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Power Analysis on RSM Schemes in Cryptographic Chips

机译:密码芯片中RSM方案的功耗分析

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The lightweight mask scheme is a new tendency of the mask countermeasures in Cryptographic Chips. RSM is a lightweight scheme with high security and low cost. With RSM scheme, we carry out a cryptanalysis on DPA Contest V4 and propose several profiled and non-profiled power analyses against the RSM and RSM-Like schemes. Furthermore, we propose MCPA, which is based on the cluster model to classify the power/EM traces according to the value of different mask bytes. MCPA only relies on the types of the mask sequences. The results of experiments on the reference traces show that our analysis is effective. We could recover the mask sequence and the round-key for the first round in AES-256 with about 100 power/EM traces. We also give some suggestions on the possible improvement of the RSM scheme to destroy the condition of SCA with different implementations.
机译:轻量级掩膜方案是密码芯片中掩膜对策的一种新趋势。 RSM是具有高安全性和低成本的轻量级方案。使用RSM方案,我们对DPA Contest V4进行了密码分析,并针对RSM和RSM-Like方案提出了一些分析和非分析功率分析。此外,我们提出了MCPA,它基于集群模型,根据不同掩码字节的值对电源/ EM迹线进行分类。 MCPA仅依赖掩码序列的类型。参考迹线上的实验结果表明我们的分析是有效的。我们可以使用大约100条电源/ EM迹线在AES-256中恢复掩码序列和第一轮的密钥。我们还提出了一些可能的建议,以改进RSM方案,以不同的实现方式破坏SCA的条件。

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