Title
New left-to-right minimal weight signed-digit radix-r representation
Abstract
Recently, signed-digit radix-r (r=2) representation is used to speed up the scalar multiplication of pairing based cryptosystems. One such representation is wrNAF proposed by Takagi et al. at the international conference on information security 2004 (ISC 2004). This representation is obtained from right to left. In this paper, we present a new signed-digit radix-r representation with the same average weight, that is r-1w(r-1)+1 as the wrNAF. The new representation uses the same digits as the wrNAF but has the advantage that it can be deduced using a left-to-right algorithm. Further, we show that like the wrNAF, the new representation has a minimal number of non-zero digits. Interleaved with the left-to-right scalar multiplication, the new representation can reduce both the time and space complexity of the computation compared to the right-to-left wrNAF.
Year
DOI
Venue
2009
10.1016/j.compeleceng.2008.09.007
Computers & Electrical Engineering
Keywords
Field
DocType
new left-to-right minimal weight,left-to-right algorithm,left-to-right scalar multiplication,scalar multiplication,integer recoding,signed-digit radix-r,average weight,information security,non-adjacent form,signed radix- r representation,new signed-digit radix-r representation,right-to-left wrnaf,left-to-right recoding,pairing based cryptosystems,international conference,new representation,space complexity
Discrete mathematics,Non-adjacent form,Scalar multiplication,Arithmetic,Radix,Pairing,Cryptosystem,Right-to-left,Mathematics,Speedup,Computation
Journal
Volume
Issue
ISSN
35
1
Computers and Electrical Engineering
Citations 
PageRank 
References 
2
0.41
20
Authors
4
Name
Order
Citations
PageRank
Baodong Qin119019.40
Ming Li231.44
Fanyu Kong325121.83
Daxing Li4609.20