SYSTEM AND METHOD FOR DRM REGIONAL AND TIMEZONE KEY MANAGEMENT
摘要
<p>A cryptographic media stream system for ensuring media stream content is only consumed in authorized regions. The system includes at least one encryption/decryption key source configured to provide at least one of a regional key and a timezone key, where the regional key and the timezone key are globally unique keys, a media encryption engine that receives an unencrypted media stream and encrypts the encrypted media stream, and a media decryption engine that receives the encrypted media stream, and decrypts the encrypted media stream in response to at least one of the regional key and the timezone key.</p>
申请公布号
WO2006091304(A2)
申请公布日期
2006.08.31
申请号
WO2006US02326
申请日期
2006.01.24
申请人
COMCAST CABLE HOLDINGS, LLC;FAHRNY, JAMES, WILLIAM;COMPTON, CHARLES