发明名称 |
METHOD AND APPARATUS FOR STORING AND RETRIEVING ENCRYPTED PROGRAMMING CONTENT SUCH THAT IT IS ACCESSIBLE TO AUTHORIZED USERS FROM MULTIPLE SET TOP BOXES |
摘要 |
A set top box is provided that includes a receiver/tuner for receiving programming content over a broadband communications network, a secure memory configured to store at least a first cryptography key to be used to encrypt and decrypt the programming content, and a digital storage medium for storing encrypted programming content. The set top box also includes a multimedia processor operationally associated with the receiver/tuner, the secure memory, and the digital storage medium. The multimedia processor is configured to: encrypt programming content using the first cryptography key stored in the secure memory and uniquely associated with the set top box; store the encrypted content on the digital storage medium; encrypt the first cryptography key using an asymmetric public encryption key to form an encrypted first cryptography key; and store the encrypted first cryptography key on the digital storage medium. |
申请公布号 |
EP1966707(A4) |
申请公布日期 |
2010.07.07 |
申请号 |
EP20060847789 |
申请日期 |
2006.12.19 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
STONE, CHRISTOPHER J.;HALGAS, JOSEPH F. |
分类号 |
G06F12/14;H04N7/167 |
主分类号 |
G06F12/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|