1
Ueda Yukiya, Saito Tsugune, Tamai Narutomo: User authentication system and its method. Cse, October 11, 2007: JP2007-264839 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide a matrix authentication system for reducing the risk of password leakage.SOLUTION: In this user authentication system for presenting a presentation pattern to a user who is authenticated, and for using a rule to be applied to the element of a specific position includ ...


2
Ueda Yukiya, Saito Tsugune, Tamai Narutomo: Off-line user authentication system, method and program. Cse, October 18, 2007: JP2007-272364 (2 worldwide citation)

PROBLEM TO BE SOLVED: To attain off-line matrix authentication with security.SOLUTION: In the user authentication system in which a presentation pattern is presented to a user to be authenticated, and a derivation rule for generating a one-time password by applying it to an element of a specific pos ...