Yumi Sakemi Yasuyuki Nogami Katsuyuki Okeya Hidehiro Katou Yoshitaka Morikawa Skew Frobenius Map and Efficient Scalar Multiplication for Pairing-Based Cryptography. 226-239 2008 CANS http://dx.doi.org/10.1007/978-3-540-89641-8_16 conf/cans/2008 db/conf/cans/cans2008.html#SakemiNOKM08