Tamper resistance of a digital data processing unit
    22.
    发明授权
    Tamper resistance of a digital data processing unit 有权
    数字数据处理单元的篡改电阻

    公开(公告)号:US08543835B2

    公开(公告)日:2013-09-24

    申请号:US12307931

    申请日:2007-06-27

    IPC分类号: G06F21/00

    摘要: A system for increasing a tamper resistance of a digital data processing unit, comprises a first unit (901) comprising processing means (906) for processing the received digital data in dependence on values looked up in at least one look-up table (916) based on values in the received digital data. The system further comprises a second unit (902) comprising means (912) for computing at least one value for inclusion in the digital data causing the first unit (901) to look up at least one predetermined value in the look-up table (916) when processing the digital data. It comprises an inserter (910) for including the at least one value in the digital data, and an output (908) for transmitting the digital data to the first unit.

    摘要翻译: 一种用于增加数字数据处理单元的防篡改性的系统,包括第一单元(901),其包括处理装置(906),用于根据在至少一个查找表(916)中查找的值来处理接收到的数字数据, 基于接收的数字数据中的值。 该系统还包括第二单元(902),其包括用于计算包含在数字数据中的至少一个值的装置(912),使第一单元(901)在查找表(916)中查找至少一个预定值 )处理数字数据时。 它包括用于将数字数据中的至少一个值包括的插入器(910)和用于将数字数据发送到第一单元的输出(908)。