System, method and program for off-line user authentication

Information security – Access control or authentication – Network

Reexamination Certificate

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Details

C726S005000, C726S017000, C726S018000, C726S019000, C713S168000, C713S169000, C713S183000, C713S184000, C380S054000, C706S047000

Reexamination Certificate

active

07984491

ABSTRACT:
Disclosed is an off-line user authentication system, which is designed to present a presentation pattern to a user subject to authentication, and apply a one-time-password derivation rule serving as a password to certain pattern elements included in the presentation pattern at specific positions so as to create a one-time password. An off-line authentication client pre-stores a plurality of pattern element sequences each adapted to form a presentation pattern, and a plurality of verification codes created by applying a one-time-password derivation rule to the respective presentation patterns and subjecting the obtained results to a one-way function algorithm. A presentation pattern is created using one selected from the stored pattern element sequences, and presented to a user. A one-time password entered from the user is verified based on a corresponding verification code to perform user authentication. The present invention provides an off-line matrix authentication scheme with enhanced security.

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Udea, et al., “System, Method and Program for Off-Line User Authentication,”, pp. 1-6.
Japanese Office Action: Notification of Reason(s) for Rejection, for application No. JP2006-094782, mailed Apr. 2, 2007.
Taizu Ohnishi & Associates IT Conference, “Learn from Base Technologies-Mobile Management-”, IT Select, Mediaselect Inc., Feb. 1, 2002, pp. 56 to 60.

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