公开(公告)号：US20080075284A1

公开(公告)日：2008-03-27

申请号：US11923635

申请日：2007-10-24

申请人： Carl Ellison ,  C. Brendan Traw ,  Michael Ripley ,  Gary Graunke

发明人： Carl Ellison ,  C. Brendan Traw ,  Michael Ripley ,  Gary Graunke

IPC分类号： H04N7/167 ,  H04L9/08 ,  H04L9/14

CPC分类号： G11B20/0021 ,  G11B20/00086 ,  G11B20/00188 ,  G11B20/00224 ,  G11B20/00253 ,  G11B20/00362 ,  G11B20/00492 ,  G11B20/00528 ,  H04L9/0825 ,  H04L9/0897 ,  H04L2209/60

摘要： Protected content distribution is accomplished by a first entity generating a set of asymmetric key pairs, creating a plurality of sets of private keys by selecting a combination of private keys from the set of asymmetric key pairs for each created set, and distributing the sets of private keys to playback devices. A second entity produces protected content including encrypted content and a public key media key block, encrypts a symmetric content key with each public key in the set of asymmetric key pairs to form the public key media key block and encrypts a content title with the symmetric content key to form the encrypted content. A playback device stores one set of private keys, receives the protected content, and decrypts and plays the content title stored in the protected content when a selected one of the set of private keys stored by the playback device successfully decrypts the encrypted symmetric content key stored in the public key media key block of the received protected content.

摘要翻译： 受保护的内容分发由生成一组非对称密钥对的第一实体完成，通过从每个创建的集合的非对称密钥对集合中选择私钥的组合来创建多组私钥，并且分发私有密钥集合 播放设备的键。 第二实体产生包括加密内容和公共密钥媒体密钥块的受保护内容，使用非对称密钥对集合中的每个公开密钥对对称内容密钥进行加密，以形成公共密钥媒体密钥块，并加密具有对称内容的内容标题 密钥来形成加密的内容。 回放设备存储一组专用密钥，接收受保护的内容，并且当由重放设备存储的一组专用密钥中的所选择的一个成功地解密存储的加密的对称内容密钥时，解密并播放存储在受保护内容中的内容标题 在接收到的受保护内容的公钥媒体密钥块中。

公开(公告)号：US20070033394A1

公开(公告)日：2007-02-08

申请号：US11582107

申请日：2006-10-16

申请人： Michael Ripley ,  C. Brendan Traw

发明人： Michael Ripley ,  C. Brendan Traw

IPC分类号： H04L9/00

CPC分类号： H04N21/2541 ,  G06F21/10 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00449 ,  H04L9/3268 ,  H04L2209/60 ,  H04N5/913 ,  H04N7/162 ,  H04N7/1675 ,  H04N21/2585 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/835 ,  H04N2005/91364

摘要： A system and method relating to the production and rendering of pre-recorded audiovisual titles, such as movies or other programs sold on digital versatile discs (DVDs), or other digital storage mediums. In at least one embodiment, the present invention is intended to thwart unauthorized mass distribution of titles. Embodiments of the invention may be used to identify the replicator of any given pre-recorded title, to prevent rendering of a title for which the replicator which produced the title is not identified or not licensed, or where the contents of the title have been tampered with, and to revoke rendering by a player device of one or more unauthorized titles originating from a given replicator.

摘要翻译： 与数字多功能光盘（DVD）或其他数字存储介质上出售的电影或其他节目的预录音像标题的制作和呈现有关的系统和方法。 在至少一个实施例中，本发明旨在阻止未授权的标题分发。 本发明的实施例可以用于识别任何给定的预先记录的标题的复制者，以防止产生标题的复制者未被识别或未被许可的标题或标题的内容已经被篡改的标题 并且由玩家设备撤销由给定的复制者产生的一个或多个未经授权的标题的呈现。

公开(公告)号：US20050228988A1

公开(公告)日：2005-10-13

申请号：US10823947

申请日：2004-04-13

申请人： C. Traw ,  Michael Ripley

发明人： C. Traw ,  Michael Ripley

IPC分类号： H04L9/00 ,  H04L9/08

CPC分类号： H04L9/0891 ,  H04L9/083 ,  H04L2209/60

摘要： A system for proactive forced renewal of content protection implementations in devices includes a key generation facility to generate and allocate keys for the devices, and to generate revocation data corresponding to revoked keys in response to at least one of a security compromise and on a periodic basis independent of a security compromise; and a device manufacturer to receive the keys from the key generation facility, to embed the keys in content protection implementations for the devices, to distribute the devices, and to renew the content protection implementations in devices after the devices are distributed, in response to at least one of a security compromise and on a periodic basis independent of a security compromise.

摘要翻译： 用于主动强制更新设备中的内容保护实现的系统包括：密钥生成设备，用于生成和分配设备的密钥，以及响应于安全隐私和周期性基础中的至少一个产生对应于撤销密钥的吊销数据 独立于安全妥协; 以及设备制造商，用于从密钥生成设备接收密钥，将密钥嵌入到用于设备的内容保护实现中，分发设备，以及在设备被分发之后更新设备中的内容保护实现，响应于 至少一个安全妥协，并且在定期的基础上独立于安全妥协。

公开(公告)号：US08121952B2

公开(公告)日：2012-02-21

申请号：US11009272

申请日：2004-12-10

申请人： Bradley Collar ,  Jeffrey Bruce Lotspiech ,  Florian Pestoni ,  Michael Ripley ,  Spencer Stephens

发明人： Bradley Collar ,  Jeffrey Bruce Lotspiech ,  Florian Pestoni ,  Michael Ripley ,  Spencer Stephens

IPC分类号： G06F21/00 ,  H04L9/00 ,  H04N7/167

CPC分类号： G06F21/10

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 title requiring an external permission for decryption, the media player accesses the URL for that title and obtains the permission. The permission may be purchased or provided for free. Secure encryption and transmission of permission 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。 由于增强型媒体播放需要外部解密权限的标题，媒体播放器访问该标题的URL并获得该权限。 许可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安全加密和许可传输。 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：US20060129490A1

公开(公告)日：2006-06-15

申请号：US11009272

申请日：2004-12-10

申请人： Bradley Collar ,  Jeffrey Bruce Lotspiech ,  Florian Pestoni ,  Michael Ripley ,  Spencer Stephens

发明人： Bradley Collar ,  Jeffrey Bruce Lotspiech ,  Florian Pestoni ,  Michael Ripley ,  Spencer Stephens

IPC分类号： G06F17/60

CPC分类号： G06F21/10

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 title requiring an external permission for decryption, the media player accesses the URL for that title and obtains the permission. The permission may be purchased or provided for free. Secure encryption and transmission of permission 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。 由于增强型媒体播放需要外部解密权限的标题，媒体播放器访问该标题的URL并获得该权限。 许可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安全加密和许可传输。 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：US20050053238A1

公开(公告)日：2005-03-10

申请号：US10655710

申请日：2003-09-04

申请人： Michael Ripley

发明人： Michael Ripley

IPC分类号： H04N5/913 ,  H04N7/167

CPC分类号： H04N21/4325 ,  H04N5/913 ,  H04N21/4334 ,  H04N21/44008 ,  H04N21/8358 ,  H04N2005/91335 ,  H04N2005/91364

摘要： Detection of watermarks in digital content by a system having a recording device and a playback device may be accomplished in such as a way as to improve the interoperability of the recording and playback devices. In one embodiment, a recording device having a first watermark detection component of a first sensitivity for detecting the watermark in digital content, interoperates with a playback device having a second watermark detection component of a second sensitivity for detecting the watermark in a digital content recording made by the recording device; such that the first sensitivity is more sensitive than the second sensitivity.

摘要翻译： 通过具有记录装置和重放装置的系统检测数字内容中的水印可以以提高记录和重放装置的互操作性的方式来实现。 在一个实施例中，具有用于检测数字内容中的水印的第一灵敏度的第一水印检测分量的记录装置与具有用于在数字内容记录中检测水印的第二灵敏度的第二水印检测分量的回放装置互操作 由记录装置; 使得第一灵敏度比第二灵敏度更敏感。