[Resource Topic] 2021/1309: Faster Final Exponentiation on the KSS18 Curve

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Title:
Faster Final Exponentiation on the KSS18 Curve

Authors: Shiping Cai, Zhi Hu, Chang-An Zhao

Abstract:

The final exponentiation affects the efficiency of pairing computations especially on pairing-friendly curves with high embedding degree. We propose an efficient method for computing the hard part of the final exponentiation on the KSS18 curve at 192-bit security level. Implementations indicate that the computation of the final exponentiation can be 8.74% faster than the previously fastest result.

ePrint: https://eprint.iacr.org/2021/1309

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