Seiichi Matsuda Naoki Kanayama Florian Hess Eiji Okamoto Optimised Versions of the Ate and Twisted Ate Pairings. 1660-1667 2009 92-A IEICE Transactions 7 http://search.ieice.org/bin/summary.php?id=e92-a_7_1660&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#MatsudaKHO09