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Side-channel analysis is a powerful technique. The principle consists in monitoring some side-channel information like the running time, the power consumption, or the electromagnetic radiation. From the monitored data, the attacker tries to deduce the inner-workings of the algorithm and thereby to retrieve some secret information. This paper is aimed to analyze the performance of elliptic curve cryptosystem under side channel attacks. The main advantage of Elliptic curve cryptography is smaller key size, it is mostly used for public key infrastructure, but the side channel analysis is now well understood by the implementer.
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