Abstract
Elliptic curve plays an important role in securing critical software applications as it is one of the most powerful and widely utilized encryption algorithms. It is used in many applications such as digital signature schemes. Elliptic curve algorithms are hard to break, however, attackers find another indirect and more efficient methods to estimate secret information behind any secured systems with the help of information leakages so that they can successfully reconstruct critical objects like private keys. These methods are called side- channel attacks. In this paper we propose a software implementation of ECDSA which can counteract cache memory side-channel attack using three techniques, namely, “Fisher Yates” algorithm, volatile memory objects, and thread locking.
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