Semiconductor memory card
    82.
    发明授权
    Semiconductor memory card 有权
    半导体存储卡

    公开(公告)号:US06606707B1

    公开(公告)日:2003-08-12

    申请号:US09557872

    申请日:2000-04-24

    IPC分类号: H04L900

    摘要: A semiconductor memory card comprising a control IC 302, a flash memory 303, and a ROM 304. The ROM 304 holds information such as a medium ID 341 unique to the semiconductor memory card. The flash memory 303 includes an authentication memory 332 and a non-authentication memory 331. The authentication memory 332 can be accessed only by external devices which have been affirmatively authenticated. The non-authentication memory 331 can be accessed by external devices whether the external devices have been affirmatively authenticated or not. The control IC 302 includes control units 325 and 326, an authentication unit 321 and the like. The control units 325 and 326 control accesses to the authentication memory 332 and the non-authentication memory 331, respectively. The authentication unit 321 executes a mutual authentication with an external device.

    摘要翻译: 包括控制IC302,闪速存储器303和ROM304的半导体存储卡.ROM 304保存诸如半导体存储卡唯一的介质ID 341之类的信息。 闪速存储器303包括认证存储器332和非验证存储器331.认证存储器332可以仅被已被肯定认证的外部设备访问。 外部设备可以访问非认证存储器331,无论外部设备是否被肯定认证。 控制IC302包括控制单元325和326,认证单元321等。 控制单元325和326分别控制对认证存储器332和非验证存储器331的访问。 认证单元321执行与外部设备的相互认证。