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    • 1. 发明申请
    • METHOD TO VERIFY THE EXECUTION INTEGRITY OF AN APPLICATION IN A TARGET DEVICE
    • 验证目标设备中应用程序执行完整性的方法
    • WO2017085159A1
    • 2017-05-26
    • PCT/EP2016/077932
    • 2016-11-17
    • NAGRAVISION S.A.
    • WYSEUR, Brecht
    • G06F21/57
    • G06F21/57
    • The present invention concerns the field of software verification, in particular to check whether the run-time integrity of a software application can be demonstrated. It is therefore proposed a method to verify, by a verification server, the execution integrity of an application in a target device wherein the verification server receives an application signature generated from run time application information on the target device, said signature being used to verify the execution integrity of the application in the target device, said application comprising an array of blocks, each block producing a digest, thus producing an array of digests related to the array of blocks, comprising the steps of : - sending to the target device a message comprising a challenge and a first function, said first function defining an aggregation method, said challenge defining an aggregation instruction, - receiving an attestation from the target device, this attestation being generated by the target device by determining for each block, the corresponding digest for said block, aggregating the digests of the blocks according to the aggregation method of the first function and the challenge to produce the attestation related to the application, - applying a second function to the attestation by the verification server, said second function undoing the effect of the challenge thus producing an application signature independent of the challenge, - verifying the execution integrity of the application by comparing the produced application signature with a reference signature.
    • 本发明涉及软件验证领域,具体涉及检查软件应用程序的运行时完整性是否可以被证明。 因此提出了一种由验证服务器验证目标设备中的应用的执行完整性的方法,其中验证服务器接收从目标设备上的运行时间应用信息生成的应用签名,所述签名用于验证 所述应用程序包括块阵列,每​​个块产生摘要,由此产生与块阵列相关的摘要阵列,所述方法包括以下步骤: - 向目标设备发送消息 其包括挑战和第一功能,所述第一功能定义聚集方法,所述挑战定义聚集指令, - 从目标设备接收证明,该证明由目标设备通过为每个块确定相应的摘要以供 所述块根据第一功能的聚合方法聚合块的摘要 以及产生与应用相关的认证的挑战, - 由验证服务器向认证应用第二功能,所述第二功能撤消挑战的效果,从而产生独立于挑战的应用签名, - 验证执行完整性 通过将生成的应用程序签名与参考签名进行比较来生成应用程序。
    • 2. 发明申请
    • METHOD FOR WATERMARKING ENCRYPTED DIGITAL CONTENT, METHOD AND DEVICE FOR RETRIEVING A UNIQUE IDENTIFIER FROM WATERMARKED CONTENT AND CONTENT DISTRIBUTION NETWORK
    • 用于水印加密的数字内容的方法和用于从水印内容和内容分发网络中检索唯一标识符的方法和设备
    • WO2017081177A1
    • 2017-05-18
    • PCT/EP2016/077306
    • 2016-11-10
    • NAGRAVISION S.A.
    • FISCHER, Jean-BernardWYSEUR, Brecht
    • H04N21/8358H04N21/4405H04N21/6334H04N21/8355
    • H04N21/4405H04N21/6334H04N21/8355H04N21/8358
    • A method for watermarking an encrypted digital content stored in a content distribution network is described. The method comprises the steps of: - receiving in the content distribution network, a non watermarked encrypted content and marking metadata, said non watermarked encrypted content being the result of an encryption of a non watermarked clear content by a stream cipher process, said marking metadata indicating locations in the content suitable for a modification of said content; - using a watermark formed of watermark values and corresponding to a unique identifier; and - producing a watermarked encrypted content by combining in the content distribution network, with a combination function, the values forming the watermark with the non watermarked encrypted content in locations indicated by the marking metadata. The description further concerns a method for retrieving a unique identifier from a watermarked clear content, said watermarked clear content being the result of a decryption of an encrypted content watermarked according to the above mentioned method. The description further concerns a content distribution network used for implementing the watermarking method described above. According to another aspect, the description further concerns a device for retrieving a unique identifier from a watermarked clear content, said watermarked clear content being the result of a decryption of an encrypted content watermarked according to the above mentioned method for watermarking a content.
    • 描述了用于对存储在内容分发网络中的加密数字内容进行水印处理的方法。 该方法包括以下步骤:在内容分发网络中接收未加水印的加密内容和标记元数据,所述未加水印的加密内容是通过流密码过程加密未加水印的清晰内容的结果,所述标记元数据 指示内容中适于修改所述内容的位置; - 使用由水印值形成并对应于唯一标识符的水印; 以及 - 通过在内容分发网络中用组合函数组合形成具有未加水印的加密内容的值的水印,在由标记元数据指示的位置中产生加水印的加密内容。 该描述进一步涉及一种用于从加水印的清除内容中检索唯一标识符的方法,所述加水印的清除内容是根据上述方法加密的加密内容的解密的结果。 该描述进一步涉及用于实现上述水印方法的内容分发网络。 根据另一方面,该描述进一步涉及用于从加水印的清晰内容中检索唯一标识符的设备,所述加水印的清晰内容是根据上述用于对内容加水印的方法加水印的加密内容的解密的结果。 p>
    • 3. 发明申请
    • SYSTEM, METHOD AND DISPLAY DEVICE FOR MANAGING THE OCCUPATION OF SHARED SPACES
    • 用于管理共享空间的系统,方法和显示设备
    • WO2017037125A1
    • 2017-03-09
    • PCT/EP2016/070531
    • 2016-08-31
    • SETZA SÀRL
    • MEIER, RogerFRIEDRICH, Andreas P.
    • G06Q10/10G06Q10/06G02F1/139G02F1/141G06F3/14G06Q10/02G06Q10/08G09F9/00G08B5/00G06K15/00
    • G06Q10/109G02F1/1391G02F1/141G06F3/147G06Q10/02G06Q10/0631G06Q10/08G08B5/36G09G2330/022G09G2370/022G09G2370/025G09G2370/042G09G2370/16
    • The invention concerns a system and a method for managing the occupation of shared spaces. The system comprises at least a display device (12) at the shared space, configured to display a status of availability of the shared space, a central server (11) and a first communication means (13) between the display device (12) and said central server (11). The first communication means (13) have an active and an inactive mode, and comprise a bidirectional wireless first communication channel (13'). The first communication means (13) are in inactive mode by default and comprise a first display device communication module (14) placed in the display device (12) and a first server communication module (15) connected to the central server (11), said first display device communication module (14) being switched off when the first communication means (13) is in inactive mode and being switched on when said first communication means (13) is in active mode. The display device (12) comprise a bistable display and activating means (20) of said first communication means (13). The system further comprises a second communication means (16) designed to allow reception by the display devices (12), of messages from the central server (11), said second communication means (16) comprising a second display device communication module (17) placed in the display device (12), and a second server communication module (18) connected to the central server (11). The second display device communication module (17) has a lower power consumption than said first display device communication module (14) when this first display device communication module (14) is switched on. The second display device communication module (17) is part of said activation means (20).
    • 本发明涉及用于管理共享空间占用的系统和方法。 该系统至少包括在共享空间处的显示设备(12),被配置为显示共享空间的可用性状态,中央服务器(11)和第一通信设备(13),位于显示设备(12)和 所述中央服务器(11)。 第一通信装置(13)具有活动和非活动模式,并且包括双向无线第一通信信道(13')。 第一通信装置(13)默认处于非活动模式,并且包括放置在显示设备(12)中的第一显示设备通信模块(14)和连接到中央服务器(11)的第一服务器通信模块(15) 当所述第一通信装置(13)处于非活动模式时,所述第一显示装置通信模块(14)被关闭,并且当所述第一通信装置(13)处于活动模式时被接通。 显示装置(12)包括所述第一通信装置(13)的双稳态显示和激活装置(20)。 该系统还包括被设计为允许显示设备(12)接收来自中央服务器(11)的消息的第二通信装置(16),所述第二通信装置(16)包括第二显示设备通信模块(17) 放置在显示设备(12)中,以及连接到中央服务器(11)的第二服务器通信模块(18)。 当第一显示设备通信模块(14)接通时,第二显示设备通信模块(17)具有比所述第一显示设备通信模块(14)更低的功耗。 第二显示装置通信模块(17)是所述激活装置(20)的一部分。
    • 4. 发明申请
    • METHODS AND SYSTEMS FOR ESTABLISHING AN ENCRYPTED-AUDIO SESSION
    • 建立加密音频会议的方法和系统
    • WO2016193137A1
    • 2016-12-08
    • PCT/EP2016/061975
    • 2016-05-27
    • NAGRAVISION S.A.
    • WENDLING, Bertrand
    • H04W12/02H04K1/00H04M11/06H04L29/06H04N21/414
    • H04W12/02H04B1/3827H04K1/00H04L5/0055H04L29/0602H04M11/066H04N21/41407H04N21/4367H04W4/20H04W4/80H04W76/14
    • An embodiment takes the form of a method carried out by a personal mobile device. The personal mobile device receives a session-request message requesting establishment of an encrypted-audio session with a call-initiating device, responsively presents one or more call-response inquiries via a user interface, and subsequently receives an accessory-unready indication via the user interface. The one or more call-response inquiries include an accessory-status inquiry, and the accessory-unready indication is associated with the presented accessory-status inquiry. In response to receiving the accessory-unready indication, the personal mobile device sends, to the call-initiating device, a request-acknowledgment message that is associated with the session-request message. Subsequent to sending the request-acknowledgment message but before establishing the encrypted-audio session, the personal mobile device makes an accessory-ready determination. In response to making the accessory-ready determination, the personal mobile device establishes the encrypted-audio session.
    • 实施例采用由个人移动设备执行的方法的形式。 个人移动设备接收请求与呼叫发起设备建立加密音频会话的会话请求消息,响应于经由用户界面呈现一个或多个呼叫响应查询,并随后经由用户接收附件未通知的指示 接口。 一个或多个呼叫响应查询包括附件状态查询,并且附件未通知指示与所呈现的附件状态查询相关联。 响应于接收到附件未通知的指示,个人移动设备向呼叫发起设备发送与会话请求消息相关联的请求确认消息。 在发送请求确认消息之后但是在建立加密音频会话之前,个人移动设备进行附件就绪确定。 响应于进行附件就绪确定,个人移动设备建立加密音频会话。
    • 7. 发明申请
    • BLOCK CRYPTOGRAPHIC METHOD FOR ENCRYPTING/DECRYPTING MESSAGES AND CRYPTOGRAPHIC DEVICES FOR IMPLEMENTING THIS METHOD
    • 用于加密/分解消息的块拼接方法和用于实施该方法的拼接装置
    • WO2016087395A1
    • 2016-06-09
    • PCT/EP2015/078115
    • 2015-12-01
    • NAGRAVISION S.A.
    • WYSEUR, Brecht
    • H04L9/06H04L9/32
    • H04L9/0631G06F21/602H04L9/0637H04L9/3242
    • A block cipher method and apparatus using round repetition for providing, from a plaintext message (10), a ciphertext message (50) and a global tag (52) is disclosed. The plaintext message is converted into a plurality of ordered plaintext blocks (11) which are successively processed during a round for computing: - a cryptogram (30) by encrypting input data (20) using a single cryptographic key, said cryptogram comprising a first segment (31) and a second segment (32) - a ciphertext block (51) by performing a first operation (41) using, as operands: said first segment (31) said current plaintext block (11) and said second segment (32). At each next round said input data is newly determined based on the current ciphertext block and an updated reproducible data. The ciphertext message is determined by concatenating the ciphertext blocks and the global tag by a second operation (42) using computed authentication local tags as operands.
    • 公开了一种用于从明文消息(10),密文消息(50)和全局标签(52)提供循环重复的块密码方法和装置。 明文消息被转换成在一轮计算期间被连续处理的多个排序的明文块(11): - 通过使用单个加密密钥加密输入数据(20)的密码(30),所述密码包括第一段 (31)和所述第二段(32)作为操作数执行第一操作(41),使用第一段(31)和第二段(32) - 密文块(51) 。 在下一轮中,基于当前的密文块和更新的可重现数据重新确定所述输入数据。 通过使用计算的认证本地标签作为操作数,通过第二操作(42)连接密文块和全局标签来确定密文消息。
    • 8. 发明申请
    • MULTICAST OF STREAM SELECTION FROM PORTABLE DEVICE
    • 从便携式设备选择流体的多边形
    • WO2015056162A1
    • 2015-04-23
    • PCT/IB2014/065291
    • 2014-10-14
    • NAGRAVISION S.A.
    • CHAKENALLI NANJEGOWDA, Ramachandra
    • H04L29/06H04N21/41H04N21/442H04H60/43H04H60/91
    • H04N21/42221H04H60/31H04H60/66H04L65/4076H04L65/4092H04N21/2408H04N21/25891H04N21/4126
    • To view media, a user may select a media stream by operating a portable device that controls a media presentation device. The portable device may be configured to multicast this stream selection to both the media presentation device and a selection analysis machine. The remote control may have or include both an infrared emitter and a cellular telephone, and the stream selection may be sent both to the media presentation device and to the selection analysis machine. The selection analysis machine may receive and store stream selections over a period of time, and these aggregated stream selections may form all or part of a profile of a user or a group of users who use the media presentation device. This profile may indicate viewing habits and choices of one or more users of the media presentation device, and the selection analysis machine may analyze this profile.
    • 为了查看媒体,用户可以通过操作控制媒体呈现设备的便携式设备来选择媒体流。 便携式设备可以被配置为将该流选择多播到媒体呈现设备和选择分析机。 遥控器可以具有或包括红外发射器和蜂窝电话两者,并且流选择可以被发送到媒体呈现设备和选择分析机。 选择分析机可以在一段时间内接收和存储流选择,并且这些聚合流选择可以形成使用媒体呈现设备的用户或一组用户的简档的全部或部分。 该简档可以指示媒体呈现设备的一个或多个用户的观看习惯和选择,并且选择分析机器可以分析该简档。
    • 9. 发明申请
    • A SYSTEM, DEVICE AND METHOD FOR RENDERING A TARGETED MEDIA CONTENT
    • 用于渲染目标媒体内容的系统,设备和方法
    • WO2014027319A1
    • 2014-02-20
    • PCT/IB2013/056641
    • 2013-08-14
    • SMARDTV S.A.
    • PHILIP, Serge
    • H04N21/44H04N21/81
    • H04N21/44008H04N21/4331H04N21/44016H04N21/812
    • The present invention relates to a system, a device and a method for enforcing playing of targeted media content such as advertising content deemed to be of particular interest to a viewer before the viewer is allowed to view content of his own choosing. The invention may be deployed in a system comprising a media player, a storage device at least for the content he chooses and a conditional access module and makes use of a viewer profile giving an indication of the viewer's preferences based on content he has previously selected for viewing. According to embodiments of the invention, the viewer-selected content is stored and playing of this content is deferred pending obtention of a release signal. The release signal is supplied by the conditional access module on condition that advertising content, selected by the media player based on the viewer's profile, has first been played through.
    • 本发明涉及一种系统,装置和方法,用于在观看者被允许观看自己选择的内容之前,强制播放目标媒体内容,例如被视为特别感兴趣的广告内容。 本发明可以部署在包括媒体播放器,至少为他选择的内容的存储设备和条件访问模块的系统中,并且利用观看者简档,其基于他之前为其选择的内容而选择观看者的偏好 观看。 根据本发明的实施例,存储观众选择的内容,并且在获得释放信号之前延迟该内容的播放。 释放信号由条件访问模块提供,条件是媒体播放器基于观众的简档选择的广告内容首先被播放。
    • 10. 发明申请
    • SYSTEM AND METHOD FOR MEDIA LIBRARY NAVIGATION AND RECOMMENDATION
    • 媒体图书馆导航与推荐系统与方法
    • WO2014002064A1
    • 2014-01-03
    • PCT/IB2013/055315
    • 2013-06-28
    • ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    • ALAHI, AlexandreVANDERGHEYNST, PierreBENZI, Kirell
    • G06F17/30
    • G06F17/30017G06F17/30958
    • The invention relates to a system and method to optimize navigation and recommendation in a distributed network of media libraries. According to the invention, it is proposed a system and a method to assist the selection of media items comprising the steps of: - extracting intrinsic features of the media items having a media reference and storing said media items intrinsic features in association with said media references as graph media item nodes into a database, - calculating for a pair of extracted media items, a similarity value representing a level of similarity between the extracted intrinsic features of the pair of media items, - determining a proximity measurement based on at least said similarity value and at least one user preference parameter, - storing the proximity measurement in association with the respective pair of media references of said media items as graph proximity edges into a database if the similarity value is above a threshold, - establishing a selection path, from a given media item node, by connecting said media item to another media item through the edge having the highest degree of proximity measurement.
    • 本发明涉及一种用于优化媒体库分布式网络中的导航和推荐的系统和方法。 根据本发明,提出了一种辅助媒体选择的系统和方法,包括以下步骤: - 提取具有媒体参考的媒体项目的内在特征,并与所述媒体参考相关联地存储所述媒体内容特征 作为图形媒体项目节点到数据库中, - 计算一对提取的媒体项目,表示提取的该对媒体项目的固有特征之间的相似度级别的相似度值, - 基于至少所述相似性确定接近度测量 值和至少一个用户偏好参数, - 如果所述相似度值高于阈值,则将所述媒体项目的相应对的媒体参考相关联的所述接近度测量与图像接近边缘存储到数据库中, - 建立选择路径,从 通过具有最高pr度的边缘将所述媒体项目连接到另一媒体项目,给定媒体项目节点 ox度测量。