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1. 发明授权

US08855316B2 Quantum cryptography apparatus 有权
标题翻译：量子密码学装置
公开(公告)号：US08855316B2
公开(公告)日：2014-10-07
申请号：US12863510
申请日：2009-01-23
申请人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Middleton Hicks
发明人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Middleton Hicks
IPC分类号： H04L9/08
CPC分类号： H04L9/0855 , H04L9/0852
摘要： The method involves exchange of a quantum signal between a first quantum node and a second quantum node as is usual in known quantum key distribution (QKD) scheme. The first quantum node communicates details of the quantum signal it sent or received with a first remote node. The first remote node thus has all the information to required to take the place of the first quantum node in the key agreement step with the second quantum node. The first quantum node may be arranged to transmit the quantum signal to the second quantum node, in which case the invention provides a distributed quantum transmitter with the control logic in the first remote node being distributed remotely from the actual quantum transmitter in the first quantum node. Communications between the first remote node and first quantum node may comprise or be protected by a quantum key derived by conventional QKD.
摘要翻译：该方法涉及在第一量子节点和第二量子节点之间交换量子信号，如已知的量子密钥分配（QKD）方案中通常的。第一个量子节点传送与第一个远程节点发送或接收的量子信号的细节。因此，第一远程节点具有与第二量子节点在密钥协商步骤中取代第一量子节点所需的所有信息。第一量子节点可以被布置为将量子信号传输到第二量子节点，在这种情况下，本发明提供一种分布式量子发射机，其中第一远程节点中的控制逻辑从第一量子节点中的实际量子发射机远程分布。第一远程节点和第一量子节点之间的通信可以由常规QKD导出的量子密钥包含或保护。

2. 发明授权

US09692595B2 Quantum key distribution 有权
公开(公告)号：US09692595B2
公开(公告)日：2017-06-27
申请号：US13990230
申请日：2011-12-01
申请人： Brian Sinclair Lowans , Richard Middleton Hicks
发明人： Brian Sinclair Lowans , Richard Middleton Hicks
IPC分类号： H04L9/08
CPC分类号： H04L9/0858 , H04L9/0838 , H04L9/0852 , H04L9/0855 , H04L9/0891
摘要： Methods and apparatus for quantum key distribution are described, in particular including methods and networks 300 arranged to improve and/or ensure the security of data transmitted thereby by (i) ensuring a certain level of loss within at least part of the network, (ii) placing a penultimate and an endpoint nodes in situated in a secure second enclave, (iii) analyzing a transmitted bit stream to ensure that it does not provide an unacceptable amount of information about the key that may be generated therefrom, and/or (iv) varying the order in which bits are used to generate a key.

3. 发明授权

US08683192B2 Methods and apparatus for use in quantum key distribution 有权
标题翻译：用于量子密钥分发的方法和装置
公开(公告)号：US08683192B2
公开(公告)日：2014-03-25
申请号：US13496324
申请日：2010-09-28
申请人： Stephen Gerard Ayling , Simon Robert Wiseman , Brian Sinclair Lowans
发明人： Stephen Gerard Ayling , Simon Robert Wiseman , Brian Sinclair Lowans
IPC分类号： H04L29/06
CPC分类号： H04L9/0858 , H04B10/70
摘要： Methods and apparatus for use in quantum key distribution (QKD) are described. A quantum QKD signal is generated at a source and transmitted through a fiber optic network to an endpoint, a key being agreed with communication over a classical QKD channel. The classical QKD channel contains additional information relevant to a network over which keys are distributed, and may be processed at nodes intermediate between the source and the endpoint.
摘要翻译：描述了用于量子密钥分发（QKD）的方法和装置。量子QKD信号在源处产生并通过光纤网络传输到端点，密钥与经典QKD信道的通信一致。经典的QKD信道包含与分配密钥的网络相关的附加信息，并且可以在源和端点之间的节点处处理。

4. 发明申请

US20100290626A1 OPTICAL TRANSMITTERS AND RECEIVERS FOR QUANTUM KEY DISTRIBUTION 有权
标题翻译：用于量子键分配的光学发射器和接收器
公开(公告)号：US20100290626A1
公开(公告)日：2010-11-18
申请号：US12863509
申请日：2009-01-23
申请人： Richard Michael Jenkins , Brian Sinclair Lowans , Ewan David Finlayson
发明人： Richard Michael Jenkins , Brian Sinclair Lowans , Ewan David Finlayson
IPC分类号： H04L9/08
CPC分类号： H04B10/30 , H04B10/70
摘要： An optical receiver for a quantum key distribution system comprises a plurality of optical components mounted or formed in a substrate and optically coupled by one or more hollow core waveguides formed in the substrate.
摘要翻译：用于量子密钥分配系统的光接收器包括安装或形成在基板中并由形成在基板中的一个或多个空心波导光学耦合的多个光学部件。

5. 发明申请

US20130251145A1 QUANTUM KEY DISTRIBUTION 有权
标题翻译：量子键分配
公开(公告)号：US20130251145A1
公开(公告)日：2013-09-26
申请号：US13990230
申请日：2011-12-01
申请人： Brian Sinclair Lowans , Richard Middleton Hicks
发明人： Brian Sinclair Lowans , Richard Middleton Hicks
IPC分类号： H04L9/08
CPC分类号： H04L9/0858 , H04L9/0838 , H04L9/0852 , H04L9/0855 , H04L9/0891
摘要： Methods and apparatus for quantum key distribution are described, in particular including methods and networks 300 arranged to improve and/or ensure the security of data transmitted thereby by (i) ensuring a certain level of loss within at least part of the network, (ii) placing a penultimate and an endpoint nodes in situated in a secure second enclave, (iii) analysing a transmitted bit stream to ensure that it does not provide an unacceptable amount of information about the key that may be generated therefrom, and/or (iv) varying the order in which bits are used to generate a key.
摘要翻译：描述了用于量子密钥分发的方法和装置，特别是包括布置成通过（i）确保至少部分网络内的一定程度的损失来改善和/或确保由此传输的数据的安全性的方法和网络300（ii 将倒数第二个和端点节点放置在安全的第二个飞地中，（iii）分析传输的比特流以确保它不提供关于可能由其产生的密钥的不可接受的量的信息，和/或（iv ）改变使用比特来生成密钥的顺序。

6. 发明申请

US20120177201A1 METHODS AND APPARATUS FOR USE IN QUANTUM KEY DISTRIBUTION 有权
标题翻译：用于量子钥匙分配的方法和装置
公开(公告)号：US20120177201A1
公开(公告)日：2012-07-12
申请号：US13496324
申请日：2010-09-28
申请人： Stephen Gerard Ayling , Simon Robert Wiseman , Brian Sinclair Lowans
发明人： Stephen Gerard Ayling , Simon Robert Wiseman , Brian Sinclair Lowans
IPC分类号： H04L9/08
CPC分类号： H04L9/0858 , H04B10/70
摘要： Methods and apparatus for use in quantum key distribution (QKD) are described. A quantum QKD signal is generated at a source and transmitted through a fibre optic network to an endpoint, a key being agreed with communication over a classical QKD channel. The classical QKD channel contains additional information relevant to a network over which keys are distributed, and may be processed at nodes intermediate between the source and the endpoint.
摘要翻译：描述了用于量子密钥分发（QKD）的方法和装置。量子QKD信号在源处产生并通过光纤网络传输到端点，密钥与经典QKD信道的通信一致。经典的QKD信道包含与分配密钥的网络相关的附加信息，并且可以在源和端点之间的节点处处理。

7. 发明申请

US20110228937A1 METHOD OF ESTABLISHING A QUANTUM KEY FOR USE BETWEEN NETWORK NODES 有权
标题翻译：建立网络节点使用量子密钥的方法
公开(公告)号：US20110228937A1
公开(公告)日：2011-09-22
申请号：US13130790
申请日：2009-12-02
申请人： Simon Robert Wiseman , Richard Middleton Hicks , Brian Sinclair Lowans
发明人： Simon Robert Wiseman , Richard Middleton Hicks , Brian Sinclair Lowans
IPC分类号： H04K1/00
CPC分类号： H04L9/0844 , H04L9/0855
摘要： A method of establishing a quantum key for use between a first network node (QNode1) and a second network node (QNode3) in a network for carrying out quantum cryptography includes a key agreement step carried out by a third node (QNode2) and the second node (QNode3) and a subsequent authentication step carried out by the first and second nodes directly. As the key agreement step does not involve QNode1, another key agreement step may be simultaneously performed by another pair of network nodes QNode4, QNode5 to agree a quantum key for use by network nodes QNode1 and QNode5. The invention allows respective quantum keys to be established between a network node and each of a set of other nodes more rapidly than is the case if each quantum key is established serially by key agreement and authentication steps.
摘要翻译：在网络中建立用于执行量子密码术的第一网络节点（QNode1）和第二网络节点（QNode3）之间使用的量子密钥的方法包括由第三节点（QNode2）执行的密钥协商步骤，第二节点节点（QNode3）和由第一和第二节点直接执行的后续认证步骤。由于密钥协商步骤不涉及QNode1，另一个密钥协商步骤可以由另一对网络节点QNode4，QNode5同时执行，以同意网络节点QNode1和QNode5使用的量子密钥。本发明允许在网络节点和一组其他节点中的每一个之间建立相应的量子密钥，比通过密钥协商和认证步骤连续建立每个量子密钥时的情况更快。

8. 发明申请

US20100329459A1 MULTI-COMMUNITY NETWORK WITH QUANTUM KEY DISTRIBUTION 有权
标题翻译：具有量子密钥分配的多社区网络
公开(公告)号：US20100329459A1
公开(公告)日：2010-12-30
申请号：US12812849
申请日：2009-01-23
申请人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Andrew Oak
发明人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Andrew Oak
IPC分类号： H04K1/00
CPC分类号： H04B10/70 , H04L9/065 , H04L9/0805 , H04L9/0833 , H04L9/0855 , H04L9/0883
摘要： This invention relates to an optical star network in which different communities of users, such as different businesses, are provided through use of quantum key distribution (QKD). At least one QKD device is located at the central hub of the star network and communicates with QKD devices at the endpoints to establish a separate quantum key, i.e. a cryptographic key established by QKD, with each endpoint. A separate key manager is provided for each different community and each key manager is arranged to use the appropriate quantum keys for endpoints within that community to deliver the same community key to each endpoint. This community key can be used by for encrypting network traffic between members of the same community with security. Traffic passing through the network switch is encrypted, but the community keys are not delivered via the switch and hence the switch an error in the switch does not compromise security.
摘要翻译：本发明涉及一种通过使用量子密钥分发（QKD）来提供诸如不同业务的不同用户群体的光学星形网络。至少一个QKD设备位于星形网络的中央集线器处，并与端点处的QKD设备通信，以建立单独的量子密钥，即由QKD建立的加密密钥与每个端点。为每个不同的社区提供单独的密钥管理器，并且每个密钥管理器被安排为该社区内的端点使用适当的量子密钥向每个端点传递相同的社区密钥。该社区密钥可用于加密具有安全性的同一社区成员之间的网络流量。通过网络交换机的流量被加密，但是社区密钥不通过交换机传递，因此交换机中的交换机的错误不会危及安全性。

9. 发明授权

US08885828B2 Multi-community network with quantum key distribution 有权
标题翻译：具有量子密钥分发的多社区网络
公开(公告)号：US08885828B2
公开(公告)日：2014-11-11
申请号：US12812849
申请日：2009-01-23
申请人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Andrew Oak
发明人： Simon Robert Wiseman , Brian Sinclair Lowans , Richard Andrew Oak
IPC分类号： H04L29/06 , H04L9/08 , H04L9/06 , H04B10/70
CPC分类号： H04B10/70 , H04L9/065 , H04L9/0805 , H04L9/0833 , H04L9/0855 , H04L9/0883
摘要： This invention relates to an optical star network in which different communities of users, such as different businesses, are provided through use of quantum key distribution (QKD). At least one QKD device is located at the central hub of the star network and communicates with QKD devices at the endpoints to establish a separate quantum key, i.e. a cryptographic key established by QKD, with each endpoint. A separate key manager is provided for each different community and each key manager is arranged to use the appropriate quantum keys for endpoints within that community to deliver the same community key to each endpoint. This community key can be used by for encrypting network traffic between members of the same community with security. Traffic passing through the network switch is encrypted, but the community keys are not delivered via the switch and hence the switch an error in the switch does not compromise security.
摘要翻译：本发明涉及一种通过使用量子密钥分发（QKD）来提供诸如不同业务的不同用户群体的光学星形网络。至少一个QKD设备位于星形网络的中央集线器处，并与端点处的QKD设备通信，以建立单独的量子密钥，即由QKD建立的加密密钥与每个端点。为每个不同的社区提供单独的密钥管理器，并且每个密钥管理器被安排为该社区内的端点使用适当的量子密钥向每个端点传递相同的社区密钥。该社区密钥可用于加密具有安全性的同一社区成员之间的网络流量。通过网络交换机的流量被加密，但是社区密钥不通过交换机传递，因此交换机中的交换机的错误不会危及安全性。

10. 发明授权

US08650401B2 Network having quantum key distribution 有权
标题翻译：具有量子密钥分发的网络
公开(公告)号：US08650401B2
公开(公告)日：2014-02-11
申请号：US12863483
申请日：2009-01-23
申请人： Simon Robert Wiseman , Brian Sinclair Lowans
发明人： Simon Robert Wiseman , Brian Sinclair Lowans
IPC分类号： H04L9/32 , H04L9/00 , H04K1/00 , H04M1/70
CPC分类号： H04L63/061 , H04L9/0855
摘要： A method of performing quantum key distribution across a network. The method involves a first node first agreeing a quantum key with a first intermediate node in the path. Next the intermediate node exchanges a quantum signal with the next node in the path—which is a targeted node. The intermediate node communicates with the first node using the previous established quantum key details of the quantum signal sent or received by the intermediate node. The first node then performs a key agreement step to agree a quantum key directly with the targeted node. Having established a quantum key with the current targeted node the method can be repeated but with the next node in the network path as the targeted node until a destination node is reached. The final quantum key agreed with the destination node can then be used for encrypting communication between those nodes across the network.
摘要翻译：一种在网络上执行量子密钥分发的方法。该方法涉及第一节点首先使量子密钥与路径中的第一中间节点同意。接下来，中间节点与作为目标节点的路径中的下一个节点交换量子信号。中间节点使用先前建立的由中间节点发送或接收的量子信号的量子密钥细节与第一节点通信。然后第一个节点执行密钥协商步骤，直接与目标节点达成一个量子密钥。通过与当前目标节点建立量子密钥，可以重复该方法，但将网络路径中的下一个节点作为目标节点，直到到达目标节点。与目的地节点同意的最终量子密钥然后可以用于加密跨网络的那些节点之间的通信。

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