Importance

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Abstract

There are provided a method for elliptic curve cryptography with countermeasures against simple power analysis and fault injection analysis, and a system thereof. According to an aspect, there is provided a method for elliptic curve cryptography, in which an elliptic curve point operation is performed to generate an elliptic curve code, including: receiving a first point and a second point on the elliptic curve, wherein the first point is P₀=(x₀, y₀) and the second point is P₁=(x₁, y₁); and performing doubling if the first point is the same as the second point, and performing addition if the first point is different from the second point, to thereby obtain a third point, wherein the third point is P₂=P₀+P₁=(x₂, y₂). Accordingly, it is possible to provide countermeasures against a side channel analysis attack.

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First Claim