Title:
同一性確認情報付与システム、同一性確認情報付与方法および同一性確認情報付与プログラム
Document Type and Number:
Japanese Patent JP4427340
Kind Code:
B2
Abstract:
To confirm the identity of contents between data printed on paper or the like and electronic data readily and effectively.
When printing the data stored at a database 10, the hash value of the data is calculated by applying a hash function to the data, and the calculated hash value is printed with data as a confirmation code. When confirming the identity of data stored at a printed data 13 and a database 11, the hash value of the data stored at the database 11 is calculated, it is displayed at a display or the like as a confirmation code, and enables a user to visually confirm whether the confirmation code is identical or not.
COPYRIGHT: (C)2005,JPO&NCIPI
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Inventors:
Yasushi Masayuki
Nobuo Kageyama
Naoto Tatsuno
Hiroyuki Muraoka
Satoshi Yamaoka
Toshiya Narita
Yukio Suzuki
Nobuo Kageyama
Naoto Tatsuno
Hiroyuki Muraoka
Satoshi Yamaoka
Toshiya Narita
Yukio Suzuki
Application Number:
JP2004009686A
Publication Date:
March 03, 2010
Filing Date:
January 16, 2004
Export Citation:
Assignee:
Japan Digital Laboratory Co., Ltd.
International Classes:
G06Q10/00; G06Q50/00; G06Q50/10; G06Q50/26; H04L9/32
Domestic Patent References:
| JP7334527A | ||||
| JP56155433A | ||||
| JP2001511544A |
Attorney, Agent or Firm:
Hiroaki Sakai