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1. 发明申请

US20110093609A1 Sending Secure Media Streams 有权
标题翻译：发送安全媒体流
公开(公告)号：US20110093609A1
公开(公告)日：2011-04-21
申请号：US12999178
申请日：2009-02-20
申请人： Rolf Blom , Yi Cheng , John Mattsson , Mats Näslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , John Mattsson , Mats Näslund , Karl Norrman
IPC分类号： G06F15/16
CPC分类号： H04L65/605 , H04L63/0428 , H04L65/608
摘要： A method and apparatus for sending a first secured media stream having a payload via an intermediate node. The intermediate node receives from a sender the first secured media stream. An end-to-end context identifier and a hop-by-hop context identifier are determined for the first secured media stream, where the hop-by-hop context identifier relates to the intermediate node and the end-to-end identifier relates to the sender. A second secured media stream is generated, which includes at least the payload of the first secured media stream and the context identifiers to identify the first secured media stream. The second secured media stream is sent to a receiving node, and the context identifiers are also sent to the receiving node. The context identifiers are usable by the receiving node to recover the first secured media stream.
摘要翻译：一种用于经由中间节点发送具有有效载荷的第一安全媒体流的方法和装置。中间节点从发送器接收第一安全媒体流。针对第一安全媒体流确定端到端上下文标识符和逐跳上下文标识符，其中逐跳上下文标识符与中间节点相关，并且端到端标识符与发件人。生成第二安全媒体流，其包括至少第一安全媒体流的有效载荷和上下文标识符以识别第一安全媒体流。第二安全媒体流被发送到接收节点，并且上下文标识符也被发送到接收节点。上下文标识符可由接收节点使用以恢复第一安全媒体流。

2. 发明授权

US08539564B2 IP multimedia security 有权
标题翻译： IP多媒体安全
公开(公告)号：US08539564B2
公开(公告)日：2013-09-17
申请号：US13254013
申请日：2009-03-04
申请人： Mats Näslund , Rolf Blom , Yi Cheng , Fredrik Lindholm , Karl Norrman
发明人： Mats Näslund , Rolf Blom , Yi Cheng , Fredrik Lindholm , Karl Norrman
IPC分类号： G06F7/04
CPC分类号： H04L63/06 , H04L9/0844 , H04L2209/80 , H04W12/04
摘要： A method of establishing keys for at least partially securing media plane data exchanged between first and second end users via respective first and second media plane network nodes. The method comprises sending session set-up signalling from said first end point towards said second end point, said session set-up signalling including a session key generated by said first end point. The set-up signalling is intercepted at a first signalling plane network node and a determination made as to whether or not a signalling plane key has already been established for securing the signalling plane between said first end point and said first signalling plane network node. If a signalling plane key has already been established, then a media plane key is derived from that signalling plane key, and the media plane key sent to said first media plane network node for securing the media plane between said first end user and said first media plane network node. If a signalling plane key has not already been established, then an alternative media plane key is derived from said session key and sent to said first media plane network node for securing the media plane between said first end user and said first media plane network node.
摘要翻译：一种建立用于经由相应的第一和第二媒体平面网络节点至少部分地保护在第一和第二终端用户之间交换的媒体平面数据的密钥的方法。该方法包括从所述第一端点向所述第二端点发送会话建立信令，所述会话建立信令包括由所述第一端点产生的会话密钥。建立信令在第一信令平面网络节点被拦截，并且确定信令平面密钥是否已被建立用于在所述第一终端和所述第一信令平面网络节点之间保护信令平面。如果已经建立了信令平面密钥，则从该信令平面密钥导出媒体平面密钥，并且将媒体平面密钥发送到所述第一媒体平面网络节点，以将介质平面固定在所述第一终端用户和所述第一媒体之间平面网络节点。如果还没有建立信令平面密钥，则从所述会话密钥导出替代媒体平面密钥，并将其发送到所述第一媒体平面网络节点，以便在所述第一终端用户和所述第一媒体平面网络节点之间保护媒体平面。

3. 发明申请

US20120198527A1 IP Multimedia Security 有权
标题翻译： IP多媒体安全
公开(公告)号：US20120198527A1
公开(公告)日：2012-08-02
申请号：US13254013
申请日：2009-03-04
申请人： Mats Näslund , Rolf Blom , Yi Cheng , Fredrik Lindholm , Karl Norrman
发明人： Mats Näslund , Rolf Blom , Yi Cheng , Fredrik Lindholm , Karl Norrman
IPC分类号： G06F21/20
CPC分类号： H04L63/06 , H04L9/0844 , H04L2209/80 , H04W12/04
摘要： A method of establishing keys for at least partially securing media plane data exchanged between first and second end users via respective first and second media plane network nodes. The method comprises sending session set-up signalling from said first end point towards said second end point, said session set-up signalling including a session key generated by said first end point. The set-up signalling is intercepted at a first signalling plane network node and a determination made as to whether or not a signalling plane key has already been established for securing the signalling plane between said first end point and said first signalling plane network node. If a signalling plane key has already been established, then a media plane key is derived from that signalling plane key, and the media plane key sent to said first media plane network node for securing the media plane between said first end user and said first media plane network node. If a signalling plane key has not already been established, then an alternative media plane key is derived from said session key and sent to said first media plane network node for securing the media plane between said first end user and said first media plane network node.
摘要翻译：一种建立用于经由相应的第一和第二媒体平面网络节点至少部分地保护在第一和第二终端用户之间交换的媒体平面数据的密钥的方法。该方法包括从所述第一端点向所述第二端点发送会话建立信令，所述会话建立信令包括由所述第一端点产生的会话密钥。建立信令在第一信令平面网络节点被拦截，并且确定信令平面密钥是否已被建立用于在所述第一终端和所述第一信令平面网络节点之间保护信令平面。如果已经建立了信令平面密钥，则从该信令平面密钥导出媒体平面密钥，并且将媒体平面密钥发送到所述第一媒体平面网络节点，以将介质平面固定在所述第一终端用户和所述第一媒体之间平面网络节点。如果还没有建立信令平面密钥，则从所述会话密钥导出替代媒体平面密钥，并将其发送到所述第一媒体平面网络节点，以便在所述第一终端用户和所述第一媒体平面网络节点之间保护媒体平面。

4. 发明授权

US09178696B2 Key management for secure communication 有权
标题翻译：安全通信的密钥管理
公开(公告)号：US09178696B2
公开(公告)日：2015-11-03
申请号：US12744986
申请日：2007-11-30
申请人： Rolf Blom , Yi Cheng , Fredrik Lindholm , John Mattsson , Mats Naslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , Fredrik Lindholm , John Mattsson , Mats Naslund , Karl Norrman
IPC分类号： H04L9/08 , H04L29/06
CPC分类号： H04L9/0838 , H04L9/083 , H04L9/0861 , H04L63/061 , H04L63/062 , H04L63/0884 , H04L65/1016
摘要： A method and arrangement is disclosed for managing session keys for secure communication between a first and at least a second user device in a communications network. The method is characterized being independent of what type of credential each user device implements for security operations. A first user receives from a first key management server keying information and a voucher and generates a first session key. The voucher is forwarded to at least a responding user device that, with support from a second key management server communicating with the first key management server, resolves the voucher and determines a second session keys. First and second session keys are, thereafter, used for secure communication. In one embodiment the communication traverses an intermediary whereby first and second session keys protect communication with respective leg to intermediary.
摘要翻译：公开了一种用于管理用于通信网络中的第一和第二用户设备之间的安全通信的会话密钥的方法和装置。该方法的特征在于独立于每个用户设备为安全操作实现什么类型的凭证。第一用户从第一密钥管理服务器接收密钥信息和凭证并生成第一会话密钥。该凭证被转发到至少一个响应用户设备，在来自与第一密钥管理服务器通信的第二密钥管理服务器的支持下，解决凭证并确定第二会话密钥。此后，第一和第二会话密钥用于安全通信。在一个实施例中，通信遍及中间体，由此第一和第二会话密钥保护与相应的腿到中间的通信。

5. 发明申请

US20100268937A1 KEY MANAGEMENT FOR SECURE COMMUNICATION 有权
标题翻译：安全通信的关键管理
公开(公告)号：US20100268937A1
公开(公告)日：2010-10-21
申请号：US12744986
申请日：2007-11-30
申请人： Rolf Blom , Yi Cheng , Fredrik Lindholm , John Mattsson , Mats Naslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , Fredrik Lindholm , John Mattsson , Mats Naslund , Karl Norrman
IPC分类号： H04L9/32 , H04L29/06 , H04L9/08
CPC分类号： H04L9/0838 , H04L9/083 , H04L9/0861 , H04L63/061 , H04L63/062 , H04L63/0884 , H04L65/1016
摘要： A method and arrangement is disclosed for managing session keys for secure communication between a first and at least a second user device in a communications network. The method is characterized being independent of what type of credential each user device implements for security operations. A first user receives from a first key management server keying information and a voucher and generates a first session key. The voucher is forwarded to at least a responding user device that, with support from a second key management server communicating with the first key management server, resolves the voucher and determines a second session keys. First and second session keys are, thereafter, used for secure communication. In one embodiment the communication traverses an intermediary whereby first and second session keys protect communication with respective leg to intermediary.
摘要翻译：公开了一种用于管理用于通信网络中的第一和第二用户设备之间的安全通信的会话密钥的方法和装置。该方法的特征在于独立于每个用户设备为安全操作实现什么类型的凭证。第一用户从第一密钥管理服务器接收密钥信息和凭证并生成第一会话密钥。该凭证被转发到至少一个响应用户设备，在来自与第一密钥管理服务器通信的第二密钥管理服务器的支持下，解决凭证并确定第二会话密钥。此后，第一和第二会话密钥用于安全通信。在一个实施例中，通信遍及中间体，由此第一和第二会话密钥保护与相应的腿到中间的通信。

6. 发明授权

US08966105B2 Sending secure media streams 有权
标题翻译：发送安全媒体流
公开(公告)号：US08966105B2
公开(公告)日：2015-02-24
申请号：US12999178
申请日：2009-02-20
申请人： Rolf Blom , Yi Cheng , John Mattsson , Mats Nåslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , John Mattsson , Mats Nåslund , Karl Norrman
IPC分类号： G06F15/16 , H04L29/06
CPC分类号： H04L65/605 , H04L63/0428 , H04L65/608
摘要： A method and apparatus for sending a first secured media stream having a payload via an intermediate node. The intermediate node receives from a sender the first secured media stream. An end-to-end context identifier and a hop-by-hop context identifier are determined for the first secured media stream, where the hop-by-hop context identifier relates to the intermediate node and the end-to-end identifier relates to the sender. A second secured media stream is generated, which includes at least the payload of the first secured media stream and the context identifiers to identify the first secured media stream. The second secured media stream is sent to a receiving node, and the context identifiers are also sent to the receiving node. The context identifiers are usable by the receiving node to recover the first secured media stream.
摘要翻译：一种用于经由中间节点发送具有有效载荷的第一安全媒体流的方法和装置。中间节点从发送器接收第一安全媒体流。针对第一安全媒体流确定端到端上下文标识符和逐跳上下文标识符，其中逐跳上下文标识符与中间节点相关，并且端到端标识符与发件人。生成第二安全媒体流，其包括至少第一安全媒体流的有效载荷和上下文标识符以识别第一安全媒体流。第二安全媒体流被发送到接收节点，并且上下文标识符也被发送到接收节点。上下文标识符可由接收节点使用以恢复第一安全媒体流。

7. 发明授权

US08645680B2 Sending media data via an intermediate node 有权
标题翻译：通过中间节点发送媒体数据
公开(公告)号：US08645680B2
公开(公告)日：2014-02-04
申请号：US12997913
申请日：2009-05-06
申请人： Rolf Blom , Yi Cheng , John Mattsson , Mats Naslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , John Mattsson , Mats Naslund , Karl Norrman
IPC分类号： H04L29/06
CPC分类号： H04L65/601 , H04L63/0464 , H04L63/0478 , H04L63/06 , H04L63/123
摘要： A method and apparatus for sending protected media data from a data source node to a client node via an intermediate node. The data source node establishes a first hop-by-hop key to be shared with the intermediate node and an end-to-end key to be shared with the client node. A single security protocol instance is configured and used to trans-protocol form data from a media stream into transformed data using the keys. The transformed data is then sent to the intermediate node. The intermediate node uses the first hop-by-hop key to apply a security processing to the transformed data, and establishes a second hop-by-hop key with the client node. A second transformation is performed on the transformed data using the second hop-by-hop key to produce further transformed media data, which is then sent to the client node. At the client node a single security protocol instance is configured with the second hop-by-hop key and the end-to-end key, which are used to apply further security processing to the transformed media data.
摘要翻译：一种用于经由中间节点将受保护媒体数据从数据源节点发送到客户端节点的方法和装置。数据源节点建立与中间节点共享的第一个逐跳密钥和要与客户机节点共享的端对端密钥。单个安全协议实例被配置并用于使用密钥将媒体流中的数据转换为变换数据。然后将变换的数据发送到中间节点。中间节点使用第一个逐跳密钥对转换的数据应用安全处理，并与客户端节点建立第二个逐跳密钥。使用第二逐跳密钥对经变换的数据执行第二变换以产生进一步转换的媒体数据，然后将其转发到客户端节点。在客户端节点，单个安全协议实例配置有第二个逐跳密钥和端对端密钥，用于对转换的媒体数据应用进一步的安全处理。

8. 发明申请

US20110093698A1 SENDING MEDIA DATA VIA AN INTERMEDIATE NODE 有权
标题翻译：发送媒体数据通过中间节点
公开(公告)号：US20110093698A1
公开(公告)日：2011-04-21
申请号：US12997913
申请日：2009-05-06
申请人： Rolf Blom , Yi Cheng , John Mattsson , Mats Naslund , Karl Norrman
发明人： Rolf Blom , Yi Cheng , John Mattsson , Mats Naslund , Karl Norrman
IPC分类号： H04L9/12
CPC分类号： H04L65/601 , H04L63/0464 , H04L63/0478 , H04L63/06 , H04L63/123
摘要： A method and apparatus for sending protected media data from a data source node to a client node via an intermediate node. The data source node establishes a first hop-by-hop key to be shared with the intermediate node and an end-to-end key to be shared with the client node. A single security protocol instance is configured and used to trans-protocol form data from a media stream into transformed data using the keys. The transformed data is then sent to the intermediate node. The intermediate node uses the first hop-by-hop key to apply a security processing to the transformed data, and establishes a second hop-by-hop key with the client node. A second transformation is performed on the transformed data using the second hop-by-hop key to produce further transformed media data, which is then sent to the client node. At the client node a single security protocol instance is configured with the second hop-by-hop key and the end-to-end key, which are used to apply further security processing to the transformed media data.
摘要翻译：一种用于经由中间节点将受保护媒体数据从数据源节点发送到客户端节点的方法和装置。数据源节点建立与中间节点共享的第一个逐跳密钥和要与客户机节点共享的端对端密钥。单个安全协议实例被配置并用于使用密钥将媒体流中的数据转换为变换数据。然后将变换的数据发送到中间节点。中间节点使用第一个逐跳密钥对转换的数据应用安全处理，并与客户端节点建立第二个逐跳密钥。使用第二逐跳密钥对经变换的数据执行第二变换以产生进一步转换的媒体数据，然后将其转发到客户端节点。在客户端节点，单个安全协议实例配置有第二个逐跳密钥和端对端密钥，用于对转换的媒体数据应用进一步的安全处理。

9. 发明申请

US20130291071A1 Method and Apparatus for Authenticating a Communication Device 有权
标题翻译：用于认证通信设备的方法和设备
公开(公告)号：US20130291071A1
公开(公告)日：2013-10-31
申请号：US13979476
申请日：2011-07-19
申请人： Rolf Blom , Mats Näslund , Karl Norrman
发明人： Rolf Blom , Mats Näslund , Karl Norrman
IPC分类号： H04L29/06
CPC分类号： H04L63/08 , H04L9/0833 , H04L9/321 , H04L9/3271 , H04L63/104 , H04L63/107 , H04L2209/80 , H04W4/70 , H04W12/06
摘要： According to an aspect of the present invention there is provided a method of operating a communication device, the communication device being part of a group comprising two or more communication devices that share a subscription to a communication network. The method comprises receiving a group authentication challenge from the network, at least part of the group authentication challenge having been generated using group authentication information that is associated with the shared subscription. The device then generates a device specific response to the group authentication challenge using the group authentication information and device specific authentication information and sends the device specific response to the network. The device is for example a member of a machine-type communication device group.
摘要翻译：根据本发明的一个方面，提供了一种操作通信设备的方法，所述通信设备是包括共享对通信网络的订阅的两个或更多个通信设备的组的一部分。该方法包括从网络接收组认证挑战，使用与共享订阅相关联的组认证信息已经生成了组认证挑战的至少一部分。然后，该设备使用组认证信息和设备特定认证信息生成对组认证挑战的设备特定响应，并将设备特定响应发送到网络。该设备例如是机器型通信设备组的成员。

10. 发明授权

US09106409B2 Method and apparatus for handling keys used for encryption and integrity 有权
标题翻译：用于处理用于加密和完整性的密钥的方法和装置
公开(公告)号：US09106409B2
公开(公告)日：2015-08-11
申请号：US11726527
申请日：2007-03-22
申请人： Rolf Blom , Karl Norrman , Mats Näslund
发明人： Rolf Blom , Karl Norrman , Mats Näslund
IPC分类号： H04L9/08 , H04L29/06 , H04W12/04
CPC分类号： H04L63/062 , H04L9/0844 , H04L9/0891 , H04L2209/80 , H04W12/04
摘要： A method and an arrangement for providing keys for protecting communication between a terminal (300) and service points in a communication network. A basic key (Ik) is first established with a service control node (304) when the terminal has entered the network. An initial modified key (Ik1) is then created in both the service control node and the terminal, by applying a predetermined first function (f) to at least the basic key and an initial value of a key version parameter (v). The initial modified key is sent to a first service point (302), such that it can be used to protect communication between the terminal and the first service point. When the terminal switches to a second service point (306), the first service point and the terminal both create a second modified key (Ik2) by applying a predetermined second function (g) to the initial modified key, and the first service point sends the second modified key to the second service point.
摘要翻译：一种用于提供用于保护终端（300）与通信网络中的服务点之间的通信的密钥的方法和装置。当终端进入网络时，首先与服务控制节点（304）建立基本密钥（Ik）。然后，通过将预定的第一函数（f）应用于至少基本密钥和密钥版本参数（v）的初始值，在服务控制节点和终端两者中创建初始修改密钥（Ik1）。初始修改的密钥被发送到第一服务点（302），使得其可以用于保护终端和第一服务点之间的通信。当终端切换到第二服务点（306）时，第一服务点和终端都通过对初始修改密钥应用预定的第二功能（g）来创建第二修改密钥（Ik2），并且第一服务点发送第二个修改密钥到第二个服务点。

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