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Title:
ANONYMOUS AUTHENTICATION METHOD, ANONYMOUS AUTHENTICATION DEVICE, PROGRAM AND SERVICE PROVIDING METHOD
Document Type and Number:
Japanese Patent JP2006293472
Kind Code:
A
Abstract:

To make it possible to realize an anonymous communication channel for showing a token which is authentication data for anonymous authentication to the other party by a simple technique.

The token is shown to the other party as optical image information. If the image information is decoded, data of original token is obtained, and the anonymous authentication is performed using this. Especially, it is preferable to realize the above with a cell phone equipped with a means to display image information and a camera means to photograph image information.


Inventors:
IMAI HIDEKI
SHIGETOMI RIE
YOSHIMOTO HARUHIRO
Application Number:
JP2005109951A
Publication Date:
October 26, 2006
Filing Date:
April 06, 2005
Export Citation:
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Assignee:
UNIV TOKYO
International Classes:
G06F21/34; G06K7/00; G06K17/00; G06K19/06; H04L9/32
Domestic Patent References:
JP2001222483A2001-08-17
JP2002183769A2002-06-28
JP2002123729A2002-04-26
Attorney, Agent or Firm:
Mitsuru Ito



 
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