CRYPTOLOGIA, vol. 33, no. 4, page. 335 - 342, 2009-01
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, vol. E90A, no. 12, page. 2962 - 2964, 2007-12
IEICE TRANSACTIONS ON COMMUNICATIONS, vol. E88B, no. 4, page. 1647 - 1648, 2005-04