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United States Patent | 6,983,371 |
Hurtado , et al. | January 3, 2006 |
Briefly according to the present invention, a system, computer readable medium and method to deliver encrypted digital content to from a first system for playing the content to a second system for playing the content. The method on the first user system comprising the steps of: reading from a computer readable medium metadata which has previously been associated with the content; selecting from the metadata associated content to decrypt; establishing a secure connection with an authorization authority, such as a clearinghouse, for decrypting the key used to encrypt the content; receiving a secure container containing the decrypting key for decrypting at least part of the previously encrypted content as permitted; decrypting the content and then encrypting the content with a new encryption key that is generated locally on the end user system.
Inventors: | Hurtado; Marco M. (Boca Raton, FL), Mahlbacher; James C. (Lake Worth, FL), Spagna; Richard L. (Boca Raton, FL) |
Assignee: |
International Business Machines Corporation
(Armonk,
NY)
|
Appl. No.: | 09/711,431 |
Filed: | November 13, 2000 |
Application Number | Filing Date | Patent Number | Issue Date | ||
09376102 | Aug., 1999 | 6611812 | |||
09177096 | Oct., 1998 | 6389538 | |||
09133519 | Aug., 1999 | 6226618 | |||
Current U.S. Class: | 713/189 ; 380/255; 705/44; 705/51; 705/75; 713/190; 726/28 |
Current International Class: | G06F 11/30 (20060101); H04K 1/00 (20060101); H04L 9/00 (20060101); H04L 9/32 (20060101) |
Field of Search: | 713/189,200,190,201 380/255 705/26,44,51,54,75 |
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