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1.发明授权公开(公告)号：US10356059B2
公开(公告)日：2019-07-16
申请号：US14730807
申请日：2015-06-04
申请人： NAGRAVISION S.A.
发明人： Jerome Perrine , Bernard Benoit , Maurice Van Riek , Osen Karl
摘要： In an embodiment, a communication device receives a request to establish a media session with a remote endpoint. In response to receiving the request, the communication device exchanges media-session control data with the remote endpoint on behalf of a local endpoint to establish the requested media session between the local endpoint and the remote endpoint. The communication device is communicatively connected to the local endpoint via a Personal Area Network (PAN) communication link. The communication device relays media-session payload data between the local and remote endpoints. The media-session payload data (i) is associated with the media session and (ii) is encrypted based on at least one payload-data cryptographic key that is not accessible to the communication device.
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公开(公告)号：US10237305B2
公开(公告)日：2019-03-19
申请号：US15182461
申请日：2016-06-14
申请人： NAGRAVISION S.A.
摘要： Disclosed herein are methods and systems for enabling legal-intercept mode for a targeted secure element. In an embodiment, a method includes embedding a first key-negotiation parameter associated with a target client device into an intercept secure encryption element; configuring an encryption-management device to receive the intercept secure encryption element and to receive a second key-negotiation parameter associated with the target client device and obtained from a service-provider system, the encryption-management device configured to embed the second key-negotiation parameter into the intercept secure encryption element; and providing the intercept secure encryption element to a communications-intercept system configured to obtain intercepted messages associated with the target client device, the intercepted messages comprising session-key-negotiation messages and associated data messages encrypted with a corresponding negotiated session key, wherein the intercept secure encryption element is configured to (i) identify the negotiated session key based on the session-key-negotiation messages and the first and second key-negotiation parameters and (ii) decrypt the data messages with the negotiated session key.
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3.发明申请公开(公告)号：US20160359814A1
公开(公告)日：2016-12-08
申请号：US14730807
申请日：2015-06-04
申请人： NAGRAVISION S.A.
发明人： Jerome Perrine , Bernard Benoit , Maurice Van Riek , Osen Karl
CPC分类号： H04L63/045 , H04L63/0428 , H04L63/061 , H04L65/1006 , H04L65/1069 , H04L65/608 , H04M1/006 , H04M1/2535 , H04M1/6066 , H04W4/80 , H04W12/02
摘要： In an embodiment, a communication device receives a request to establish a media session with a remote endpoint. In response to receiving the request, the communication device exchanges media-session control data with the remote endpoint on behalf of a local endpoint to establish the requested media session between the local endpoint and the remote endpoint. The communication device is communicatively connected to the local endpoint via a Personal Area Network (PAN) communication link. The communication device relays media-session payload data between the local and remote endpoints. The media-session payload data (i) is associated with the media session and (ii) is encrypted based on at least one payload-data cryptographic key that is not accessible to the communication device.
摘要翻译： 在一个实施例中，通信设备接收与远程端点建立媒体会话的请求。 响应于接收到请求，通信设备代表本地端点与远程端点交换媒体会话控制数据，以在本地端点和远程端点之间建立所请求的媒体会话。 通信设备经由个人局域网（PAN）通信链路与本地端点通信地连接。 通信设备在本地和远程端点之间中继媒体会话有效负载数据。 媒体会话有效载荷数据（i）与媒体会话相关联，并且（ii）基于通信设备不可访问的至少一个有效载荷数据密码密钥进行加密。
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公开(公告)号：US09891882B2
公开(公告)日：2018-02-13
申请号：US14727661
申请日：2015-06-01
申请人： NAGRAVISION S.A.
CPC分类号： G06F3/165 , G06F1/1626 , G06F1/1632 , G06F1/1656 , G06F1/1684 , G06F21/83 , G06F2200/1633 , G10L21/0208 , G10L99/00 , H04L63/0428 , H04M1/6066
摘要： An embodiment takes the form of an accessory for attachment to a communication device, the accessory comprising a microphone disposed on the accessory to detect sound, a cryptographic module disposed on the accessory in communication with the microphone to generate encrypted audio data based on the detected sound, a communication interface disposed on the accessory in communication with the cryptographic module configured to convey the encrypted audio data to the communication device, and an audio-sensor inhibitor arranged to be positioned adjacent to a communication-device audio sensor.
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公开(公告)号：US20170238172A1
公开(公告)日：2017-08-17
申请号：US15151224
申请日：2016-05-10
申请人： NAGRAVISION S.A.
CPC分类号： H04W12/02 , G06F21/606 , H04L9/0841 , H04L9/0844 , H04L9/3066 , H04L63/0435 , H04L63/0478 , H04W12/04 , H04W12/06
摘要： Disclosed herein are methods and systems for encrypting communications using a secure element. An embodiment takes the form of a method including the steps of performing a key-exchange procedure with an endpoint via a voice-communication device to obtain a symmetric seed key for a secure voice session with the endpoint; generating first and second symmetric session keys for the secure voice session based on the obtained symmetric seed key; receiving outbound voice packets from the voice-communication device in connection with the secure voice session, each outbound voice packet including a header and an unencrypted payload; using a first symmetric encryption algorithm and the first symmetric session key, followed by a second symmetric encryption algorithm and the second symmetric session key to generate and output twice-encrypted outbound-voice-packet payloads to the voice-communication device for transmission to the endpoint in connection with the secure voice session.
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公开(公告)号：US11630925B2
公开(公告)日：2023-04-18
申请号：US16765511
申请日：2018-11-12
申请人： NAGRAVISION S.A.
IPC分类号： G06F3/048 , G06F21/84 , G06F3/0485 , H04L51/046
摘要： A method of displaying content items, for example message items in a messaging application or service, is disclosed. The method comprises receiving encrypted content items in a chronological sequence; decrypting the content items; causing display of a display sequence, in order of the chronological sequence, of a respective place holder in place of each of the decrypted content items, and, in response to a user input, causing display of the respective content item in place of one or more of the place holders. Each place holder has an appearance of a scrambled version of the respective content item. The display sequence may be contiguous in received items or sent content items may be interleaved with received content items in the display sequence, in which case sent content items may be displayed with place holders in the same way as received items. A corresponding system and corresponding computer readable medium or media are also disclosed.
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公开(公告)号：US10237730B2
公开(公告)日：2019-03-19
申请号：US15151224
申请日：2016-05-10
申请人： NAGRAVISION S.A.
摘要： Disclosed herein are methods and systems for encrypting communications using a secure element. An embodiment takes the form of a method including the steps of performing a key-exchange procedure with an endpoint via a voice-communication device to obtain a symmetric seed key for a secure voice session with the endpoint; generating first and second symmetric session keys for the secure voice session based on the obtained symmetric seed key; receiving outbound voice packets from the voice-communication device in connection with the secure voice session, each outbound voice packet including a header and an unencrypted payload; using a first symmetric encryption algorithm and the first symmetric session key, followed by a second symmetric encryption algorithm and the second symmetric session key to generate and output twice-encrypted outbound-voice-packet payloads to the voice-communication device for transmission to the endpoint in connection with the secure voice session.
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公开(公告)号：US20170237780A1
公开(公告)日：2017-08-17
申请号：US15182461
申请日：2016-06-14
申请人： NAGRAVISION S.A.
CPC分类号： H04L63/306 , H04L9/0816 , H04L9/0838 , H04L63/06 , H04L63/205 , H04L2209/80 , H04W12/04
摘要： Disclosed herein are methods and systems for enabling legal-intercept mode for a targeted secure element. In an embodiment, a method includes embedding a first key-negotiation parameter associated with a target client device into an intercept secure encryption element; configuring an encryption-management device to receive the intercept secure encryption element and to receive a second key-negotiation parameter associated with the target client device and obtained from a service-provider system, the encryption-management device configured to embed the second key-negotiation parameter into the intercept secure encryption element; and providing the intercept secure encryption element to a communications-intercept system configured to obtain intercepted messages associated with the target client device, the intercepted messages comprising session-key-negotiation messages and associated data messages encrypted with a corresponding negotiated session key, wherein the intercept secure encryption element is configured to (i) identify the negotiated session key based on the session-key-negotiation messages and the first and second key-negotiation parameters and (ii) decrypt the data messages with the negotiated session key.
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公开(公告)号：US10649717B2
公开(公告)日：2020-05-12
申请号：US15871829
申请日：2018-01-15
申请人： NAGRAVISION S.A.
IPC分类号： H04B15/02 , H04K1/02 , G06F3/16 , H04M1/60 , H04L29/06 , G10L99/00 , G10L21/0208 , G06F1/16 , G06F21/83 , H04K3/00
摘要： An apparatus includes an audio-sensor inhibitor configured to inhibit detection of sound by an audio sensor of a communication device, and a secure communication interface coupled to the audio-sensor inhibitor, the secure communication interface being configured to transmit encrypted audio data from the secure communication interface to the communication device, wherein the communication interface generates audio data using a secure-interface audio sensor, and generates the encrypted audio data by encrypting the audio data using a cryptographic module.
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公开(公告)号：US20180157460A1
公开(公告)日：2018-06-07
申请号：US15871829
申请日：2018-01-15
申请人： NAGRAVISION S.A.
CPC分类号： G06F3/165 , G06F1/1626 , G06F1/1632 , G06F1/1656 , G06F1/1684 , G06F21/83 , G06F2200/1633 , G10L21/0208 , G10L99/00 , H04L63/0428 , H04M1/6066
摘要： An apparatus includes an audio-sensor inhibitor configured to inhibit detection of sound by an audio sensor of a communication device, and a secure communication interface coupled to the audio-sensor inhibitor, the secure communication interface being configured to transmit encrypted audio data from the secure communication interface to the communication device, wherein the communication interface generates audio data using a secure-interface audio sensor, and generates the encrypted audio data by encrypting the audio data using a cryptographic module.
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