键控扫描板130触点的连接的值，然后存储该值。后盖180置于电路部分170的后部，所述后盖180包括用于包含在后膜片140中的第三切换部分142的第二触杆182，并且与键模块100的前盖基座120相连接。
另外，置于键控扫描板130的后部上的第三触点134成对形成并位于通过中心的垂线上。如上述的第三触点134的布置是为了通过最小的接触检测后盖180从前盖基座120上的拆除。相应地，如果后盖180的后部从前盖基座120移开，即使是很小的距离，用于后膜片的第三切换部分142的第二触杆182上的压力发生改变，连接到后膜片140的第三切换部分142的第三触点134上的电流或电压随之发生变化。
另外，电路部分170的电路接头172设于通过第三触点134和板接头135的垂线上，使得用于传送键控扫描板130的触点的连接状态的板接头135穿过第三触点134。如上述板接头135的布置是为了防止板接头135与第三触点134接近，防止黑客对第三触点应用导电液体(导电墨水)使其与第三触点134的连接的第一状态相同。在电路接头172与板接头135相连接的状态下，如果黑客企图将导电液体倒入电路接头172的接点，那么上述板接头135的布置将通过用于第三触点134的第二触杆182防止包括导电液体在内的器具接近电路接头172。
另外，第三触点134包括第一接点134a和第二接点134b，所述接点通过第二触杆182导电连接，第三触点134还包括紧靠第一接点134a和第二接点134b形成的第三接点134c，并且电路部分170根据第二接点134b和第三接点134c的连接的变化使得存储的信息不可读。此外尽管未显示，第二触点133完全与第三触点一样，也包括通过第一触杆133导电连接的第一接点和第二接点，也可包括邻近第一接点和第二接点的第三接点。
同时，后盖180的第二触杆182在与第一触杆122相反的方向上伸出，其结构与触杆122的结构相似，并包括用于第三切换部分142的管状部分182a和橡胶构件182b。此时，第二触杆182成对形成以与第三触点134一致，并分别置于后盖180的中心部分的上部和下部之上。
另外，第一后支架150置于后膜片140的后部以支撑后膜片140和键控扫描板130。第二支架160形成于用于电路部分170的后盖180内部，并置于第一后支架的后部以支撑电路部分170。此时优选地，第一后支架150和第二后支架160无间隙地紧密结合在一起。
另外，第一后支架150和第二后支架160用钢制成以提高其强度。因此，即使后盖遭到破坏，第一后支架150和第二后支架160也可基本上保护电路部分170。
另外，在电路部分170形成于后盖180内部的状态下，电路部分170的外表面由环氧树脂173模制而成。因此，就可能防止从外部接近电路部分170。
下面将说明按照本发明实施例用于保护PIN键盘模块的过程。
如果存在拆除前盖基座120或键模块100的按钮111的任何企图，以达到通过电路部分170或PIN键盘模块的键控扫描板130来盗窃密码的目的，就需要旋松前盖基座120的螺钉或拆除其上布置了按钮111的前支架114。此时，键模块100会保护PIN键盘模块的前部。
如果用于将前盖基座120固定到后盖180上的螺钉被旋松，任一用于膜片的第二切换部分126和第三切换部分142的第一触杆122和第二触杆182的压力或位置发生改变。此外，任一用于第二切换部分126和第三切换部分142的第二触点133和第三触点134的电压或电流发生改变。同时，当PIN键盘模块遭黑客入侵时，电路部分170识别出第二触点133和第三触点134的电压或电流的改变，从而使得存储的信息不可读。
图10是显示按照本发明的一个实施例保护PIN键盘模块的装置的透视图；图11是显示按照本发明的一个实施例的包括多个按钮的橡胶垫的后部的俯视图；图12是显示按照本发明的一个实施例保护PIN键盘模块的装置的剖视图；图13是显示图12的局部放大图；图14是显示按照本发明的一个实施例的键控扫描板的上表面的俯视图；图15是显示按照本发明的一个实施例的键控扫描板的下表面的顶视图；图16是显示按照本发明的一个实施例保护PIN键盘模块的过程的示意图。
如图所示，为达到以上目标，按照本发明的一个实施例用于保护PIN键盘模块的装置包括：键模块200，其包括橡胶垫210和前盖基座220，其中多个按钮211形成在橡胶垫210的前部，多个伸出的第一触杆222形成在橡胶垫210的后部，橡胶垫210插入包含有孔的前盖基座220中；以及前膜片225，其包括用于键模块200的按钮211的第一切换部分226以及用于第一触杆222的第二切换部分227，用于通过第一和第二切换部分226和227将按钮211和第一触杆222的压力传送到后部。
另外，键控扫描板230置于前膜片225的后部，包括多个用于第一切换部分226的第一触点232、多个用于键控扫描板230的前部的第二切换部分的第二触点233以及多个键控扫描板230的后部的第三触点234。此外，后膜片240置于键控扫描板230的后部，包括用于第三触点234的第三切换部分242，电路部分270置于后膜片240的后部，包括用于接受键控扫描板230的触点的连接状态以进行逻辑运算的存储器。后盖280置于后膜片的后部，包括用于第三触点234的一对第二触杆282并用螺钉与键模块200的前盖基座220连接。
此时，本实施例所包含的前膜片224和后膜片240的结构和材料与先前实施例的相似。用于在橡胶垫210上形成的按钮221的前膜片225的触点226的数目以及键控扫描板230的第一触点232的数目多于先前实施例中的数目。
另外，电路部分270的电路接头272设于通过第三触点234和板接头235的垂线上，使得用于传送键控扫描板230的触点上的连接状态的板接头235穿过第三触点234。上述板接头235的布置是为了防止板接头235接近第三触点234并防止黑客将导电液体(导电墨水)应用于第三触点来使其与第三触点234的连接状态相同。在电路接头272与板接头连接的状态下，如果黑客企图将导电液体倒入电路接头272的接点，如上所述的板接头235的布置将通过用于第三触点234的第二触杆282防止包括导电液体在内的器具接近电路接头272。
另外，第三触点234包括由第一触杆282导电连接的第一接点234a和第二接点234b，第三触点234还包括紧靠第一接点234a和第二接点234b形成的第三接点234c，电路部分270按照第二接点234b和第三接点234c的连接状态使得存储的信息不可读。此外，尽管未显示，完全与第三触点234一样，第二触点233也包括由第一触杆222导电连接的第一接点和第二接点，并可包括邻近第一接点或第二接点的第三接点。
同时，后盖280的第二触杆282从第一触杆222的相反方向伸出，具有与其相同的结构，并包括用于第三触点234的管状部分282a和橡胶构件282b。此时，第二触杆282成对形成以与第三触点234一致，并分别置于后盖280中心部分的上部和下部。
另外，第一后支架250置于后膜片240的后部以支撑后膜片240和键控扫描板230。第二支架260形成在用于电路部分270的后盖280内部，并置于第一后支架250的后部以支撑电路部分270。
另外，第一后支架250和第二后支架260用钢制造以提高强度。因此，即使后盖280遭到破坏，第一支架250和第二后支架260也基本能保护电路部分270。
另外，在电路部分270形成于后盖180内部的状态下，电路部分270的外表面由环氧树脂模制而成。因此，就可能防止从外部接近电路部分270。
在键控扫描板230上形成的第一触点232、第二触点233和第三触点234以及螺钉孔236置于与先前实施例相似的位置。
此后将说明按照本发明一个实施例用于保护PIN键模块的过程。
如果存在拆除前盖基座220或键模块200的按钮211的任何企图，以达到通过电路部分270或PIN键盘模块的键控扫描板230来盗窃密码的目的，需要旋松前盖基座220的螺钉或拆除其上布置了按钮211的橡胶垫210。此时，键模块200会保护PIN键盘模块的前部。
如果用于将前盖基座220固定到后盖280上的螺钉被旋松，以将前盖基座220从后盖280拆除，或者前盖基座220遭到毁坏从而移动橡胶垫210，任一用于膜片的第二切换部分226和第三切换部分242的第一触杆222和第二触杆282的压力或位置发生改变。此外，任一用于第二切换部分226和第三切换部分242的第二触点233和第三触点234的电压或电流发生改变。同时，当PIN键盘模块遭到黑客入侵时，电路部分270识别出这种改变，从而使得存储的信息不可读。
如上所述，如果采用了按照本发明用于保护PIN键模块的装置，倘若存在任何从物理上拆除PIN键盘模块以安装盗窃设备来达到查出密码目的的盗窃企图，任一第一和第二触杆上的压力和位置会发生改变，其中PIN键盘模块安装在金融终端等设备中。另外，任一键控扫描板的第二和第三触点上的电压或电流发生改变，并且电路部分检测到这个事件并识别出PIN键盘模块遭黑客入侵这个事件，从而使得存储的信息不可读。因此，本发明能提高PIN键模块的安全性。
另外，PIN键模块包含的键控扫描板的后部由多个金属支架保护。因此，本发明能防止黑客入侵，例如切开PIN键模块的后部来接近键控扫描板。
另外，一种保护PIN键盘模块的装置所采用的检测黑客入侵的方法不通过固定部件与触点导电连接。所述方法使用键控扫描板的触点，其中电路部分检测连接状态。因此，如果入侵者在固定部件周围切开或切下固定部件，触杆的压力或位置会在触点上发生改变，触点上的电压或电流随之改变。因此，本发明能通过电路部分立即检测到入侵事件。
Claims (17)
1.一种防盗PIN登录装置，包括：
键模块，包括置于其前部的按钮以及形成于其后部的第一触杆；
键控扫描板，包括第三触点、用于按钮的第一触点、以及用于第一触杆的第二触点，其中，第一触点和第二触点形成在键控扫描板的前部，而第三触点形成在键控扫描板的后部；
后盖，与键模块相连接，包括用于第三触点的第二触杆；以及，
电路部分，用于根据第二触点或第三触点上的电流或电压的改变使得存储的信息不可读，所述电流或电压的改变是由于第一触杆和第二触杆压力的减少或缺乏造成的。
2.如权利要求1所述的装置，使用金属板形成构成键模块的外表面的按钮和前支架，以保护位于键模块内部的部件。
3.如权利要求1所述的装置，其中，第一触杆或第二触杆包括管状部分和橡胶构件，所述管状部分在键模块或后盖上向第二触点或第三触点伸出，所述橡胶构件置于管状部分的端部以弹性分别压第二触点或第三触点。
4.如权利要求1所述的装置，其中，电路接头形成在电路部分上，板接头根据电路接头在键控扫描板上形成，所述板接头导电连接电路接头以将第一、第二和第三触点上的连接状态传送到电路。
5.如权利要求1所述的装置，其中，电路部分包括用于存储信息的存储器，所述电路部分根据一个或多个第二触点和第三触点上的电流或电压的改变销毁或擦掉存储的消息，来使得存储器不可读。
6.如权利要求1所述的装置，其中，第二触点和第三触点使用压电元件来测量压力。
7.如权利要求1所述的装置，其中，至少第二触点和第三触点之一布置为邻近用于连接键模块和后盖的螺钉的螺钉孔。
8.如权利要求1所述的装置，其中，用于连接键模块和后盖的螺钉的螺钉孔形成在键控扫描板的中心部分，所述第二触点布置为邻近键控扫描板上的螺钉孔。
9.如权利要求1所述的装置，其中，第三触点置于穿过键控扫描板后部的中心部分的垂线上。
10.如权利要求1所述的装置，其中，第二触点或第三触点包括第一接点和第二接点，所述第一接点和第二接点由第一触杆或第二触杆导电连接，所述第二触点或第三触点还包括紧靠第一接点和第二接点形成以形成电路部分的一部分的第三接点，所述电路部分根据第一接点和第二接点之间或者第二接点和第三接点之间的连接状态使得存储的信息不可读。
11.如权利要求10所述的装置，其中，第三接点围绕第一接点和第二接点形成为环形。
12.如权利要求1所述的装置，还包括置于键模块和键控扫描板之间的前膜片，其中，所述前膜片包括根据键模块的按钮用于导电连接或切断第一触点的第一切换部分，以及根据第一触杆用于导电连接或切断第二触点的第二切换部分。
13.如权利要求1所述的装置，还包括置于键控扫描板和后盖之间的后膜片，其中，后膜片包括根据第二触杆用于导电连接或切断第三触点的切换部分。
14.如权利要求1所述的装置，还包括置于键控扫描板和电路部分之间的后支架，以稳定地支撑所述键控扫描板和电路部分。
15.如权利要求14所述的装置，其中，所述后支架用多块金属板形成。
16.如权利要求1所述的装置，其中所述键模块还包括：
保护橡胶，连接在所述按钮的后部用于防水；
前支架，置于所述按钮的前部，具有按规律布置在前支架中的按钮孔；
保护垫，置于所述前支架的后部，其中所述保护橡胶粘在所述保护垫上用于防水；
传送构件，置于所述保护垫的后部，用于传送施加给所述按钮的压力；
切换构件，置于所述传送构件的后部，用于传送施加给所述传送构件的压力；以及，
前盖基座，包括形成于其前部用于接受所述传送构件的凹槽，形成在所述凹槽上用于通过所述切换构件的孔以及在前盖基座的后部上向后伸出以压第二触点的第一触杆。
17.如权利要求1所述的装置，其中键模块还包括：
橡胶垫，包括在橡胶垫的前部上向前伸出的按钮，以及在所述橡胶垫的后部上向后伸出的第一触杆；以及，
前盖基座，置于所述橡胶垫的前部，包括用于露出所述按钮的孔。
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020040092464A KR20060046933A (ko) | 2004-11-12 | 2004-11-12 | 핀패드 모듈의 보호장치 |
| KR1020040092464 | 2004-11-12 |
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| CN100474360C true CN100474360C (zh) | 2009-04-01 |
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| CNB2005100896833A Expired - Fee Related CN100474360C (zh) | 2004-11-12 | 2005-08-08 | 防盗的个人识别码登录装置 |
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| Country | Link |
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| US (1) | US7238901B2 (zh) |
| KR (1) | KR20060046933A (zh) |
| CN (1) | CN100474360C (zh) |
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| US5654701A (en) * | 1996-05-09 | 1997-08-05 | Dresser Industries, Inc. | Detachable tamper resistant security module |
| US6065679A (en) * | 1996-09-06 | 2000-05-23 | Ivi Checkmate Inc. | Modular transaction terminal |
| US6941274B1 (en) * | 1997-11-28 | 2005-09-06 | Diebold, Incorporated | Automated transaction machine |
| GB0012478D0 (en) * | 2000-05-24 | 2000-07-12 | Ibm | Intrusion detection mechanism for cryptographic cards |
| US7045730B2 (en) * | 2003-12-30 | 2006-05-16 | Symbol Technologies, Inc. | Tamper resistance apparatus for an electrical device and an electrical device including the apparatus |
| US6838619B1 (en) * | 2003-12-30 | 2005-01-04 | Symbol Technologies, Inc. | Tamper resistance apparatus for an electrical device and an electrical device including the apparatus |
-
2004
- 2004-11-12 KR KR1020040092464A patent/KR20060046933A/ko not_active Application Discontinuation
-
2005
- 2005-05-06 US US11/123,191 patent/US7238901B2/en active Active
- 2005-08-08 CN CNB2005100896833A patent/CN100474360C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1773575A (zh) | 2006-05-17 |
| US7238901B2 (en) | 2007-07-03 |
| US20060102458A1 (en) | 2006-05-18 |
| KR20060046933A (ko) | 2006-05-18 |
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