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. 17, 2007
Filed:
Dec. 10, 1998
George Gregory Gruse, Lighthouse Point, FL (US);
John J. Dorak, Jr., Boca Raton, FL (US);
Kenneth Louis Milsted, Boynton Beach, FL (US);
George Gregory Gruse, Lighthouse Point, FL (US);
John J. Dorak, Jr., Boca Raton, FL (US);
Kenneth Louis Milsted, Boynton Beach, FL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method provides a collection of data structures and subroutines in a software toolkit, for developing an application for playing digital content data. The method comprises steps of receiving previously encrypted content data encrypted with an encrypted key from an external source; storing the previously encrypted content data in a library; selecting one or more encrypted content data from the library to play; and decrypting each content data selected to be played with its unique encryption key, wherein the decrypting is performed in a tamper-resistant subroutine for deterring unauthorized access to the instructions for decrypting the content data and for deterring unauthorized access to the encryption key.