REPO

Memoirs of the Faculty of Engineering, Okayama University volume47
2013-01 発行

Lazy Random Walk Efficient for Pollard’s Rho Method Attacking on G3 over Barreto-Naehrig Curve (Corrected)

Nekado, Kenta
Takai, Yusuke
Publication Date
2013-01
Abstract
Pairing–based cryptosystems are well implemented with Ate–type pairing over Barreto–Naehrig (BN) curve. Then, for instance, their securities depend on the difficulty of Discrete Logarithm Problem (DLP) on the so–denoted G3 over BN curve. This paper, in order to faster solve the DLP, first proposes to utilize Gauss period Normal Basis (GNB) for Pollard’s rho method, and then considers to accelerate the solving by an adoption of lazy random walk, namely tag tracing technique proposed by Cheon et al.
ISSN
1349-6115
NCID
AA12014085
NAID