The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2013
Filed:
May. 27, 2011
Jun Sasano, Tokyo-to, JP;
Tomohide Oka, Shizuoka-ken, JP;
Michiaki Konno, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
According to one embodiment, an alteration detecting apparatus includes an input unit, a storage unit, an output unit, and an alteration detecting unit. The input unit inputs a file. The storage unit stores the file. The output unit outputs the file. The alteration detecting unit produces first alteration detection data that is uniquely determined, from the file on the basis of an alteration detection data production process in response to an input of the file, stores the file and the first alteration detection data in the storage unit, produces second alteration detection data that is uniquely determined, from the file stored in the storage unit on the basis of the alteration detection data production process in response to an output request for the file, compares the first alteration detection data with the second alteration detection data and detects alteration of the file on the basis of the compared result.