Katsuyuki Okeya Tsuyoshi Takagi SCA-Resistant and Fast Elliptic Scalar Multiplication Based on wNAF. 75-84 http://search.ieice.org/bin/summary.php?id=e87-a_1_75&category=D&year=2004&lang=E&abst= 2004 87-A IEICE Transactions 1 db/journals/ieicet/ieicet87a.html#OkeyaT04