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:
Jul. 30, 2019
Filed:
Mar. 02, 2017
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Okihisa Yoshida, Kawanishi, JP;
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Abstract
The first processing device includes a first communication unit for performing cryptographic communication and plaintext communication, a determination portion for determining whether to set the cryptographic communication, and a communication unit controller. The second processing device includes a second communication unit for performing the cryptographic communication and the plaintext communication with the first communication unit. The second communication unit includes a storage for storing, for each of other ends of communication, encryption key information necessary for encryption up to a predetermined upper limit. When performing the cryptographic communication, the second communication unit performs at least one of encryption and decryption based on an encryption key included in the encryption key information corresponding to the first processing device stored in the storage. After finishing the cryptographic communication, the second communication unit performs processing for deleting, from the storage, the encryption key information corresponding to the first processing device.