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IEICE TRANSACTIONS on Fundamentals

Efficient Hybrid GF(2m) Multiplier for All-One Polynomial Using Varied Karatsuba Algorithm

Yu ZHANG, Yin LI

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Summary :

The PCHS (Park-Chang-Hong-Seo) algorithm is a varied Karatsuba algorithm (KA) that utilizes a different splitting strategy with no overlap module. Such an algorithm has been applied to develop efficient hybrid GF(2m) multipliers for irreducible trinomials and pentanomials. However, compared with KA-based hybrid multipliers, these multipliers usually match space complexity but require more gates delay. In this paper, we proposed a new design of hybrid multiplier using PCHS algorithm for irreducible all-one polynomial. The proposed scheme skillfully utilizes redundant representation to combine and simplify the subexpressions computation, which result in a significant speedup of the implementation. As a main contribution, the proposed multiplier has exactly the same space and time complexities compared with the KA-based scheme. It is the first time to show that different splitting strategy for KA also can develop the same efficient multiplier.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E104-A No.3 pp.636-639
Publication Date
2021/03/01
Publicized
2020/09/15
Online ISSN
1745-1337
DOI
10.1587/transfun.2020EAL2074
Type of Manuscript
LETTER
Category
VLSI Design Technology and CAD

Authors

Yu ZHANG
  Xinyang Normal University
Yin LI
  Dongguan University of Technology

Keyword