公开(公告)号：US20080263198A1

公开(公告)日：2008-10-23

申请号：US11809480

申请日：2007-06-01

申请人： Olivier Heen ,  Eric Diehl ,  Alain Durand ,  Mohamed Karroumi ,  Nicolas Prigent

发明人： Olivier Heen ,  Eric Diehl ,  Alain Durand ,  Mohamed Karroumi ,  Nicolas Prigent

IPC分类号： G06F15/16 ,  H04L9/06

CPC分类号： H04L63/0869 ,  G06F12/1408 ,  G06F21/445 ,  G06F21/57 ,  G06F21/71 ,  G06F21/725 ,  G06F2221/2129 ,  G06F2221/2137

摘要： A method for discovering emulated clients. A verifier sends a cryptographic challenge C to a client and preferably starts a timer. The client uses a deterministic key search algorithm to find the correct key and returns the result as a number of tries needed. The verifier then stops the timer if this was started and verifies that the result is correct and preferably that the response was timely. Also provided is a verifier.

摘要翻译： 发现仿真客户端的方法。 验证者向客户端发送加密质询C，最好启动定时器。 客户端使用确定性密钥搜索算法找到正确的密钥，并将结果作为所需的尝试次数返回。 验证者然后停止计时器，如果这是启动，并验证结果是正确的，最好是响应是及时的。 还提供了验证者。

公开(公告)号：US09137248B2

公开(公告)日：2015-09-15

申请号：US11809480

申请日：2007-06-01

申请人： Olivier Heen ,  Eric Diehl ,  Alain Durand ,  Mohamed Karroumi ,  Nicolas Prigent

发明人： Olivier Heen ,  Eric Diehl ,  Alain Durand ,  Mohamed Karroumi ,  Nicolas Prigent

IPC分类号： G06F15/173 ,  H04L29/06 ,  G06F21/44 ,  G06F21/71 ,  G06F12/14 ,  G06F21/72 ,  G06F21/57

CPC分类号： H04L63/0869 ,  G06F12/1408 ,  G06F21/445 ,  G06F21/57 ,  G06F21/71 ,  G06F21/725 ,  G06F2221/2129 ,  G06F2221/2137

摘要： A method for discovering emulated clients. A verifier sends a cryptographic challenge C to a client and preferably starts a timer. The client uses a deterministic key search algorithm to find the correct key and returns the result as a number of tries needed. The verifier then stops the timer if this was started and verifies that the result is correct and preferably that the response was timely. Also provided is a verifier.

摘要翻译： 发现仿真客户端的方法。 验证者向客户端发送加密质询C，最好启动定时器。 客户端使用确定性密钥搜索算法找到正确的密钥，并将结果作为所需的尝试次数返回。 验证者然后停止计时器，如果这是启动，并验证结果是正确的，最好是响应是及时的。 还提供了验证者。

公开(公告)号：US08312555B2

公开(公告)日：2012-11-13

申请号：US12227037

申请日：2007-05-04

申请人： Alain Durand ,  Eric Diehl ,  Olivier Heen

发明人： Alain Durand ,  Eric Diehl ,  Olivier Heen

IPC分类号： G06F7/04 ,  G06F11/00 ,  G06F17/30

CPC分类号： H04L63/10 ,  G06F21/31 ,  G06F2221/2129

摘要： A method for service delivery to a client, in which the client selects a service, and establishes a connection with a system server to which it sends an identity associated with the client and an identifier of the service. The system server verifies that the client is authorized to access to the service and that the client is non-emulated. If this is verified, the service is provided to the client. In a preferred embodiment, the service is scrambled content and the system server provides a descrambling key to the client, and instructs a content server to provide the scrambled content to the client. Also claimed are a device, a system, and a system server.

摘要翻译： 一种用于向客户端提供服务的方法，其中客户端选择服务，并建立与发送与客户端相关联的身份的系统服务器的连接和服务的标识符。 系统服务器验证客户端是否有权访问该服务，并且该客户端未被仿真。 如果这被验证，则将该服务提供给客户端。 在优选实施例中，服务是加密内容，并且系统服务器向客户端提供解扰密钥，并指示内容服务器向客户端提供加密内容。 还声称是设备，系统和系统服务器。

公开(公告)号：US20090240938A1

公开(公告)日：2009-09-24

申请号：US12227037

申请日：2007-05-04

申请人： Alain Durand ,  Eric Diehl ,  Olivier Heen

发明人： Alain Durand ,  Eric Diehl ,  Olivier Heen

IPC分类号： G06F21/00 ,  H04L9/32

CPC分类号： H04L63/10 ,  G06F21/31 ,  G06F2221/2129

摘要： A method for service delivery to a client, in which the client selects a service, and establishes a connection with a system server to which it sends an identity associated with the client and an identifier of the service. The system server verifies that the client is authorised to access to the service and that the client is non-emulated. If this is verified, the service is provided to the client. In a preferred embodiment, the service is scrambled content and the system server provides a descrambling key to the client, and instructs a content server to provide the scrambled content to the client. Also claimed are a device, a system, and a system server.

摘要翻译： 一种用于向客户端提供服务的方法，其中客户端选择服务，并建立与发送与客户端相关联的身份的系统服务器的连接和服务的标识符。 系统服务器验证客户端是否有权访问该服务，并且该客户端未被仿真。 如果这被验证，则将该服务提供给客户端。 在优选实施例中，服务是加密内容，并且系统服务器向客户端提供解扰密钥，并指示内容服务器向客户端提供加密内容。 还声称是设备，系统和系统服务器。

公开(公告)号：US09252957B2

公开(公告)日：2016-02-02

申请号：US12736262

申请日：2009-04-07

申请人： Alain Durand ,  Marc Joye ,  Mohamed Karroumi ,  Yan-Mei Tang Talpin

发明人： Alain Durand ,  Marc Joye ,  Mohamed Karroumi ,  Yan-Mei Tang Talpin

IPC分类号： G06F11/30 ,  H04L9/32 ,  H04L9/08

CPC分类号： H04L9/3247 ,  H04L9/0836 ,  H04L2209/60

摘要： A method for distributing content in a content distribution system is disclosed which comprises the steps of: encrypting at a Content Packager a content using a content encryption key to generate an encrypted content; sending the content encryption key to a Licensing Authority; receiving from the Licensing Authority a distribution key containing an encryption of the content decryption key (Kc) for a given set of authorized devices; creating a secure link between the content encryption key (Kc) and the content protected by this content encryption key using a signature of the content; and distributing the encrypted content together with the signature of the content. A method for receiving content distributed according to the above-mentioned method in a device able to play back the content is also disclosed where the content signature is checked before any play back of the content.

摘要翻译： 公开了一种在内容分发系统中分发内容的方法，包括以下步骤：使用内容加密密钥在内容打包机处加密内容以生成加密的内容; 将内容加密密钥发送给授权机构; 从授权机构接收包含对于给定的授权设备集合的内容解密密钥（Kc）的加密的分发密钥; 使用内容的签名在内容加密密钥（Kc）和由该内容加密密钥保护的内容之间建立安全链接; 并且将加密的内容与内容的签名一起分发。 还公开了一种在能够回放内容的设备中接收根据上述方法分发的内容的方法，其中在内容的任何回放之前检查内容签名。

公开(公告)号：US20080040771A1

公开(公告)日：2008-02-14

申请号：US11667216

申请日：2005-11-09

申请人： Yan-Mei Tang Talpin ,  Alain Durand ,  Olivier Heen

发明人： Yan-Mei Tang Talpin ,  Alain Durand ,  Olivier Heen

IPC分类号： H04N7/16

CPC分类号： H04N7/163 ,  H04N21/4367 ,  H04N21/6175 ,  H04N21/8355

摘要： A device for presentation of a signal having an audio-visual content, comprising means for presenting said content, means for connecting to a transmission channel which is external with respect to said device for receiving a signal, and a module for transmission of a signal which is disposed in the same container together with the presentation means, comprising means for storing a first identification information, adapted to receive the signal from the connection means and to transmit said signal to the presentation means only when the first identification information corresponds to a second identification information contained in the signal. A system and method for presenting a signal comprising an audio-visual content are also disclosed.

摘要翻译： 一种用于呈现具有视听内容的信号的装置，包括用于呈现所述内容的装置，用于连接到相对于所述用于接收信号的装置外部的传输信道的装置，以及用于传输信号的模块 与显示装置一起设置在相同的容器中，包括用于存储适于从连接装置接收信号并且仅当第一识别信息对应于第二识别信号时将所述信号发送到呈现装置的第一识别信息的装置 信息中包含的信息。 还公开了一种用于呈现包括视听内容的信号的系统和方法。

公开(公告)号：US08265271B2

公开(公告)日：2012-09-11

申请号：US12312318

申请日：2007-11-06

申请人： Mohamed Karroumi ,  Stephane Onno ,  Alain Durand

发明人： Mohamed Karroumi ,  Stephane Onno ,  Alain Durand

IPC分类号： H04L9/00 ,  H04K1/00 ,  G06F21/00

CPC分类号： H04N7/165 ,  H04N21/234327 ,  H04N21/2347 ,  H04N21/2662 ,  H04N21/4405 ,  H04N21/63345

摘要： The present invention concerns a method and a device for encrypting an encoded scalable enhancement frame sent by an emitter to a receiver, the enhancement frame comprising a plurality of complementary streams ordered in term of quality level, each complementary stream corresponding to a combination of more than one scalability type, where a complementary stream of a lower quality level corresponds to a lower quality on each scalability type, comprising at the level of the emitter the steps of generating a key per complementary stream for encrypting said complementary stream in such a way that all scalability types can be either simultaneously or individually used, said keys being generated in such a way that only the keys of the complementary streams of quality levels lower than the quality level of a complementary stream can be obtained from the key of said complementary stream, and sending the key of a complementary stream corresponding to a required quality level to the receiver, the key permitting a receiver to generate the keys of the complementary streams of the lower quality levels only. The present invention also concerns a method and a device for decrypting a received encoded scalable enhancement frame.

摘要翻译： 本发明涉及一种用于加密由发射器发送到接收机的经编码的可缩放增强帧的方法和装置，所述增强帧包括在质量级别上排序的多个互补流，每个互补流对应于多于 一种可扩展性类型，其中较低质量水平的补充流对应于每种可扩展性类型的较低质量，包括在发射器的级别处产生用于加密所述互补流的每个互补流的密钥的步骤，使得所有 可扩展性类型可以同时或单独使用，所述密钥以这样一种方式生成，即只能从所述互补流的密钥获得质量水平的互补流的密钥低于互补流的质量水平，以及 将对应于所需质量水平的补充流的密钥发送给接收机t 他的密钥允许接收机仅产生较低质量级别的补充流的密钥。 本发明还涉及一种用于解密接收的经编码的可缩放增强帧的方法和装置。

公开(公告)号：US20110016311A1

公开(公告)日：2011-01-20

申请号：US12736262

申请日：2009-04-07

申请人： Alain Durand ,  Marc Joye ,  Mohamed Karroumi ,  Yan-Mei Tang Talpin

发明人： Alain Durand ,  Marc Joye ,  Mohamed Karroumi ,  Yan-Mei Tang Talpin

IPC分类号： H04L9/08

CPC分类号： H04L9/3247 ,  H04L9/0836 ,  H04L2209/60

摘要： A method for distributing content in a content distribution system is disclosed which comprises the steps of: encrypting at a Content Packager a content using a content encryption key to generate an encrypted content; sending the content encryption key to a Licensing Authority; receiving from the Licensing Authority a distribution key containing an encryption of the content decryption key (Kc) for a given set of authorized devices; creating a secure link between the content encryption key (Kc) and the content protected by this content encryption key using a signature of the content; and distributing the encrypted content together with the signature of the content. A method for receiving content distributed according to the above-mentioned method in a device able to play back the content is also disclosed where the content signature is checked before any play back of the content.

摘要翻译： 公开了一种在内容分发系统中分发内容的方法，包括以下步骤：使用内容加密密钥在内容打包机处加密内容以生成加密的内容; 将内容加密密钥发送给授权机构; 从授权机构接收包含对于给定的授权设备集合的内容解密密钥（Kc）的加密的分发密钥; 使用内容的签名在内容加密密钥（Kc）和由该内容加密密钥保护的内容之间建立安全链接; 并且将加密的内容与内容的签名一起分发。 还公开了一种在能够回放内容的设备中接收根据上述方法分发的内容的方法，其中在内容的任何回放之前检查内容签名。

公开(公告)号：US20090217037A1

公开(公告)日：2009-08-27

申请号：US11922441

申请日：2006-06-02

申请人： Olivier Courtay ,  Mohamed Karroumi ,  Alain Durand

发明人： Olivier Courtay ,  Mohamed Karroumi ,  Alain Durand

IPC分类号： H04L9/32 ,  H04L29/06

CPC分类号： H04L69/16 ,  H04L9/3263 ,  H04L9/3271 ,  H04L63/0869 ,  H04L63/126

摘要： In order to provide a secure measurement of Round Trip Time (RTT), the calculation of RTT and the authentication data are separated. A device A sends a message to device B to start the method. Both devices generate a random number and device A waits for device B to finish. Device A sends its random number to B, which answers with its own random number, and device A calculates the RTT. If the RTT is below a certain limit, device A then requires authentication data, which is calculated by device B and sent to device A that verifies the authentication data. The RTT can thus be securely calculated regardless of the calculating resources of device B. Alternate embodiments, a system and devices are also provided.

摘要翻译： 为了提供往返时间（RTT）的安全测量，RTT和验证数据的计算被分离。 设备A向设备B发送消息以启动该方法。 两个设备都产生一个随机数，设备A等待设备B完成。 设备A将其随机数发送到B，其中以自己的随机数进行回答，设备A计算RTT。 如果RTT低于一定限度，则设备A需要由设备B计算并发送到验证认证数据的设备A的认证数据。 因此可以安全地计算RTT，而不管设备B的计算资源如何。也可以提供替代实施例，系统和设备。

公开(公告)号：US20100128873A1

公开(公告)日：2010-05-27

申请号：US12312318

申请日：2007-11-06

申请人： Mohamed Karroumi ,  Stephane Onno ,  Alain Durand

发明人： Mohamed Karroumi ,  Stephane Onno ,  Alain Durand

IPC分类号： H04L9/00

CPC分类号： H04N7/165 ,  H04N21/234327 ,  H04N21/2347 ,  H04N21/2662 ,  H04N21/4405 ,  H04N21/63345

摘要： The present invention concerns a method and a device for encrypting an encoded scalable enhancement frame sent by an emitter to a receiver, the enhancement frame comprising a plurality of complementary streams ordered in term of quality level, each complementary stream corresponding to a combination of more than one scalability type, where a complementary stream of a lower quality level corresponds to a lower quality on each scalability type, comprising at the level of the emitter the steps of generating a key per complementary stream for encrypting said complementary stream in such a way that all scalability types can be either simultaneously or individually used, said keys being generated in such a way that only the keys of the complementary streams of quality levels lower than the quality level of a complementary stream can be obtained from the key of said complementary stream, and sending the key of a complementary stream corresponding to a required quality level to the receiver, the key permitting a receiver to generate the keys of the complementary streams of the lower quality levels only. The present invention also concerns a method and a device for decrypting a received encoded scalable enhancement frame.

摘要翻译： 本发明涉及一种用于加密由发射器发送到接收机的经编码的可缩放增强帧的方法和装置，所述增强帧包括在质量级别上排序的多个互补流，每个互补流对应于多于 一种可扩展性类型，其中较低质量水平的补充流对应于每种可扩展性类型的较低质量，包括在发射器的级别处产生用于加密所述互补流的每个互补流的密钥的步骤，使得所有 可扩展性类型可以同时或单独使用，所述密钥以这样一种方式生成，即只能从所述互补流的密钥获得质量水平的互补流的密钥低于互补流的质量水平，以及 将对应于所需质量水平的补充流的密钥发送给接收机t 他的密钥允许接收机仅产生较低质量级别的补充流的密钥。 本发明还涉及一种用于解密接收的经编码的可缩放增强帧的方法和装置。