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:
May. 01, 2012
Filed:
Apr. 17, 2009
Alan Rouse, Lawrenceville, GA (US);
Paul Christien Bentz, Alpharetta, GA (US);
Alan Rouse, Lawrenceville, GA (US);
Paul Christien Bentz, Alpharetta, GA (US);
Ericsson Television Inc., Duluth, GA (US);
Abstract
A video encryption/decryption scheme is provided allowing an originator of video content to encrypt the video content using a session key, wherein the encrypted content and an encrypted form of the session key are provided to a destination. The session key is encrypted using a long term key value, and the long term key value itself is encrypted using shared secret information that is only stored in the main memory of the originator and destination's systems. The long term key is encrypted, typically by a third party, and provided to the originator and destination systems for encrypting/decrypting the session key. The third party also provides a pass phrase file, which the originator and destination systems can use as input with shared secret information to a certain cryptographic hashing algorithm to encrypt/decrypt the long term key.