認証システム - Toppan Forms Co., Ltd.

Title:

認証システム

Document Type and Number:

Japanese Patent JP5377204

Kind Code:

B2

Abstract:

To improve security in an authentication system for performing authentication by optically reading an identification code displayed on an information display medium.

The identification code to be displayed on a display part 11 of an ID card 10 to perform the authentication is calculated by logic peculiar to the ID card 10 and a coefficient corresponding to time when a S/W 12 of the ID card 10 is depressed, an authenticating identification code is calculated by logic peculiar to the ID card 10 and a coefficient corresponding to time when a S/W 24 of an authentication device 20 is depressed in the authentication device 20, too, and the authentication is performed by collating the authenticating identification code and the identification code displayed on the IC card 10.

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Inventors:

Yusuke bath light

Application Number:

JP2009227365A

Publication Date:

December 25, 2013

Filing Date:

September 30, 2009

Export Citation:

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Assignee:

Toppan Forms Co., Ltd.

International Classes:

G06F21/31; G06F21/34; G06F21/35; G06K17/00; G06K19/07; G06K19/10; H04L9/32

Domestic Patent References:

JP9502038A
JP5180963A
JP10121807A
JP63024384A
JP2002259344A

Attorney, Agent or Firm:

Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata

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