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.

Date of Patent:
Dec. 26, 2017

Filed:

Aug. 25, 2016
Applicant:

Adobe Systems Incorporated, San Jose, CA (US);

Inventors:

Viswanathan Swaminathan, Saratoga, CA (US);

Sheng Wei, San Jose, CA (US);

Joseph Donovan Steele, Danville, CA (US);

Assignee:

ADOBE Systems Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/00 (2013.01); G06F 21/10 (2013.01); G06F 21/33 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/061 (2013.01); G06F 21/10 (2013.01); G06F 21/33 (2013.01); H04L 63/0428 (2013.01); H04L 63/0435 (2013.01); H04L 63/0492 (2013.01); H04L 63/06 (2013.01); H04L 63/08 (2013.01); H04L 63/0807 (2013.01); H04L 63/0815 (2013.01); H04L 65/608 (2013.01); H04L 67/02 (2013.01);
Abstract

Techniques are disclosed for secure playback of protected multimedia content on a game console using a secret-less application. An SSO model can be used for client authentication at a key server, which eliminates the need of storing or using any secret information in the client application. Further, an encrypted content key generated by a content packager using a public key can be deployed in the key URI of a playlist file, which is sent to the key server. The key server can be configured to decrypt the content key using a corresponding private key. Further, the content key and unencrypted samples are protected in the game console client application from debugging and replay attacks by using additional security checks at both the client and key server. By storing secret information remotely from the game console and using the SSO model, DRM policies can be enforced on an untrusted client application.


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