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:
Aug. 29, 2007
Kan Ishimoto, Nagoya, JP;
Kan Ishimoto, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
A communication system includes an information processing device and a management device including a challenge input device, an encryption device, and a combination data output device. The challenge input device inputs challenge data output by the information processing device. The encryption device creates combination data including the challenge data and the predetermined data, and encrypts the combination data in units of blocks. The encryption device creates the combination data such that at least one block of the combination data includes both at least a part of the challenge data and at least a part of the predetermined data. The combination data output device outputs the combination data encrypted by the encryption device to the information processing device. The information processing device is provided with a challenge output device, a challenge storage, a combination data input device, a decryption device, and a data utilizing device.