Liaw, H.-T.H.-T.LiawCHIN-LAUNG LEI2020-06-112020-06-111995https://scholars.lib.ntu.edu.tw/handle/123456789/501405An efficient password authentication scheme based on a unit circlejournal article10.1080/0161-1195918838722-s2.0-0037724292https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037724292&doi=10.1080%2f0161-119591883872&partnerID=40&md5=b93e0e9c758615bab147b02dfbd6ad0d