公开(公告)号：US20080130886A1

公开(公告)日：2008-06-05

申请号：US11982234

申请日：2007-10-31

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Matthew T. Carter ,  Peter K. Pearson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Matthew T. Carter ,  Peter K. Pearson

IPC分类号： H04N7/167

CPC分类号： H04L9/0891 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00659 ,  G11B20/00818 ,  G11B20/0084 ,  G11B20/00884 ,  H04L9/3247 ,  H04L2209/603 ,  H04L2209/608 ,  H04N5/913 ,  H04N21/26613 ,  H04N21/4135 ,  H04N21/4181 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/44236 ,  H04N21/4627 ,  H04N21/8355 ,  H04N21/8358 ,  H04N2005/91335 ,  H04N2005/91342

摘要： In an exemplary embodiment, digital content is mastered as a combination of encrypted data and data processing operations that enable use in approved playback environments. Player devices having a processing environment compatible with the content's data processing operations are able to decrypt and play the content. Players can also provide content with basic functions, such as loading data from media, performing network communications, determining playback environment configuration, controlling decryption/playback, and/or performing cryptographic operations using the player's keys. These functions allow the content to implement and enforce its own security policies. If pirates compromise individual players or content titles, new content can be mastered with new security features that block the old attacks. A selective decryption capability can also be provided, enabling on-the-fly watermark insertion so that attacks can be traced back to a particular player. Features to enable migration from legacy formats are also provided.

公开(公告)号：US20110264923A1

公开(公告)日：2011-10-27

申请号：US13175238

申请日：2011-07-01

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： G06F12/14 ,  H04L9/00

CPC分类号： H04N7/1675 ,  G06F21/50 ,  G06F21/62 ,  G06F21/6281 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00659 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/3236 ,  H04L9/3249 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2209/606 ,  H04N21/25816 ,  H04N21/4135 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4405 ,  H04N21/44236 ,  H04N21/8358 ,  H04N2005/91342

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，公开了技术来将责任和控制权从播放器制造者转移到内容作者。 示例性的光盘携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使内容代码从媒体加载数据，执行网络通信，确定播放环境配置，访问安全的非易失性存储，提交数据到CODEC进行输出和/或执行加密操作。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US20080137848A1

公开(公告)日：2008-06-12

申请号：US11982190

申请日：2007-10-31

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： H04N7/167 ,  H04L9/00

CPC分类号： G06F21/10 ,  G06F9/445 ,  G06F21/64 ,  G06Q50/188 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/0844 ,  H04L9/302 ,  H04L9/3236 ,  H04L9/3249 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/60 ,  H04N5/913 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8193 ,  H04N21/8358 ,  H04N2005/91342 ,  H04N2005/91364

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，公开了技术来将责任和控制权从播放器制造者转移到内容作者。 示例性的光盘携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使内容代码从媒体加载数据，执行网络通信，确定播放环境配置，访问安全的非易失性存储，提交数据到CODEC进行输出和/或执行加密操作。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US08055910B2

公开(公告)日：2011-11-08

申请号：US10563793

申请日：2004-07-07

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： G06F11/30 ,  G06F12/14

CPC分类号： G06F21/10 ,  G06F9/445 ,  G06F21/64 ,  G06Q50/188 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/0844 ,  H04L9/302 ,  H04L9/3236 ,  H04L9/3249 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/60 ,  H04N5/913 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8193 ,  H04N21/8358 ,  H04N2005/91342 ,  H04N2005/91364

摘要： Technologies to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disk (200) carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations (225), access secure non-volatile storage, submit data to CODECs for output (250), and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，将作战者的安全责任和控制权转让给内容作者的技术。 示例性光盘（200）携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使得内容代码能够从媒体加载数据，执行网络通信，确定播放环境配置（225），访问安全的非易失性存储，向CODEC提交数据以输出（250）和/或执行加密操作 。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US07987510B2

公开(公告)日：2011-07-26

申请号：US10614765

申请日：2003-07-07

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： G06F7/04

CPC分类号： H04N7/1675 ,  G06F21/50 ,  G06F21/62 ,  G06F21/6281 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00659 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/3236 ,  H04L9/3249 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2209/606 ,  H04N21/25816 ,  H04N21/4135 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4405 ,  H04N21/44236 ,  H04N21/8358 ,  H04N2005/91342

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

公开(公告)号：US20080133938A1

公开(公告)日：2008-06-05

申请号：US11981977

申请日：2007-10-31

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： H04L9/32

CPC分类号： H04N7/1675 ,  G06F21/50 ,  G06F21/62 ,  G06F21/6281 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00659 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/3236 ,  H04L9/3249 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2209/606 ,  H04N21/25816 ,  H04N21/4135 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4405 ,  H04N21/44236 ,  H04N21/8358 ,  H04N2005/91342

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

公开(公告)号：US08949624B2

公开(公告)日：2015-02-03

申请号：US13175238

申请日：2011-07-01

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： G06F21/00 ,  H04N7/167 ,  G06F21/50 ,  G06F21/62 ,  G06F21/78 ,  G11B20/00 ,  H04N21/258 ,  H04N21/41 ,  H04N21/418 ,  H04N21/426 ,  H04N21/4405 ,  H04N21/442 ,  H04N21/8358 ,  H04L9/32 ,  H04N5/913

CPC分类号： H04N7/1675 ,  G06F21/50 ,  G06F21/62 ,  G06F21/6281 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00659 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/3236 ,  H04L9/3249 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2209/606 ,  H04N21/25816 ,  H04N21/4135 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4405 ,  H04N21/44236 ,  H04N21/8358 ,  H04N2005/91342

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，公开了技术来将责任和控制权从播放器制造者转移到内容作者。 示例性的光盘携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使内容代码能够从媒体加载数据，执行网络通信，确定播放环境配置，访问安全的非易失性存储，将数据提交到CODEC进行输出和/或执行加密操作。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US08571993B2

公开(公告)日：2013-10-29

申请号：US13163038

申请日：2011-06-17

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： G06F21/00

CPC分类号： G06F21/10 ,  G06F9/445 ,  G06F21/64 ,  G06Q50/188 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/0844 ,  H04L9/302 ,  H04L9/3236 ,  H04L9/3249 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/60 ,  H04N5/913 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8193 ,  H04N21/8358 ,  H04N2005/91342 ,  H04N2005/91364

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，公开了技术来将责任和控制权从播放器制造者转移到内容作者。 示例性的光盘携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使内容代码能够从媒体加载数据，执行网络通信，确定播放环境配置，访问安全的非易失性存储，将数据提交到CODEC进行输出和/或执行加密操作。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US20110255690A1

公开(公告)日：2011-10-20

申请号：US13163038

申请日：2011-06-17

申请人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

发明人： Paul C. Kocher ,  Joshua M. Jaffe ,  Benjamin C. Jun ,  Carter C. Laren ,  Peter K. Pearson ,  Nathaniel J. Lawson

IPC分类号： H04N7/167

CPC分类号： G06F21/10 ,  G06F9/445 ,  G06F21/64 ,  G06Q50/188 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00449 ,  G11B20/00818 ,  G11B20/00884 ,  H04L9/0844 ,  H04L9/302 ,  H04L9/3236 ,  H04L9/3249 ,  H04L9/3271 ,  H04L2209/56 ,  H04L2209/60 ,  H04N5/913 ,  H04N21/4181 ,  H04N21/42646 ,  H04N21/4325 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/8193 ,  H04N21/8358 ,  H04N2005/91342 ,  H04N2005/91364

摘要： Technologies are disclosed to transfer responsibility and control over security from player makers to content authors by enabling integration of security logic and content. An exemplary optical disc carries an encrypted digital video title combined with data processing operations that implement the title's security policies and decryption processes. Player devices include a processing environment (e.g., a real-time virtual machine), which plays content by interpreting its processing operations. Players also provide procedure calls to enable content code to load data from media, perform network communications, determine playback environment configurations, access secure nonvolatile storage, submit data to CODECs for output, and/or perform cryptographic operations. Content can insert forensic watermarks in decoded output for tracing pirate copies. If pirates compromise a player or title, future content can be mastered with security features that, for example, block the attack, revoke pirated media, or use native code to correct player vulnerabilities.

摘要翻译： 通过实现安全逻辑和内容的集成，公开了技术来将责任和控制权从播放器制造者转移到内容作者。 示例性的光盘携带加密的数字视频标题，与实现标题的安全策略和解密过程的数据处理操作相结合。 播放器设备包括通过解释其处理操作播放内容的处理环境（例如，实时虚拟机）。 播放器还提供程序调用，使内容代码从媒体加载数据，执行网络通信，确定播放环境配置，访问安全的非易失性存储，提交数据到CODEC进行输出和/或执行加密操作。 内容可以在解码输出中插入取证水印，以追踪盗版副本。 如果海盗妥协一个玩家或者标题，那么未来的内容就可以掌握安全功能，例如阻止攻击，撤销盗版媒体或使用本机代码纠正播放器漏洞。

公开(公告)号：US09569628B2

公开(公告)日：2017-02-14

申请号：US11387401

申请日：2006-03-23

申请人： Paul C. Kocher ,  Benjamin C. Jun ,  Joshua M. Jaffe

发明人： Paul C. Kocher ,  Benjamin C. Jun ,  Joshua M. Jaffe

IPC分类号： G06F11/30 ,  G06F21/60 ,  G06F21/10 ,  G06F21/72 ,  G06Q20/36 ,  H04L9/08

CPC分类号： G06F21/602 ,  G06F21/10 ,  G06F21/72 ,  G06F2211/007 ,  G06F2221/0753 ,  G06F2221/2101 ,  G06Q20/367 ,  H04L9/0833 ,  H04L2209/127 ,  H04L2209/603

摘要： To prevent piracy, audiovisual content is encrypted prior to transmission to consumers. A low-cost, high-security cryptographic rights module (such as a smartcard) enables devices such as players/displays to decode such content. Security-critical functions may be performed by the cryptographic module in a manner that allows security compromises to be addressed by upgrading or replacing cryptographic modules, thereby avoiding the need to replace or modify other (typically much higher-cost) components. The security module contains cryptographic keys, which it uses to process rights enablement messages (REMs) and key derivation messages (KDMs). From a REM and KDM, the security module derives key data corresponding to content, uses public key and/or symmetric cryptography to re-encrypt the derived key data for another device, and provides the re-encrypted key data to the decoding device. The decoding device then uses cryptographic values derived from the re-encrypted key data to decrypt the content.

摘要翻译： 为了防止盗版，视听内容在传输给消费者之前被加密。 低成本，高安全性的加密权限模块（如智能卡）可使诸如播放器/显示器等设备解码此类内容。 安全关键功能可以由加密模块以允许通过升级或替换加密模块来解决安全危害的方式来执行，从而避免需要替换或修改其他（通常成本更高的成本）组件。 安全模块包含加密密钥，用于处理权限启用消息（REM）和密钥导出消息（KDM）。 从REM和KDM，安全模块导出与内容对应的密钥数据，使用公开密钥和/或对称密码来对另一设备的导出密钥数据进行重新加密，并将重新加密的密钥数据提供给解码设备。 解码装置然后使用从重新加密的密钥数据导出的加密值来解密内容。