INFORMATION PROCESSOR AND INFORMATION PROCESSING SYSTEM

Japanese Patent JP2005084864

A

To secure the reliability of information by preventing falsification and modification of changeable information stored on an information carrier.

This information processor includes a fluorescence detection means 101 for applying an electromagnetic wave of a predetermined wavelength range to an information presenting material 91 included in materials composing the information carrier 90 to detect fluorescence radiated from the information presenting material 91; a second information reading means 104 for reading second information stored in an information storage part 92; and a writing means 108 for writing the created second information in the information storage part 92. First information is specified from information about the detection of the fluorescence so as to encrypt the second information using the first information as an encryption key. The writing information inputted is encrypted based on the first information to create the second information, which is then written.

WO/2003/009220	CREDIT CARD WITH CASE
JPH03166995	CARD
WO/2003/096595	METHOD OF MAKING SECURE PERSONAL DATA CARD

FUKUI TOSHIAKI
IKEDA JUNJI

JP2003315189A

March 31, 2005

September 08, 2003

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TAIYO ELECTRIC MFG
IKEDA JUNJI

B42D15/10; G06K7/12; G06K17/00; G06K19/08; G06K19/10; (IPC1-7): G06K17/00; B42D15/10; G06K7/12; G06K19/08; G06K19/10

JP2000322530A	2000-11-24
JP2003248790A	2003-09-05
JP2001211170A	2001-08-03
JP2002019345A	2002-01-23
JP3039252U	1997-07-15
JP2003108894A	2003-04-11

Yasushi Oshima
Shuzo Hinode
Seiji Goto

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