データ改ざん検出方法、データ改ざん検出装置及びデータ改ざん検出プログラム

Title:

データ改ざん検出方法、データ改ざん検出装置及びデータ改ざん検出プログラム

Document Type and Number:

Japanese Patent JP4208082

Kind Code:

B2

Abstract:

An inter-record alteration detection code verification unit 36 calculates an inter-record alteration detection code by merging a record alteration detection code stored in a record to read from a database 34 and a record alteration detection code in the immediately previous record so as to generate a code and applying a predetermined hash operation to the generated code. The verification unit verifies whether the calculated inter-record alteration code coincides with the inter-record alteration detection code stored in the record to read. If they coincide with each other, data is determined to be not altered.

Inventors:

Takayuki Matsui

Application Number:

JP2004567533A

Publication Date:

January 14, 2009

Filing Date:

January 30, 2003

Export Citation:

Click for automatic bibliography generation Help