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公开(公告)号：US10057056B2
公开(公告)日：2018-08-21
申请号：US15135118
申请日：2016-04-21
申请人： Robert Bosch GmbH
发明人： Rene Guillaume
CPC分类号： H04L9/0838 , H04K1/00 , H04L9/0875 , H04W12/04
摘要： A method for generating a secret cryptographic key, which is common to a first node and a second node, with the aid of at least one helper node. The first node wirelessly transmits a first random sequence, the second node receives the first random sequence via a generally static reciprocal first communication channel, the second node receives a first signal, which is a function of the first random sequence, with the aid of the helper node, the second node derives the key from the first signal using the first random sequence, the second node wirelessly transmits a second random sequence, the first node receives the second random sequence, the first node receives a second signal, which is a function of the second random sequence, with the aid of the helper node, and derives the key from the second signal with the aid of the second random sequence.
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公开(公告)号：US10015801B2
公开(公告)日：2018-07-03
申请号：US15268992
申请日：2016-09-19
发明人： Steve J Shattil
IPC分类号： H04W72/08 , H04W12/08 , H04W12/04 , H04L5/00 , H04W16/14 , H04B7/0456 , H04L9/08 , H04L29/06
CPC分类号： H04L63/061 , H04B7/0456 , H04L5/0007 , H04L5/0055 , H04L9/0875 , H04L63/0435 , H04W12/04 , H04W12/08 , H04W16/14 , H04W72/082
摘要： A radio transceiver comprises a first baseband processor, a second baseband processor, and a radio transmitter coupled to the first and second baseband processors. The first baseband processor receives a radio channel allocation from a first network comprising a radio frequency reserved for communicating in the first network. The second baseband processor is configured to process baseband data for communicating in a second network. The radio transmitter is configured to employ the radio frequency for communication in the second network while the radio frequency is reserved in the first network.
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公开(公告)号：US20180013553A1
公开(公告)日：2018-01-11
申请号：US15275207
申请日：2016-09-23
发明人： Amer Hassan
CPC分类号： H04W12/0401 , G06F1/266 , H04L9/0822 , H04L9/0861 , H04L9/0866 , H04L9/0875 , H04L9/14 , H04L25/0202 , H04L25/0212 , H04L63/061 , H04L2209/80 , H04W12/003 , H04W12/00504
摘要： The embodiments provide a cryptography key for two communicating devices that is based on information known only to the devices. The information may only be determined by the devices. Each device determines the information without communicating key information related to the encryption key with the other. Channel characteristic reciprocity between the devices allows creation of identical keys in each device. Each device sends a signal to the other device at the same power level based on the distance between the devices. The power level may be set to result in a target receive power level at the other device. Each device samples the received signal, generates sampling results, creates a key based on the sampling results and a threshold power level, and utilizes the key. The threshold power level may be based on the target receive power level, or a median power determined from the sampling results.
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公开(公告)号：US09813240B2
公开(公告)日：2017-11-07
申请号：US14922886
申请日：2015-10-26
申请人： Robert Bosch GmbH
发明人： Andreas Mueller
CPC分类号： H04L9/0875 , H04L9/0827 , H04L9/0852 , H04L43/0876
摘要： In a method for generating a secret key, a first node which is connected via a transmission channel to a second node estimates a variability of the transmission channel with regard to at least one physical channel parameter of the transmission channel, selects a sampling rate for the channel parameter as a function of the variability, generates a bit sequence by sampling the channel parameter at the selected sampling rate, and adjusts the bit sequence with the second node.
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公开(公告)号：US20170188235A1
公开(公告)日：2017-06-29
申请号：US15455412
申请日：2017-03-10
发明人： Liang Xiao , Chunxuan Ye , Suhas Mathur , Yogendra C. Shah , Alexander Reznik
CPC分类号： H04W12/06 , H04L9/0875 , H04L9/3226 , H04L9/3236 , H04L2209/38 , H04L2209/805 , H04W12/003
摘要： A method and apparatus for use in authentication for secure wireless communication is provided. A received signal is physically authenticated and higher layer processed. Physical authentication includes performing hypothesis testing using a channel impulse response (CIR) measurement of the received signal and predetermined referenced data. Higher layer processing includes validating the signal using a one-way hash chain value in the signal. Once a signal is authenticated, secure wireless communication is performed.
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6.发明申请公开(公告)号：US20170048065A1
公开(公告)日：2017-02-16
申请号：US15230939
申请日：2016-08-08
发明人： Iulia TUNARU , Benoit DENIS , Regis PERRIER
CPC分类号： H04L9/0877 , H04L9/0833 , H04L9/0875 , H04L63/0442 , H04L63/061 , H04L69/323 , H04L2209/80 , H04W4/06 , H04W12/04 , H04W80/00
摘要： A method for generating a secret key shared by a group of at least three terminals from characteristics of wireless communication channels connecting the terminals in twos, including, at each of the terminals of the group, the implementation of the following steps of: acquiring signals from wireless communication channels, known as adjacent channels, connected to the terminal and generating a representation of each adjacent channel; for at least one wireless communication channel, known as a non-adjacent channel, not connected to the terminal, acquiring at least one image signal of the non-adjacent channel and generating a representation of the non-adjacent channel, determining the secret key from a combination of the representations of the adjacent channels and at least one representation of non-adjacent channel.
摘要翻译： 一种用于通过连接两端的终端的无线通信信道的特性来生成由至少三个终端的组共享的秘密密钥的方法，包括在该组的每个终端处执行以下步骤的实现：从 被称为相邻信道的无线通信信道连接到终端并产生每个相邻信道的表示; 对于未连接到终端的已知为非相邻信道的至少一个无线通信信道，获取非相邻信道的至少一个图像信号并生成非相邻信道的表示，从 相邻信道的表示和非相邻信道的至少一个表示的组合。
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公开(公告)号：US20170012772A1
公开(公告)日：2017-01-12
申请号：US14923003
申请日：2015-10-26
申请人： Robert Bosch GmbH
发明人： Andreas MUELLER
CPC分类号： H04L9/0875 , H04L43/0876 , H04L2209/34
摘要： In a method for generating a secret key, a first node which is connected via a transmission channel to a second node measures a sequence of physical channel parameters of the transmission channel within a predefined time window, determines for multiple predefined code words a distance of each code word from the sequence, selects a particular code word from the multiple code words which has the shortest distance from the sequence, and adjusts a bit sequence which is assigned to the selected code word with the second node via the transmission channel.
摘要翻译： 在用于生成秘密密钥的方法中，经由传输信道连接到第二节点的第一节点在预定时间窗口内测量传输信道的物理信道参数的序列，为多个预定义码字确定每个 从该序列中的码字，从与该序列具有最短距离的多个码字中选择一个特定的码字，并经由传输信道调整分配给所选码字的位序列与第二节点。
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8.发明授权公开(公告)号：US09490977B2
公开(公告)日：2016-11-08
申请号：US12266435
申请日：2008-11-06
CPC分类号： H04L9/0875 , H04K1/00 , H04L2209/80 , H04W12/02 , H04W12/04
摘要： A method and apparatus for generating physical layer security keys is provided. Channel impulse response (CIR) measurements are recorded. Each CIR measurement is associated with a time-stamp. Where possible, the time-stamps are paired with time-stamps that are associated with another plurality of CIR measurements. The CIR data associated with the paired time-stamps is aggregated. Each of the aggregated CIR measurements is aligned, and at least one CIR measurement is selected for use in secret key generation.
摘要翻译： 提供了一种用于生成物理层安全密钥的方法和装置。 记录通道脉冲响应（CIR）测量。 每个CIR测量都与时间戳相关联。 在可能的情况下，时间戳与与另一多个CIR测量相关联的时间戳配对。 与配对的时间戳相关联的CIR数据被聚合。 每个聚合的CIR测量被对齐，并且选择至少一个CIR测量用于秘密密钥生成。
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公开(公告)号：US20150381357A1
公开(公告)日：2015-12-31
申请号：US14748277
申请日：2015-06-24
申请人： Robert Bosch GmbH
CPC分类号： H04W12/04 , H04L9/0875 , H04L2209/80
摘要： A first partner connected to a channel collects samples of a physical variable on the basis of a time-variable property of the channel; stores a first array of at least bivalent elements; stores a second array of at least bivalent elements, each element in the second array corresponding to a remaining element in the first array and representing a first state if the sample, to which the remaining element in the first array corresponds, is outside a limit range and representing a second state if the sample is within the limit range; receives a parity check bit from the second partner; subjects elements in the first array to a parity check using the parity check bit; and, if the parity check fails, determines a checked element in the first array whose corresponding element in the second array represents the second state, and inverts the determined element in the first array.
摘要翻译： 连接到频道的第一伙伴根据频道的时变属性收集物理变量的样本; 存储至少二价元素的第一阵列; 存储至少二价元素的第二阵列，所述第二阵列中的每个元素对应于所述第一阵列中的剩余元素，并且如果所述第一阵列中的剩余元素对应于所述样本超出限制范围，则表示第一状态 并且如果所述样本在所述限制范围内则表示第二状态; 从第二个伙伴接收一个奇偶校验位; 使用奇偶校验位将第一个阵列中的主题元素进行奇偶校验; 并且如果所述奇偶校验失败，则确定所述第一阵列中的已检查元素，其中所述第二阵列中的相应元素表示所述第二状态，并且反转所述第一阵列中确定的元素。
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10.发明授权公开(公告)号：US09161214B2
公开(公告)日：2015-10-13
申请号：US13770181
申请日：2013-02-19
发明人： John S. Baras , Paul L. Yu , Brian M. Sadler
CPC分类号： H04W12/02 , H04H20/57 , H04K3/25 , H04K3/255 , H04L9/0875 , H04L9/3228 , H04L63/123 , H04L2209/08 , H04L2209/80 , H04W12/06 , H04W12/10
摘要： The subject authentication scheme encompasses a large family of authentication systems which may be built over existing transmission systems. By superimposing a carefully designed secret modulation on the waveforms, authentication is added to the signal without requiring additional bandwidth. The authentication information (tag signal) is sent concurrently with data (message signal). The authentication is designed to be stealthy to the uninformed user, robust to interference, and secure for identity verification. The tradeoffs between these three goals are identified and analyzed. The use of the authentication for channel estimation is also considered, and improved bit errors are demonstrated for time-varying channels. With a long enough authentication code word an authentication system is achieved with very slight data degradation. Additionally, by treating the authentication tag as a sequence of pilot symbols, the data recovery may be improved by the aware receiver.
摘要翻译： 主体认证方案包括可以建立在现有传输系统上的大型认证系统系列。 通过在波形上叠加仔细设计的秘密调制，将认证添加到信号中，而不需要额外的带宽。 认证信息（标签信号）与数据（消息信号）同时发送。 身份验证被设计为对不知情的用户是隐身的，对干扰而言是稳健的，并且用于身份验证。 确定和分析这三个目标之间的权衡。 还考虑了对信道估计的认证的使用，并且针对时变信道示出了改进的比特错误。 使用足够长的认证码字，实现了非常轻微的数据降级的认证系统。 此外，通过将认证标签视为导频符号序列，可以通过感知接收机来改善数据恢复。
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