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:
Oct. 23, 2018
Filed:
Mar. 09, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Nobuyuki Tonegawa, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 12/58 (2006.01); H04L 29/06 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/006 (2013.01); H04L 9/0825 (2013.01); H04L 51/00 (2013.01); H04L 51/30 (2013.01); H04L 63/045 (2013.01); H04L 63/0823 (2013.01); H04L 2209/60 (2013.01); H04L 2463/062 (2013.01);
Abstract
A communicating apparatus receives at least (i) email data which is encrypted by a content encryption key, (ii) the content encryption key which is encrypted by a public key of the communicating apparatus, and (iii) a public key certificate of the communicating apparatus. The communicating apparatus decrypts the encrypted content encryption key by a private key corresponding to the public key certificate of the communicating apparatus and decrypts the email data by the decrypted content encryption key. And the communicating apparatus prints at least the email data and the public key certificate of the communicating apparatus.