发明名称 |
METHOD AND DEVICE FOR PROTECTING AGAINST FAULT ATTACK(S) AN ELECTRONIC DEVICE USING A CACHE MEMORY |
摘要 |
<p>A method is intended for protecting against fault attack(s) an electronic device (ED) comprising hardware and software capable of executing a sensitive process (SP) using a cache memory (CM) and implementing redundancy checks, said method comprising at least a step (i) during which said cache memory (CM) is filled with a first value originating from an external memory (EM), a step (ii) during which said first value is read into said cache memory (CM) and a step (iii) implementing at least a redundancy check, characterized in that it further comprises a fundamental step to guarantee that any redundant reading inside the redundancy check will extract a value from cache memory (CM) which is numerically equal to the genuine value in the external memory (EM).</p> |
申请公布号 |
EP2877957(A1) |
申请公布日期 |
2015.06.03 |
申请号 |
EP20130739694 |
申请日期 |
2013.07.19 |
申请人 |
GEMALTO SA |
发明人 |
GAUTERON, LAURENT;VILLEGAS, KARINE |
分类号 |
G06F21/79;G06F12/08;G06F12/14;G06F21/55;G06F21/77 |
主分类号 |
G06F21/79 |
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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