Theodoulos Garefalakis The generalized Weil pairing and the discrete logarithm problem on elliptic curves. 59-72 2004 321 Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.tcs.2003.06.002 db/journals/tcs/tcs321.html#Garefalakis04