CN103370954B - 具有近场通信(nfc)设备并且提供记忆擦除的移动无线通信设备和相关方法 - Google Patents
具有近场通信(nfc)设备并且提供记忆擦除的移动无线通信设备和相关方法 Download PDFInfo
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Abstract
一种移动无线通信设备可以包括无线收发机、与无线收发机相连的处理器和与处理器相连的近场通信(NFC)设备。NFC设备可以包括NFC控制器、与NFC控制器相连的NFC收发机和与NFC控制器相连的第一存储器。第一存储器可以被配置为存储至少一个第一应用。移动无线通信设备还可以包括第二存储器,该第二存储器与处理器相连并被配置为存储至少一个第二应用。处理器可以被配置为基于安全条件禁用NFC收发机,禁止对至少一个第一应用的访问,擦除至少一个第二应用,执行重置操作,以及在重置操作之后,从第一存储器擦除至少一个应用。
Description
技术领域
本申请涉及通信领域,更具体地,涉及无线通信系统和相关的方法。
背景技术
移动通信系统越来越受欢迎,并且已经成为个人通信和商业通信的重要组成部分。如今,各种移动设备并入了个人数字助理(PDA)特征,例如,日历、地址簿、任务列表、计算器、备忘录和编辑程序、媒体播放器、游戏等。通常,这些多功能设备允许无线地发送和接收电子邮件(email)消息,并且经由例如蜂窝网络和/或无线局域网(WLAN)来访问互联网。
一些移动设备并入了非接触式卡技术和/或近场通信(NFC)芯片。NFC技术通常用于基于射频识别(RFID)标准、使用磁场感应来进行非接触式短距离通信,从而实现电子设备(其包括移动无线通信设备)之间的通信。这种短距离高频无线通信技术在短距离(例如,仅几厘米)内在设备之间交换数据。
附图说明
图1是根据示例性实施例的通信系统的示意性框图。
图2是示出了移动设备的显示器的、图1的通信系统的示意图。
图3是图1的通信系统的更详细的示意图。
图4是示出了与图1至图2的系统和设备相关联的示例性方法方案的流程图。
图5是示出了可以与图1至图3的设备一起使用的示例性移动无线通信设备组件的示意性框图。
具体实施方式
参照附图给出了本描述,在本描述中,示出了示例性实施例。然而,可以使用很多不同的实施例,因此,本描述不应被理解为限制于本文阐述的实施例。更确切地说,这些实施例将使本公开更为清楚和完整。全文中,相似的参考标记指示相似的元件。
一般而言,本文公开了一种移动无线通信设备,其可以包括例如无线收发机、与无线收发机相连的处理器以及与处理器相连的近场通信(NFC)设备。NFC设备可以包括NFC控制器、与NFC控制器相连的NFC收发机和与NFC控制器相连的第一存储器。例如,第一存储器可以被配置为存储至少一个第一应用。移动无线通信设备还可以包括第二存储器,第二存储器与处理器相连并被配置为存储至少一个第二应用。例如,处理器可以被配置为基于安全条件禁用NFC收发机,禁止对至少一个第一应用的访问,擦除至少一个第二应用,执行重置操作,以及在重置操作之后,从第一存储器擦除至少一个应用。
例如,处理器可以被配置为在擦除第二存储器的至少一个应用之后执行重置操作。例如,第一存储器可以包括安全元件。
处理器可以被进一步配置为在从第一存储器擦除至少一个第一应用之后启用对NFC收发机的访问。例如,处理器可以被进一步配置为在执行重置操作之后,基于经由无线收发机的通信来擦除至少一个第一应用。
移动无线通信设备可以包括与控制器相连的输入设备。安全条件可以包括经由输入设备进行的阈值次数的不成功访问尝试。例如,安全条件可以包括经由输入设备输入的安全命令。安全条件还可以包括经由无线收发机接收的安全命令。
移动无线通信设备还可以包括与处理器相连的电源。处理器可以被配置为通过至少选择性地禁用电源来执行重置操作。
还提供了一种相关的通信系统和方法。方法方案涉及一种用于移动无线通信设备的通信方法,该移动无线通信设备可以包括无线收发机电路、与无线收发机电路相连的处理器和与处理器相连的近场通信(NFC)设备。NFC设备可以包括NFC控制器、与NFC控制器相连的NFC收发机和与NFC控制器相连并被配置为存储第一多个应用的第一存储器。移动无线通信设备还可以包括第二存储器,第二存储器被配置为存储例如第二多个应用。例如,该方法可以包括使用处理器基于安全条件禁用NFC收发机,使用处理器禁止对第一多个应用的访问,以及使用处理器擦除第二应用。该方法还可以包括使用处理器执行重置操作,以及使用处理器在重置操作之后从第一存储器擦除第一多个应用。
相关的计算机可读介质方案涉及一种用于与移动无线通信设备(例如,上文中简短描述的移动无线通信设备)一起使用的计算机可读介质。计算机可读介质可以具有用于使移动无线通信设备执行各个步骤的计算机可执行指令。这些步骤可以包括:基于安全条件禁用NFC收发机,禁止对第一多个应用的访问,以及擦除第二应用。这些步骤可以进一步包括:执行重置操作,以及在重置操作之后从第一存储器擦除第一多个应用。
首先参照图1至图2,通信系统30示意性地包括与对象相关联的近场通信(NFC)终端31和移动无线通信设备32(在本文中也称作“移动设备”)。示例性的移动无线通信设备可以包括便携式媒体播放器或个人媒体播放器(例如,音乐或MP3播放器、视频播放器等)、便携式游戏设备、便携式电话或移动电话、智能电话、平板计算机、数码相机等。
移动设备32示意性地包括便携式外壳33和由便携式外壳33支撑的无线收发机34。无线收发机34可以包括蜂窝收发机或者其它类型的无线通信收发机,并且可以传送语音和数据(例如,电子邮件)的任意组合。无线收发机34可以与安全服务器36进行通信,安全服务器36可以提供移动设备32的远程指令和配置(provisioning)操作中的一个或更多个。
移动设备32包括由便携式外壳33支撑的显示器46。显示器46可以包括液晶显示器(LCD),并且可以被配置为显示与数据通信或语音通信有关的信息。例如,显示器46可以是包括背光的有源显示器的形式。显示器46可以显示电子邮件信息、联系人信息或呼叫信息。显示器46也可以其他类型的显示器,例如,无源显示器,而且也可以显示其它信息。
移动设备32还包括输入设备45。例如,输入设备45可以是小键盘、触摸屏显示器或其它输入设备。
移动设备32还包括处理器35,处理器35由便携式外壳33支撑并且与无线收发机电路34、输入设备45和显示器46相连。可以使用硬件(例如,存储器等)和软件组件(即,用于使移动设备32执行本文所描述的各个功能或操作的计算机可读指令)来实现处理器35。
移动设备32还包括NFC设备40,NFC设备40由便携式外壳33支撑并与处理器35相连。NFC设备40包括NFC控制器41和与NFC控制器41相连的NFC收发机42。NFC控制器41和NFC收发机42有利地协作以执行至少一个NFC通信功能。例如,NFC设备40可以基于与NFC终端31的临近,使用NFC通信来与NFC终端31进行通信。NFC终端31可以是NFC标签、具有NFC能力的移动设备、智能海报等。
作为背景,NFC是一种短距离无线通信技术,在该技术中,具有NFC能力的设备被“刷、扫”、“碰撞”或以其它方式移动至紧邻的状态以便进行通信。在一个非限制性的示例性实现中,NFC可以13.56MHz进行操作,并且具有大约10cm的有效范围,但是还可以使用其它适合版本的近场通信,例如,可以具有不同的操作频率、有效范围等。
NFC设备40还包括与NFC控制器41相连的第一存储器43。更具体地说,第一存储器43可以嵌入在NFC设备硬件中或者嵌入在NFC集成电路(IC)中。例如,第一存储器43可以是防篡改的。换言之,第一存储器43可以包括安全元件。第一存储器43或安全元件可以存储与NFC通信有关的应用或者用于与NFC终端31进行通信的非接触式应用。例如,这些应用可以包括金融支付应用、安全访问系统应用、优惠卡应用和其它应用,并且可以对这些应用进行加密。在一些示例性实施例中,第一存储器43可以仅存储一个应用。
移动设备32还包括第二存储器44。例如,第二存储器44可以是设备存储器。换言之,第二存储器44可以包括操作系统文件、应用和其它设备数据。例如,在一些示例性实施例中,第二存储器44可以是通用集成电路卡(UICC)的一部分。第二存储器44还可以是可移除的,例如,可以是安全数字(SD)卡或订户标识模块(SIM)卡。第二存储器44可以是诸如闪存存储器等的另一种存储器。当然,虽然在本文中描述了第一存储器43和第二存储器44,但是可以使用多于两个的存储器。换言之,应用或安全元件可以存储在多个存储器设备中或者遍布多个存储器设备。还应当注意的是,安全元件例如可以实现在公用存储器的专用或安全区域中。
处理器35可以被配置为基于安全条件来禁用NFC收发机42。安全条件可以在设备32的用户不能得到认证时发生,例如,由于用户经由输入设备45输入了太多次不正确的密码。可替换地,安全条件可以在用户可能已经经由输入设备45选择的安全条件已经发生时发生,或者可以在用户希望执行与安全条件相关联的操作时发生,例如,在用户期望将设备提供给另一个用户时。这些操作可以统称为“清除(wipe)”。此外,安全条件可以在设备32(例如,从系统管理员)接收到指示安全条件的远程命令(即,清除命令)时发生。实际上,清除可以在任何时候发生,而不论移动设备32是否连接到网络。
如果检测到安全条件,则处理器35可以被配置为禁止对第一存储器43上的应用(即,诸如安全支付应用等的基于NFC的应用)的访问。因为移动设备32通常不具有对第一存储器43的无限制的读取/写入访问(这是由于第一存储器并不固有地“相信”移动设备32),因此执行禁止。由此,安全服务器36能够基于与第一存储器43的通信来发起对第一存储器43的清除,如下文中进一步详细描述的。
在禁止对第一存储器43上的应用的访问之后,处理器35被配置为从第二存储器44或设备存储器擦除内容或者第二应用。换言之,移动设备32被清除。
在成功地从第二存储器44擦除应用之后,处理器35执行重置操作。换言之,重置操作可以基于成功的清除。可以通过选择性地禁用由外壳33支撑并与处理器35相连的电源37来执行重置操作。换言之,重置操作可以是对移动设备32进行断电/通电循环。例如,电源37可以是电池。在一些示例性实施例中,可以不执行重置操作。
处理器35还被配置为在重置操作之后从第一存储器43擦除应用。在重置操作之后,处理器35可以基于经由无线收发机34从安全服务器36接收的命令来擦除应用。在从第一存储器44删除或清除应用之后,处理器35被配置为启用对NFC收发机的访问。
在一些示例性实施例中,基于安全条件,可以不擦除来自第二存储器44的内容或第二应用。基于安全条件,可以擦除第一存储器43上的应用,同时选择性地维持第二存储器44上的第二应用。换言之,处理器35可以被配置为从第一存储器43擦除应用而不执行擦除第二应用的步骤以及重置的步骤。
现在,参照图3,在一个有利的示例性实施例中,第一存储器43可以是嵌入式安全元件(eSE)。eSE是管理和包括已经提供给移动设备32的凭证(例如,信用卡、门禁卡、过境签证等)的集成电路(IC)。例如,eSE 43运行GlobalPlatform 2.1.1并且与JavaCard 2.2.2兼容。eSE 43可以运行其它或额外的平台或者与其它或额外的平台兼容。
在eSE 43内,GlobalPlatform负责管理其它小应用程序的生命周期,并负责向这些小应用程序提供安全服务(例如,允许创建应用安全域)。安全域维持每一个小应用程序的生命周期状态(例如,活动的、锁定的等),管理用于对小应用程序进行授权访问的密钥,并且当在安全服务器36(即,可信服务管理器(TSM))与小应用程序之间建立安全信道时用作端点。安全服务器36或TSM通常负责配置和管理第一存储器43上属于其安全域的小应用程序。
RF读取器,更具体地,NFC读取器(例如,NFC终端31)可以经由NFC控制器41和NFC收发机42与安装在eSE 43上的小应用程序进行通信。读取器或者NFC终端31首先通过小应用程序的小应用程序标识符(AID)来选择小应用程序,GlobalPlatform核查该小应用程序的存在(并且验证该小应用程序处于正确的生命周期状态),然后GlobalPlatform将由读取器发送的其它应用协议数据单元(APDU)路由到小应用程序。通常,诸如NFC终端31等的RF读取器不开放去往安全域的安全信道,并且与NFC终端发生的任何认证由所选择的特定的小应用程序负责。
TSM 36可以通过使用适合的主安全域(issuer security domain (ISD))密钥对自身进行认证,来开放经由移动设备32去往ISD的安全信道。ISD被认为是与根TSM进行通信并且允许安装小应用程序并管理应用安全域(ASD)的安全端点。该安全信道对于移动设备32是完全不透明的。然后,TSM 36可以管理小应用程序(例如,安装和删除小应用程序,改变它们的生命周期状态),并且管理eSE 43上的应用安全域。在建立了与安全域的安全信道之后,TSM 36然后可以向属于该安全域的小应用程序发送APDU。小应用程序可以确定它正在通过安全信道与其TSM 36进行通信,并因此可以允许访问特权或“管理”命令。
eSE 43通常不像TSM 36一样“信任”移动设备32,这是因为Global Platform可能并不旨在使移动设备有权访问用于开放安全信道所需的密钥。然而,小应用程序可以确定它正在通过基带接口进行通信,并且因此允许访问用其它方式得不到的命令。基带接口通常是指处理器35与eSE 43或者第一存储器之间(经由NFC控制器41)的通信。例如,其可以包括从无线收发机34发出并通过基带接口发送到eSE 43的命令。
例如,信用卡小应用程序可以允许基带接口将其置于“可见”状态或“隐藏”状态,同时允许通过NFC收发机42或RF接口访问对于典型的金融交易必需的命令。应当注意的是,由于该限制,因此移动设备32可能不能在传统意义上“清除”eSE 43。基于这些接口和由Global Platform提供的应用编程接口(API),通常无法使移动设备32删除小应用程序,或者就此而言,甚至无法列举安装/具体实现在eSE43上的小应用程序。
基于先前描述过的考虑,移动设备32可能越来越难以直接从eSE43删除小应用程序。然而,相反,移动设备延迟清除直到可以联系TSM36才能清除eSE 43的时候为止可能是难以接受的,特别是考虑到攻击者可能移除移动设备SIM或者任何其它永久性存储设备(即,第二存储器44)以确保它不具有无线电覆盖。
在本实施例中,处理器35采取步骤以确保当触发移动设备清除时数据和对eSE 43的访问被锁住(这实际上类似于终端用户清除eSE 43),并且将导致在下一个可能的机会(即,不论移动设备32何时具有数据覆盖并且能够联系上TSM 36)时清除eSE。
eSE 43可以包括用于执行清除过程的小应用程序或其它代码。更具体地,eSE 43可以包括一个或更多个仿真层,例如,MIFARE仿真层和iClass仿真层。例如,仿真层可以不直接链接到eSE 43上的小应用程序或其它代码。小应用程序通常包括用于向其相应的仿真层进行写入的安全密钥,例如,对于MIFARE仿真类别而言,针对MIFARE存储器的特定块,该安全密钥是根据K_A和K_B导出的K_MIFARE。可以由TSM 36安装和具体实现每一个清除小应用程序。小应用程序可以通过基带接口可见,并且它可以对特定的APDU进行响应,其中,该APDU例如可以触发小应用程序使用安全密钥清除其相应的仿真层。
如果向小应用程序授予卡锁定特权,则可以由小应用程序将ISD生命周期状态移至卡锁定,从而有效地禁止对eSE 43上的所有小应用程序的访问。因此,可以由TSM 36向ISD安装和具体实现清除小应用程序,并且给予清除小应用程序卡锁定特权。小应用程序可以仅通过基带接口可见,并且可以对特定的APDU进行响应,其中该APDU触发小应用程序将ISD生命周期状态移至卡锁定。可以使用额外的代码,使得诸如内部代码等的某些部分可以与该小应用程序进行通信。
在正常操作状态下,用户正常地使用移动设备32进行语音通信和/或数据通信。例如,如果用户使用钱包应用并且TSM 36已经向其移动设备的eSE 43安装了任何事物,则TSM向ISD安装并具体实现“清除小应用程序”,并且断言指示eSE 43的持久标签正在使用。如果在某一时刻,向eSE 43提供了例如仿真层凭证,则将在此时安装和具体实现相应的仿真层的清除小应用程序。例如,如果向eSE 43提供了MIFARE凭证,则将在此时安装和具体实现MIFARE清除小应用程序。
在第一步骤中,触发清除。如上所述,可以通过多种方式来触发移动设备的清除,所述多种方式例如是:经由输入设备45进行太多次不正确的密码猜测来试图取得对移动设备32的访问,用户可能已经在移动设备上选择了“清除”选项,或者可以发送远程清除命令。在远程清除的情况下,例如,可以发送确认。值得注意的是,如果未发送该确认,则可能不能延迟清除。
在第二步骤中,锁住对用于与eSE 43和收发机42进行通信的处理接口的访问。如果已经对指示eSE 43的永久性标签进行个性化,则移动设备的清除代码可以断言已经锁定了指示eSE 43的永久性标签。可以设置或清除上述永久性标签中的每一个。当调用eSE主接口API和NFC收发机API时,它们核查已经锁定了指示eSE 43的永久性标签的值。如果断言已经锁定了指示eSE 43的永久性标签,则eSE主接口API通常应当忽略并非来自内部或可信模块的任何调用,并且NFC收发机API应当禁止对卡仿真模式的所有访问。
在第三步骤中,清除每一个仿真层。通过基带接口向相应的清除小应用程序发送清除APDU。小应用程序清除仿真层中的个性化数据。更具体地,例如,清除APDU可以清除iClass仿真层和MIFARE仿真层中的个性化数据。
在第四步骤中,将eSE 43/ISD移至卡锁定状态。通过基带接口向清除小应用程序发送清除APDU。小应用程序将ISD状态移至卡锁定,这有效地拒绝了对eSE 43上的小应用程序和安全域的访问。应当注意的是,该步骤必须在第三步骤之后发生,这是因为如果该步骤未在第三步骤之后发生,则在这些步骤中与清除仿真层的小应用程序的通信将不能发生。在该步骤之后,虽然eSE 43仍然包括个性化的小应用程序,但是这些小应用程序不能被除了TSM 36以外的任何对象访问。从终端用户的角度来看,eSE 43“被清除”。
在第五步骤中,清除移动设备32。例如,通过操作系统(OS)代码来清除移动设备32。
在第六步骤中,移动设备32重新启动。移动设备32在清除成功之后重新启动。
在第七步骤中,eSE代理(未示出)向TSM 36发送信号。eSE代理启动并且通过尝试通过基带接口选择ISD或者通过核查已经锁定了指示eSE 43的永久性标签来检测ISD处于卡锁定状态。然后,eSE代理等待数据连接,并且以信号形式告知TSM 36需要清除eSE 43。
在第八步骤中,清除eSE 43。TSM 36从eSE 43删除所有小应用程序。
在第九步骤中,恢复对eSE主接口API和NFC收发机42的访问。一旦TSM 36已确知已经从eSE 43删除了所有小应用程序,它就以信号形式告知eSE代理解除断言已经锁定了指示eSE 43的永久性标签。在这一阶段,向第三方解锁eSE主接口API,并且准许NFC收发机42再次进入卡仿真模式。此时,eSE 43已经重置为出厂状态。
现在,参照图4的流程图60,描述有关的方法方案。从框62开始,处理器35确定是否已经发起安全条件或清除(框64)。如果确定安全条件或清除,则处理器35禁用NFC收发机42(框66)。然后,处理器35禁止对第一存储器43上的第一多个应用的访问(框68)。在框70,处理器35从第二存储器44擦除第二应用。由处理器35执行重置操作(框72)。在框74,一旦与处理器35建立了连接,安全服务器36就经由无线收发机34向处理器35发送信号。在框76,如果接收到来自安全服务器36的信号,则处理器35从第一存储器43擦除第一多个应用。在框78,在擦除第一多个应用之后,重新启用NFC收发机42。在框80,该方法结束。
现在,参照图5,进一步描述可以根据上述实施例使用的移动无线通信设备1000的示例性组件。设备1000示意性地包括外壳1200、键盘或小键盘1400和输出设备1600。所示的输出设备是显示器1600,该显示器1600可以包括全图形LCD。可以可替换地使用其它类型的输出设备。处理设备1800包含在外壳1200中,并且被连接在小键盘1400与显示器1600之间。处理设备1800响应于小键盘1400上的按键的驱动,控制显示器1600的操作以及移动设备1000的整体操作。
外壳1200可以垂直地延长,或者可以具有其它大小和形状(例如,包括蛤壳状外壳结构)。小键盘可以包括模式选择键或者用于在文本输入与电话输入之间进行切换的其它硬件或软件。
除了处理设备1800以外,在图5中还示意性地示出了移动设备1000的其它部分。这些部分包括通信子系统1001;短距离通信子系统1020;小键盘1400和显示器1600以及其它输入/输出设备1060、1080、1100和1120;以及存储设备1160、1180和各种其它设备子系统1201。移动设备1000可以包括具有数据通信能力并且可选择地具有语音通信能力的双向RF通信设备。此外,移动设备1000可以具有经由互联网与其它计算机系统进行通信的能力。
由处理设备1800执行的操作系统软件被存储在永久性存储设备(例如,闪存存储器1160)中,但也可以存储在其它类型的存储设备(例如,只读存储器(ROM))或者类似的存储元件中。此外,系统软件、具体的设备应用或者其各个部分可以临时装载到易失性存储设备(例如,随机存取存储器(RAM)1180)中。由移动设备接收的通信信号也可以存储在RAM1180中。
除了处理设备1800的操作系统功能以外,处理设备1800还实现对设备1000上的软件应用1300A-1300N的执行。可以在制造期间将控制基本设备操作(例如,语音通信1300A和数据通信1300B)的一组预定的应用安装在设备1000上。此外,可以在制造期间安装个人信息管理器(PIM)应用。PIM能够组织和管理数据项,例如,电子邮件、日历事件、语音邮件、约会和任务项。PIM应用还能够经由无线网络1401发送和接收数据项。可以经由无线网络1401将PIM数据项与所存储的相应数据项或者与主机计算机系统相关联的相应数据项进行无缝整合、同步,并且使用这些相应的数据项来更新PIM数据项。通过通信子系统1001并且可能通过短距离通信子系统来执行包括数据通信和语音通信的通信功能。通信子系统1001包括接收机1500、发射机1520和一根或更多根天线1540和1560。此外,通信子系统1001也包括处理模块,例如,数字信号处理器(DSP)1580和本地振荡器(LO)1601。通信子系统1001的具体设计和实现取决于移动设备1000将要在其中进行操作的通信网络。例如,移动设备1000可以包括这样的通信子系统1001,即,该通信子系统1001被设计为与MobitexTM、数据TACTM或通用分组无线电服务(GPRS)移动数据通信网络一起操作并且还被设计为与多种语音通信网络(例如,AMPS、TDMA、CDMA、WCDMA、PCS、GSM、EDGE等)中的任意一种一起操作。其它类型的数据网络和语音网络(单独的和集成的)也可以与移动设备1000一起使用。移动设备1000还可以符合诸如3GSM、3GPP、UMTS、4G等的其它通信标准。
网络访问要求根据通信系统的类型而改变。例如,在Mobitex和DataTAC网络中,使用与每一个设备相关联的唯一个人标识号或PIN在网络上注册移动设备。然而,在GPRS网络中,网络访问与设备的订户或用户相关联。因此,GRPS设备通常涉及使用订户标识模块(其通常称作SIM卡),以在GPRS网络上进行操作。
当已经完成了所需的网络注册或激活过程时,移动设备1000可以通过通信网络1401来发送和接收通信信号。由天线1540从通信网络1401接收的信号被路由到接收机1500,接收机1500提供信号放大、下变频、滤波、信道选择等,并且还可以提供模数转换。对所接收的信号的模数转换允许DSP 1580执行更复杂的通信功能,例如,解调和解码。通过类似的方式,要发送到网络1401的信号由DSP 1580进行处理(例如,调制和编码),并且然后被提供给发射机1520以进行数模转换、上变频、滤波、放大、并且经由天线1560发送到通信网络1401(或网络)。
除了处理通信信号以外,DSP 1580还提供了对接收机1500和发射机1520的控制。例如,可以通过在DSP 1580中实现的自动增益控制算法来自适应地控制在接收机1500和发射机1520中施加到通信信号的增益。
在数据通信模式中,诸如文本消息或网页下载等的接收信号由通信子系统1001进行处理,并且被输入到处理设备1800。所接收的信号然后由处理设备1800进行进一步处理以向显示器1600输出,或者可替换地向某一其它辅助I/O设备1060输出。设备还可以用于使用小键盘1400和/或某一其它辅助I/O设备1060(例如,触摸板、摇杆开关、拇指转轮或者某种其它类型的输入设备)来构建数据项(例如,电子邮件消息)。然后,可以经由通信子系统1001通过通信网络1401来发送所构建的数据项。
在语音通信模式中,除了所接收的信号被输出到扬声器1100以及用于传输的信号是由麦克风1120生成的以外,对设备的整体操作基本上类似于数据通信模式。诸如语音消息记录子系统等的可替换的语音或音频I/O子系统也可以实现在设备1000上。此外,显示器1600也可以在语音通信模式中使用,例如,以显示呼叫方的身份、语音呼叫的持续时间或者其它与语音呼叫有关的信息。
短距离通信子系统实现了移动设备1000与其它邻近的系统或设备(其不必是类似的设备)之间的通信。例如,短距离通信子系统可以包括红外线设备以及相关联的电路和组件、蓝牙TM通信模块,以提供与类似启用的系统和设备的通信,或者短距离通信子系统可以包括近场通信(NFC)传感器,以用于经由NFC通信与NFC设备或NFC标签进行通信。
在受益于在前面的描述和相关联的附图中给出的教导的情况下,本领域技术人员可以想到很多修改和其它实施例。因此,应当理解的是,各种修改和实施例旨在包含在所附权利要求的范围内。
Claims (19)
1.一种移动无线通信设备,包括:
无线收发机;
处理器,与所述无线收发机相连;
近场通信NFC设备,与所述处理器相连,所述NFC设备包括:
NFC控制器,
NFC收发机,与所述NFC控制器相连,以及
第一存储器,与所述NFC控制器相连并嵌入所述NFC设备内,所述第一存储器被配置为存储至少一个第一应用;以及
第二存储器,与所述处理器相连,其中所述第二存储器是通用集成电路卡UICC的一部分,并被配置为存储至少一个第二应用;
所述处理器被配置为基于安全条件执行以下步骤:
禁用所述NFC收发机;禁止对所述至少一个第一应用的访问;擦除所述至少一个第二应用;执行重置操作;以及在禁用所述NFC收发机和执行所述重置操作二者之后,从安全服务器接收信号并因此擦除所述至少一个第一应用。
2.根据权利要求1所述的移动无线通信设备,其中,所述处理器被配置为执行重置操作包括:所述处理器被配置为在擦除所述第二存储器的所述至少一个第二应用之后执行所述重置操作。
3.根据权利要求1所述的移动无线通信设备,其中,所述第一存储器包括安全元件。
4.根据权利要求1所述的移动无线通信设备,其中,所述处理器被进一步配置为:在从所述第一存储器擦除所述至少一个第一应用之后,启用对所述NFC收发机的访问。
5.根据权利要求1所述的移动无线通信设备,其中,所述处理器被进一步配置为:在执行所述重置操作之后,基于经由所述无线收发机的通信,擦除所述至少一个第一应用。
6.根据权利要求1所述的移动无线通信设备,还包括:输入设备,与所述处理器相连;其中,所述安全条件包括经由所述输入设备进行的阈值次数的不成功访问尝试。
7.根据权利要求1所述的移动无线通信设备,还包括:输入设备,与所述处理器相连;其中,所述安全条件包括经由所述输入设备输入的安全命令。
8.根据权利要求1所述的移动无线通信设备,其中,所述安全条件包括经由所述无线收发机接收的安全命令。
9.根据权利要求1所述的移动无线通信设备,还包括:电源,与所述处理器相连;其中,所述处理器被配置为通过至少选择性地禁用所述电源来执行所述重置操作。
10.一种通信系统,包括:
近场通信NFC终端;以及
移动无线通信设备,被配置为与所述NFC终端进行通信,并且包括:
无线收发机,
处理器,与所述无线收发机相连,
NFC设备,与所述处理器相连,所述NFC设备包括:
NFC控制器,
NFC收发机,与所述NFC控制器相连,以及
第一存储器,与所述NFC控制器相连并嵌入所述NFC设备内,所述第一存储器被配置为存储用于与所述NFC终端进行通信的至少一个第一应用;以及
第二存储器,与所述处理器相连,其中所述第二存储器是通用集成电路卡UICC的一部分,并被配置为存储至少一个第二应用;
所述处理器被配置为基于安全条件执行以下步骤:禁用所述NFC收发机;禁止对所述至少一个第一应用的访问;擦除所述至少一个第二应用;执行重置操作;以及在禁用所述NFC收发机和执行所述重置操作二者之后,从安全服务器接收信号并因此擦除所述至少一个第一应用。
11.根据权利要求10所述的通信系统,其中,所述第一存储器包括安全元件。
12.根据权利要求10所述的通信系统,其中,所述处理器被进一步配置为:在从所述第一存储器擦除所述至少一个第一应用之后,启用对所述NFC收发机的访问。
13.根据权利要求10所述的通信系统,还包括:安全服务器,被配置为经由所述无线收发机与所述移动无线通信设备进行通信,并被配置为指示所述处理器基于与所述安全服务器的通信来擦除所述至少一个第一应用。
14.一种用于移动无线通信设备的通信方法,所述移动无线通信设备包括无线收发机、与所述无线收发机相连的处理器、与所述处理器相连的近场通信NFC设备,所述NFC设备包括NFC控制器、与所述NFC控制器相连的NFC收发机、以及与所述NFC控制器相连并嵌入所述NFC设备内并被配置为存储至少一个第一应用的第一存储器,所述移动无线通信设备还包括被配置为存储第二应用的第二存储器,其中所述第二存储器是通用集成电路卡UICC的一部分,所述方法包括,基于安全条件:
使用所述处理器禁用所述NFC收发机;
使用所述处理器禁止对所述至少一个第一应用的访问;
使用所述处理器擦除所述第二应用;
使用所述处理器执行重置操作;以及
使用所述处理器,在使用所述处理器禁用所述NFC收发机和执行所述重置操作二者之后,从安全服务器接收信号并因此擦除所述至少一个第一应用。
15.根据权利要求14所述的方法,其中,使用所述处理器执行重置操作包括:使用所述处理器,在所述擦除所述第二应用之后,执行所述重置操作。
16.根据权利要求14所述的方法,其中,所述第一存储器包括安全元件。
17.根据权利要求14所述的方法,还包括:使用所述处理器,在擦除所述至少一个第一应用之后,启用对所述NFC收发机的访问。
18.根据权利要求14所述的方法,其中,使用所述处理器擦除所述至少一个第一应用包括:使用所述处理器,在执行所述重置操作之后,基于经由所述无线收发机的通信,擦除所述至少一个第一应用。
19.根据权利要求14所述的方法,还包括:使用所述处理器通过至少选择性地禁用与所述处理器相连的电源来执行所述重置操作。
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