Side Channel Attack (SCA) differs from traditional mathematic attacks. It gets around of the exhaustive mathematic
calculation and precisely pin to certain points in the cryptographic algorithm to reveal confidential information from the
running crypto-devices. Since the introduction of SCA by Paul Kocher et al [1], it has been considered to be one of the
most critical threats to the resource restricted but security demanding applications, such as wireless sensor networks. In
this paper, we focus our work on the SCA-concerned security verification on WSN (wireless sensor network). A detailed
setup of the platform and an analysis of the results of DPA (power attack) and EMA (electromagnetic attack) is
presented. The setup follows the way of low-cost setup to make effective SCAs. Meanwhile, surveying the weaknesses
of WSNs in resisting SCA attacks, especially for the EM attack. Finally, SCA-Prevention suggestions based on
Differential Security Strategy for the FPGA hardware implementation in WSN will be given, helping to get an improved
compromise between security and cost.
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