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11. 发明公开

EP3968564A1 DEVICE FOR GENERATING AT LEAST ONE CRYPTOGRAPHIC KEY, CORRESPONDING METHODS AND COMPUTER PROGRAM PRODUCTS 审中-公开
公开(公告)号：EP3968564A1
公开(公告)日：2022-03-16
申请号：EP20195584.6
申请日：2020-09-10
申请人： Nagravision S.A.
发明人： MACCHETTI, Marco , PERRINE, Jerome , HUNACEK, Didier
IPC分类号： H04L9/08 , G09C1/00
摘要： A device (100) is proposed for generating at least one cryptographic key (Keu_Partl, Key_Part2, RootKey) by implementing:
- selecting at least three input data selected among, on one hand, a predetermined data and, on the other hand, a function of at least one piece of data having a type belonging to the group comprising:
- a physical unclonable type, corresponding to physical unclonable function data (ID, PUF);
- a hardwired type, corresponding to data hardwired within said device (GK, Soc_Key); and
- a software type, corresponding to software data (Seg_Partl, Seg_Part2),

- assembling the at least three input data to produce an assembled input data;
- applying the assembled input data into a cryptographic element to produce a cryptographic key.

12. 发明公开

EP3815296A1 CRYPTOGRAPHIC KEY CONFIGURATION USING PHYSICAL UNCLONABLE FUNCTION 审中-实审转让
公开(公告)号：EP3815296A1
公开(公告)日：2021-05-05
申请号：EP19732637.4
申请日：2019-06-21
申请人： Nagravision S.A.
发明人： HUNACEK, Didier , MACCHETTI, Marco , PERRINE, Jerome
IPC分类号： H04L9/32 , H04L9/08

13. 发明公开

EP3459203A1 METHOD AND DEVICE TO PROTECT A CRYPTOGRAPHIC EXPONENT 有权
公开(公告)号：EP3459203A1
公开(公告)日：2019-03-27
申请号：EP17723417.6
申请日：2017-05-18
申请人： Nagravision S.A.
发明人： MACCHETTI, Marco , VILLEGAS, Karine
IPC分类号： H04L9/30 , H04L9/00

14. 发明公开

EP3304737A1 METHOD FOR GENERATING A VALUE INHERENT TO AN ELECTRONIC CIRCUIT, ELECTRONIC CIRCUIT GENERATING THIS VALUE AND METHOD FOR USING SUCH A VALUE 有权
标题翻译：用于生成电子电路固有值的方法，生成该值的电子电路和使用该值的方法
公开(公告)号：EP3304737A1
公开(公告)日：2018-04-11
申请号：EP16727355.6
申请日：2016-05-26
申请人： Nagravision S.A.
发明人： MACCHETTI, Marco , HAUTIER, Roan , FAVI, Claudio , PERRINE, Jérôme
IPC分类号： H03K3/84 , H04L9/08
摘要： A method for generating a value inherent to an electronic circuit by measuring a physical quantity carried out on components of the electronic circuit, comprising calculating and associating to each component at least one value derived from a series of measurements carried out on said component, the calculating of the at least one value comprising: determining a statistical value from said series of measurements, defining said value derived from the series of measures as being said statistical value or an uncertainty range calculated from said statistical value, forming a collection of invariable pairs of components, selecting, in said collection, pairs so that said values associated to the components of each one of these pairs are spaced from each other by at least a setpoint value, generating said value inherent to the electronic circuit by concatenating the results of comparisons based on at least one of the values associated to the components of each selected pair, and data among which at least one is derived from these values, said results being processed in an invariable order like said values or data relative to these pairs during said comparisons.

15. 发明公开

EP2989803A1 METHOD FOR WATERMARKING MEDIA CONTENT AND SYSTEM FOR IMPLEMENTING THIS METHOD 有权
标题翻译：媒体内容的水MARK MARK用于实施方法和系统
公开(公告)号：EP2989803A1
公开(公告)日：2016-03-02
申请号：EP14716581.5
申请日：2014-04-11
申请人： Nagravision S.A.
发明人： HUNACEK, Didier , SERVET, Patrick , MACCHETTI, Marco
IPC分类号： H04N21/8355 , H04N21/8358 , H04N21/4405 , H04N21/6334
CPC分类号： H04N21/8358 , H04N21/4181 , H04N21/4405 , H04N21/63345 , H04N21/8355
摘要： The present invention refers to a method and a system (20) for watermarking digital media content (1) received by application software (APP) in a form of at least one encrypted sample (15). The digital media content (1) is related to metadata (10) assigned to each sample (15). The latter is encrypted by means of a sample key (Kc'). The metadata (10) comprises first data (11), second data (12) and a digital signature (13) resulting from the signature of said first and second data. The first data (11) comprises at least a content key (Kc) and watermarking metadata (WM) and at least said first data (11) is encrypted by a transport key (KT). The second data (12) comprises an initialization vector (IV) so that the content key (Kc) and the initialization vector (IV) form a unique pair of cryptographic data equivalent to the sample key (Kc'). The application software (APP) communicates with a secure environment (30) in charge of handling said metadata (10). The watermarking of the digital media content (1) is performed by the following steps: - instructing the application software (APP) to extract the metadata (10) from the digital media content (1) before transmitting the metadata (10) to the secure environment (30), - decrypting at least a part of the first data (11) by means of the transport key (KT), - verifying the authentication of said digitally signed data (11, 12) and in the case of positive outcome, then transmitting the content key (Kc) and the initialization vector (IV) to a descrambler (37) and transmitting the watermarking metadata (WM) to a watermarking unit (39), - transmitting the digital media content (1) to the descrambler (37) for descrambling each sample (15) by means of said pair of cryptographic data, - transmitting each descrambled sample (15') to the watermarking unit (39) for digitally marking it by means of at least said watermarking metadata, - transmitting the sample (15', 15") from the watermarking unit (39) to the application software (APP) or to a secure media path for rendering purposes.

16. 发明授权

EP3304849B1 SYSTEMS AND METHODS FOR CONDUCTING SECURE VOIP MULTI-PARTY CALLS 有权转让
公开(公告)号：EP3304849B1
公开(公告)日：2019-07-24
申请号：EP16725843.3
申请日：2016-05-27
申请人： Nagravision S.A.
发明人： FER, François , MACCHETTI, Marco , GAUTERON, Laurent , PERRINE, Jérôme
IPC分类号： H04M7/00 , H04W12/04 , H04W12/08 , G06F16/22 , H04L29/06

17. 发明公开

EP3304849A1 SYSTEMS AND METHODS FOR CONDUCTING SECURE VOIP MULTI-PARTY CALLS 有权转让
标题翻译：用于执行安全VOIP多方呼叫的系统和方法
公开(公告)号：EP3304849A1
公开(公告)日：2018-04-11
申请号：EP16725843.3
申请日：2016-05-27
申请人： Nagravision S.A.
发明人： FER, François , MACCHETTI, Marco , GAUTERON, Laurent , PERRINE, Jérôme
IPC分类号： H04L29/06
CPC分类号： H04L65/1006 , G06F16/22 , H04L63/06 , H04L63/065 , H04L65/403 , H04L65/605 , H04M7/006 , H04W12/00502 , H04W12/04 , H04W12/08
摘要： System and method for establishing secure conference calls. In one example system, a central conference call server establishes point-to-point connections with accessory devices comprising a secure element and connected to corresponding participant devices. The conference call server includes an interface to a plurality of secure elements configured to perform scrambling and unscrambling of media signals communicated to and from the accessory devices. In another example, one of the participant devices operates as the central conference call server. In other examples, participant devices communicate on a conference call via point-to-point connections between all accessory devices connected to the participant devices. The accessory devices include secure elements for decryption and encryption of media signals communicated between the accessory devices.

18. 发明公开

EP3183588A1 AGING CONTROL OF A SYSTEM ON CHIP 审中-公开
标题翻译：芯片系统老化控制
公开(公告)号：EP3183588A1
公开(公告)日：2017-06-28
申请号：EP15754152.5
申请日：2015-08-18
申请人： Nagravision S.A.
发明人： FAVI, Claudio , MACCHETTI, Marco , OSEN, Karl
IPC分类号： G01R31/28 , G01R31/30 , G01R31/317
CPC分类号： G01R31/2856 , G01R31/3016 , G01R31/31725 , G06F21/577 , G06F21/602 , G06F2221/034
摘要： A method to control aging of a system on chip comprising one or more devices including semiconductor circuit components and at least one aging controller monitoring electrical signals circulating inside the system on chip. The method comprises steps of stressing at least one device of the system on chip by varying hardware parameters related to its operating mode, comparing at least one parameter associated with an electrical signal produced by the at least one device with a reference parameter to determine a difference corresponding to an operating age value of the at least one device, if the operating age value equals or exceeds a threshold age value, determining a stress state value and modifying the operating mode of the at least one device according to the stress state value. A system on chip performing the method is also disclosed.
摘要翻译：一种用于控制芯片上系统的老化的方法，所述芯片上系统包括一个或多个设备，所述一个或多个设备包括半导体电路组件和至少一个老化控制器，所述老化控制器监控片上系统内部循环的电信号。该方法包括以下步骤：通过改变与其工作模式相关的硬件参数来加载片上系统的至少一个设备;将与由至少一个设备产生的电信号相关联的至少一个参数与参考参数进行比较以确定差对应于至少一个设备的运行年龄值，如果运行年龄值等于或超过阈值年龄值，则确定应力状态值并根据应力状态值修改至少一个设备的运行模式。还公开了执行该方法的片上系统以及片上系统中包括的老化控制器。

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