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:
Sep. 15, 2020
Filed:
Jan. 18, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/30 (2006.01); H04L 9/00 (2006.01); H04L 9/08 (2006.01); G09C 1/00 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3073 (2013.01); G09C 1/00 (2013.01); H04L 9/002 (2013.01); H04L 9/008 (2013.01); H04L 9/0825 (2013.01);
Abstract
An encryption device () includes an encryption unit (), a detection element generation unit (), and a transmission unit (). The encryption unit () encrypts a plain text by using one of a pair of keys to generate an encrypted text into which the plain text has been encrypted and which can be subjected to homomorphic computation. The detection element generation unit () generates a detection element E used to detect a change in the encrypted text by using the one key and the encrypted text. The transmission unit () transmits the encrypted text and the detection element.