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:
Apr. 16, 2013
Filed:
Sep. 04, 2012
Jun Shen, Beijing, CN;
Song Song, Beijing, CN;
Pei Sun, Beijing, CN;
Jian Ming Zhang, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A multimedia messaging system for receiving/sending multimedia messages, includes: a wireless LAN; and a MMS gateway. The MMS gateway performs: receiving/sending the multimedia message to/from a MMS user device via the wireless LAN; and encrypting the multimedia message. The encryption is performed by: issuing a certificate to the MMS user device; sending a session ID and a master key encrypted by the MMS gateway's private key to the MMS user device in response to a request of the MMS user device having the certificate; generated a shared secret key using an algorithm combining the master key with the MMS user device's phone number and the session ID; and encrypting the multimedia message using the shared secret key.