发明名称 |
COUNTERMEASURE METHOD IN A MICROCIRCUIT AND SMART CARD COMPRISING SAID MICROCIRCUIT |
摘要 |
The invention concerns a countermeasure method in a microcircuit comprising a processor capable of performing operations one of which consists in processing at least a secret datum, said microcircuit including at least a non-volatile storage containing the secret datum or data, at least a work storage, said storage units being connected via a bus to said processor. The invention is characterised in that the method comprises injecting on the bus several random data between data derived from operations performed by the processor, said random data being designed to reload or unload the bus randomly. The invention is applicable to smart cards. |
申请公布号 |
WO0184491(A3) |
申请公布日期 |
2002.11.14 |
申请号 |
WO2001FR01196 |
申请日期 |
2001.04.18 |
申请人 |
GEMPLUS;DABBOUS, NORA;NACCACHE, DAVID |
发明人 |
DABBOUS, NORA;NACCACHE, DAVID |
分类号 |
G06K19/073 |
主分类号 |
G06K19/073 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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