发明名称 Verwalten eines Fehlversuchszählers in einem tragbaren Datenträger
摘要 The data medium has a security buffer for storing data that are to be written at least into the non-volatile memory for a restoration process triggered by a restart of the data medium. The method involves writing an entry into the security buffer with a value corresponding to a new counter state after a false try, so that this value is written into the counter during a restoration process, and carrying out the protected process. The false try counter monitors the number of false tries in carrying out a protected process. The data medium has a security buffer for storing data that are to be written at least into the non-volatile memory for a restoration process triggered by a restart of the data medium. The method involves writing an entry into the security buffer with a value corresponding to a new counter state after a false try, so that this value is written into the counter during a restoration process, and carrying out the protected process. Independent claims are also included for the following: (a) a data medium, especially a chip card or module with a processor core for implementing the inventive method (b) and a computer program product for causing a processor core to implement the inventive method.
申请公布号 DE10247794(B4) 申请公布日期 2008.05.08
申请号 DE2002147794 申请日期 2002.10.14
申请人 GIESECKE & DEVRIENT GMBH 发明人 SCHMALZ, FRANK
分类号 G06K19/07;G06F21/00;G07F7/10 主分类号 G06K19/07
代理机构 代理人
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