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:
Jun. 05, 2012
Filed:
Dec. 14, 2007
Augustin J. Farrugia, Cupertino, CA (US);
Gianpaolo Fasoli, Palo Alto, CA (US);
Mathieu Ciet, Paris, FR;
Bertrand Mollinier Toublet, Los Gatos, CA (US);
Augustin J. Farrugia, Cupertino, CA (US);
Gianpaolo Fasoli, Palo Alto, CA (US);
Mathieu Ciet, Paris, FR;
Bertrand Mollinier Toublet, Los Gatos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Method and apparatus enabled by computer (or equivalent) hardware and software for protection of content such as audio and video to be downloaded or streamed over a computer network such as the Internet. The content is provided to the user via streaming or downloads in encrypted form. The encryption is such that the content key decryption information is transmitted so that it itself is encrypted to be both device and session unique. That is, the key information can be used only to extract the content decryption key for a particular session and for a particular client device such as an audio or video consumer playing device. This prevents any further use or copying of the content other than in that session and for that particular client. The specificity is accomplished by using a device unique identifier and antireplay information which is session specific for encrypting the content key. A typical application is Internet streaming of audio or video to consumers.