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Title:
DATE COMMUNICATION SYSTEM, AND PORTABLE MEMORY
Document Type and Number:
WIPO Patent Application WO/2007/099716
Kind Code:
A1
Abstract:
Provided is a data communication system, which comprises a portable memory for generating a random number, a computer for mounting the potable memory, and a server for generating a random number and communicating with the computer. The portable memory shares such a key of cryptograph, while being directly connected with the server, with the server as is generated on the basis of the first random number generated by the portable memory and the second random number generated by the server, so that it can send and receive the data to and from the server while being mounted on the computer.

Inventors:
SUZUKI KATSUHISA (JP)
TATSUNO MASATAKA (JP)
MITANI NATSUKI (JP)
Application Number:
PCT/JP2007/000157
Publication Date:
September 07, 2007
Filing Date:
March 01, 2007
Export Citation:
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Assignee:
BELLWOOD INTERNATIONAL INC (JP)
SUZUKI KATSUHISA (JP)
TATSUNO MASATAKA (JP)
MITANI NATSUKI (JP)
International Classes:
H04L9/10; G06F3/06; G06F12/00; G06F21/80; G09C1/00
Foreign References:
JPH0568033A1993-03-19
JP2005244534A2005-09-08
JPH11249825A1999-09-17
JP2001216546A2001-08-10
JP2005115418A2005-04-28
JP2001236232A2001-08-31
JP2004348475A2004-12-09
JP2005018251A2005-01-20
JP2006018687A2006-01-19
JP2002157586A2002-05-31
JP2000151576A2000-05-30
Attorney, Agent or Firm:
MATSUSHITA, Masahiro (10-18 Higashigotanda 5-chom, Shinagawa-ku Tokyo 22, JP)
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