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    • 3. 发明申请
    • Portable Storage Device and Method For Exchanging Data
    • 便携式存储设备和交换数据的方法
    • US20080098134A1
    • 2008-04-24
    • US11574513
    • 2005-08-31
    • Victor Martinus Van AchtMartinus Wilhelmus BlumNicolas LambertPierre Hermanus Woerlee
    • Victor Martinus Van AchtMartinus Wilhelmus BlumNicolas LambertPierre Hermanus Woerlee
    • G06F13/18
    • G06F21/78G06F21/35
    • A portable storage device (MC) is disclosed, which comprises a memory (MEM) for storing data (DAT), a data interface (INT) for exchanging data (DAT) between the memory (MEM) and a host device (DEV), radio communication interface (RI) designed for receiving a key (K) from a transponder (T), checking means (COMP) for checking if a key (K) has a predefined value (V, and access inhibit means (SW) for controlling access to the memory (MEM), wherein the access inhibit means (SW) are controlled by the checking means (COMP). Access to the memory (MEM) is only granted if a certain key (K) can be received, which means that a certain transponder (T) has to be in the vicinity of the portable storage device (MC) for granting access. Furthermore, data (DAT) which is transferred from host device (DEV) to memory (MEM) can be encrypted and data (DAT) which is transferred from memory (MEM) to host device (DEV) can be decrypted. In this way for example commonly used memory cards can be secured against unauthorized use.
    • 公开了一种便携式存储设备(MC),其包括用于存储数据(DAT)的存储器(MEM),用于在存储器(MEM)和主机设备(DEV)之间交换数据(DAT)的数据接口(INT) 无线电通信接口(RI),用于从应答器(T)接收密钥(K);检查装置(COMP),用于检查密钥(K)是否具有预定义的值(V,以及用于控制的接入禁止装置 访问存储器(MEM),其中访问禁止装置(SW)由检查装置(COMP)控制。仅当可以接收到某个密钥(K)时才允许访问存储器(MEM),这意味着 某个应答器(T)必须位于便携式存储设备(MC)附近,用于授权访问,此外,可以对从主机设备(DEV)传送到存储器(MEM)的数据(DAT)进行加密和数据( 从存储器(MEM)传送到主机设备(DEV)的DAT)可以被解密,例如可以固定普通的存储卡 授权使用。