(54) METHOD OF AUTHENTICATING USER(57) ABSTRACT ACCESS TO
NETWORKSTATIONS A method of authenticating a user access to network Stations is …

(57) ABSTRACT A method for operating a cryptosystem having a user, a registration Station,
and an authentication Station is dis closed. The user has been assigned an active key pair …

SUMMARY OF THE INVENTION A system for authorizing or authenticating users of a
service includes a? rst communication interface With an access communication channel and …

(54) METHOD AND APPARATUS FOR 5,544,246 A 8/1996 Mandelbaum et al......... 380.23
TRANSMITTING AUTHENTCATION 5,550,976 A 8, 1996 Henderson et al..... 395/200.06 …

Provided are method and apparatus for authenticating a pass word of a user terminal. The
method includes: pre-setting, by a user, a password and an identification image for …

The user authentication system according to the present invention comprises a user terminal
for entering information data for user authentication; a mobile phone for decoding a code; a …

The invention relates to a communication method and system using a one time password
(OTP). The communication sys tem includes: a user computer that has an OTP generator for …

An apparatus for authenticating a user for network access in a communication system
comprises: an input module con tained in a Subscriber terminal for receiving and …

(57) ABSTRACT A method of accomplishing tWo-factor user authentication, comprising
providing tWo separate user authentication meth ods, enabling a user to communicate …

A method of authentication between servers in a three party network protocol network
includes first providing at least one network access server (NAS) in communication with at …