Paper 2007/393
Overlap-free Karatsuba-Ofman Polynomial Multiplication Algorithms
Haining Fan, Jiaguang Sun, Ming Gu, and Kwok-Yan Lam
Abstract
We describe how a simple way to split input operands allows for fast VLSI implementations of subquadratic $GF(2)[x]$ Karatsuba-Ofman multipliers. The theoretical XOR gate delay of the resulting multipliers is reduced significantly. For example, it is reduced by about 33\% and 25\% for $n=2^{t}$ and $n=3^{t}$ $(t>1)$, respectively. To the best of our knowledge, this parameter has never been improved since the original Karatsuba-Ofman algorithm was first used to design $GF(2^n)$ multipliers in 1990.
Note: I received an email from Dr. Ekatherina Karatsuba, A. Karatsuba' daughter, and she told me that the Karatsuba algorithm was found by her father himself. So I added the following information on the 1st page. I am sorry that I have made the following mistake: The first subquadratic integer multiplication algorithm was invented by A.A. Karatsuba himself, not Karatsuba and Ofman. [1]
Metadata
- Available format(s)
-
PDF
- Publication info
- Published elsewhere. IET Information security, vol. 4, no. 1, pp. 8-14, 2010.
- Keywords
- Karatsuba algorithmpolynomial multiplicationsubquadratic space complexity multiplierfinite fieldsGalois fields.
- Contact author(s)
- fhn @ tsinghua edu cn
- History
- 2010-06-28: last of 6 revisions
- 2007-10-14: received
- See all versions
- Short URL
- https://ia.cr/2007/393
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2007/393,
author = {Haining Fan and Jiaguang Sun and Ming Gu and Kwok-Yan Lam},
title = {Overlap-free Karatsuba-Ofman Polynomial Multiplication Algorithms},
howpublished = {Cryptology {ePrint} Archive, Paper 2007/393},
year = {2007},
url = {https://eprint.iacr.org/2007/393}
}
