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. 21, 2011
Filed:
Jan. 06, 2005
Gregory Gordon Rose, San Diego, CA (US);
James Semple, London, GB;
Roy Franklin Quick, Jr., San Diego, CA (US);
Philip Michael Hawkes, Burwood, AU;
Gregory Gordon Rose, San Diego, CA (US);
James Semple, London, GB;
Roy Franklin Quick, Jr., San Diego, CA (US);
Philip Michael Hawkes, Burwood, AU;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An authentication system is disclosed. The authentication system includes a content provider configured to distribute encrypted content, wherein the encrypted content is generated using a content key, and a client having a symmetric key and configured to store the encrypted content received from the content provider and issue a request to the content provider, wherein the request includes a cryptographic function configured to have the symmetric key and the encrypted content as input, wherein the content provider is further configured to verify the client via the request to ensure that the client has received the encrypted content.