[Resource Topic] 2008/210: Complexity Analysis of a Fast Modular Multiexponentiation Algorithm

Welcome to the resource topic for 2008/210

Title:
Complexity Analysis of a Fast Modular Multiexponentiation Algorithm

Authors: Haimin Jin, Duncan S. Wong, Yinlong Xu

Abstract:

Recently, a fast modular multiexponentiation algorithm for computing A^X B^Y (mod N) was proposed. The authors claimed that on average their algorithm only requires to perform 1.306k modular multiplications (MMs), where k is the bit length of the exponents. This claimed performance is significantly better than all other comparable algorithms, where the best known result by other algorithms achieves 1.503k MMs only. In this paper, we give a formal complexity analysis and show the claimed performance is not true. The actual computational complexity of the algorithm should be 1.556k. This means that the best modular multiexponentiation algorithm based on canonical-sighed-digit technique is still not able to overcome the 1.5k barrier.

ePrint: https://eprint.iacr.org/2008/210

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .