发明名称 |
POWER ANALYSIS ATTACK COUNTERMEASURE FOR THE ECDSA |
摘要 |
Execution of the ECMQV key agreement algorithm requires determination of an implicit signature, which determination involves arithmetic operations. Some of the arithmetic operations employ a long-term cryptographic key. It is the execution of these arithmetic operations that can make the execution of the ECMQV key agreement algorithm vulnerable to a power analysis attack. In particular, an attacker using a power analysis attack may determine the long-term cryptographic key. By modifying the sequence of operations involved in the determination of the implicit signature and the inputs to those operations, power analysis attacks may no longer be applied to determine the long-term cryptographic key. |
申请公布号 |
EP2119103(A1) |
申请公布日期 |
2009.11.18 |
申请号 |
EP20080733549 |
申请日期 |
2008.03.06 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
EBEID, NEVINE MAURICE NASSIF |
分类号 |
H04L9/00;G06F7/72 |
主分类号 |
H04L9/00 |
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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