6IsobeY, SetoY, KataokaM. Development of personal authentication system using fingerprint with digital signature technologies [C]//Proceedings of the 34th AnnualHawaii International Conference on System Sciences (HICSS234). Maui: Hawaii, 2001: 4039-4047.
7Purdy H, John A. A dual2factor authentication systemfeaturing speaker verification and token technology [C]// Proceedings of the 4th International Conference on Audioand Video2based Biometric Person Authentication (AVB2PA 2003). U K: Guildford, Surrey, 2003: 814-820.
8Andrew Teoh Beng Jin, David Ngo Chek Ling,AlwynGoh. An integrated dual factor authenticator based on theface data and tokenised random number[C]//LNCS 3072. USA ICBA, 2004: 117-123.
