-
公开(公告)号：US07881476B2
公开(公告)日：2011-02-01
申请号：US12417783
申请日：2009-04-03
IPC分类号： H04L9/00
CPC分类号： G11B20/00086 , G11B20/00094 , G11B20/00123 , G11B20/0021 , G11B20/00362 , G11B20/0071 , G11B20/00855 , G11B20/00978 , H04L63/0428 , H04L63/123
摘要： Enhanced multimedia content on physical media interacts with the user through a media player and the Internet. Enhanced multimedia utilizes IDs for pieces of content on the media and a media key block. On the enhanced media is a file with a list of URLs. As the enhanced media plays a section requiring a set of keys for decryption, the media player accesses the URL for that section and obtains the decryption key. The decryption key may be purchased or provided for free. Secure encryption and transmission of these keys is accomplished by broadcast encryption using a media key block. Each media has a unique set of keys that allow the media player to process the media key block; however, each media follows a unique path through the media key block. All legitimate media players obtain the media key; circumvention devices cannot decipher the media key block.
摘要翻译： 物理媒体上的增强型多媒体内容通过媒体播放器和互联网与用户交互。 增强多媒体利用媒体上的内容片段和媒体密钥块的ID。 在增强型媒体上是一个包含URL列表的文件。 由于增强媒体播放需要一组密钥进行解密的部分，媒体播放器访问该部分的URL并获得解密密钥。 解密密钥可以免费购买或提供。 通过使用媒体密钥块的广播加密来实现这些密钥的安全加密和传输。 每个媒体都有一组唯一的密钥，允许媒体播放器处理媒体密钥块; 然而，每个媒体遵循通过媒体密钥块的唯一路径。 所有合法媒体播放器获取媒体密钥; 规避设备不能破译媒体密钥块。
-
公开(公告)号：US20090185688A1
公开(公告)日：2009-07-23
申请号：US12417783
申请日：2009-04-03
IPC分类号： H04L9/06
CPC分类号： G11B20/00086 , G11B20/00094 , G11B20/00123 , G11B20/0021 , G11B20/00362 , G11B20/0071 , G11B20/00855 , G11B20/00978 , H04L63/0428 , H04L63/123
摘要： Enhanced multimedia content on physical media interacts with the user through a media player and the Internet. Enhanced multimedia utilizes IDs for pieces of content on the media and a media key block. On the enhanced media is a file with a list of URLs. As the enhanced media plays a section requiring a set of keys for decryption, the media player accesses the URL for that section and obtains the decryption key. The decryption key may be purchased or provided for free. Secure encryption and transmission of these keys is accomplished by broadcast encryption using a media key block. Each media has a unique set of keys that allow the media player to process the media key block; however, each media follows a unique path through the media key block. All legitimate media players obtain the media key; circumvention devices cannot decipher the media key block.
摘要翻译： 物理媒体上的增强型多媒体内容通过媒体播放器和互联网与用户交互。 增强多媒体利用媒体上的内容片段和媒体密钥块的ID。 在增强型媒体上是一个包含URL列表的文件。 由于增强媒体播放需要一组密钥进行解密的部分，媒体播放器访问该部分的URL并获得解密密钥。 解密密钥可以免费购买或提供。 通过使用媒体密钥块的广播加密来实现这些密钥的安全加密和传输。 每个媒体都有一组唯一的密钥，允许媒体播放器处理媒体密钥块; 然而，每个媒体遵循通过媒体密钥块的唯一路径。 所有合法媒体播放器获取媒体密钥; 规避设备不能破译媒体密钥块。
-
搜索结果
2 条记录 (耗时 0.012 秒)
