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:
Aug. 03, 2021
Filed:
Oct. 02, 2017
Nec Corporation, Tokyo, JP;
Masakazu Ono, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A communication device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: storing device information that is information stored commonly in one or more communication devices; generating clock information representing timing by using a periodic clock signal; selecting at least a part of the device information according to the clock information; generating selection information that is different information for each piece of the clock information from at least a part of the device information selected; generating an encryption key by using at least the clock information and the selection information generated; and executing at least one of encryption processing and decryption processing on communication data by using the encryption key generated.