SeongHan Shin Kazukuni Kobara Hideki Imai Very-Efficient Anonymous Password-Authenticated Key Exchange and Its Extensions. 149-158 2009 AAECC http://dx.doi.org/10.1007/978-3-642-02181-7_16 conf/aaecc/2009 db/conf/aaecc/aaecc2009.html#ShinKI09