公开(公告)号：US20110238987A1

公开(公告)日：2011-09-29

申请号：US12731075

申请日：2010-03-24

申请人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

发明人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

IPC分类号： H04L9/32 ,  H03M13/00

CPC分类号： H04L9/3268 ,  H04L1/0041 ,  H04L1/0057 ,  H04L41/5009 ,  H04L41/5038 ,  H04L63/0823 ,  H04L63/123 ,  H04L67/12 ,  H04L2209/84 ,  H04W12/06

摘要： A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses Forward Error Correcting (FEC) codes to encode a digital certificate into multiple segments, and attaches one or more segment to each message transmitted. Nodes receiving the messages can reconstruct the certificate as long as they successfully receive a minimum number of the transmitted messages, where the minimum number is less than the total number of messages transmitted. This allows message authentication to continue uninterrupted, even in a network environment where some messages are lost in transmission. Two different types of FEC codes are described, and adaptive schemes are included to optimize message throughput based on such network conditions as node density.

摘要翻译： 一种用于提高车载到车辆（V2V）网络的可靠性和性能的方法，其中数字证书对于消息认证是必要的，并且一些消息可能在传输中丢失。 该方法使用前向纠错（FEC）码将数字证书编码成多个段，并将一个或多个段附加到每个发送的消息。 接收消息的节点可以重建证书，只要它们成功地接收到发送的消息的最小数量，其中最小数目小于发送的消息总数。 这样即使在传输中丢失某些消息的网络环境中，也可以使消息认证继续不间断。 描述了两种不同类型的FEC码，并且包括自适应方案以基于诸如节点密度的网络条件来优化消息吞吐量。

公开(公告)号：US20120265995A1

公开(公告)日：2012-10-18

申请号：US13086864

申请日：2011-04-14

申请人： Arzad A. Kherani ,  Debojyoti Bhattacharya ,  Skanda N. Muthaiah

发明人： Arzad A. Kherani ,  Debojyoti Bhattacharya ,  Skanda N. Muthaiah

IPC分类号： H04L9/00

CPC分类号： H04L63/08 ,  H04L9/3247 ,  H04L63/12 ,  H04L67/12 ,  H04L2209/805 ,  H04L2209/84 ,  H04W4/046 ,  H04W4/70 ,  H04W12/06 ,  H04W12/10 ,  H04W84/005

摘要： A method for securing communications in a vehicle-to-vehicle (V2V) system including an on-board computer of a broadcasting vehicle predicting a value for a vehicle parameter, generating a heavyweight signature corresponding to the predicted value, and obtaining an actual value for the vehicle parameter. The method also includes the computer comparing the predicted value to the actual value to determine if the predicted value bears a first relationship to the actual value. If the computer determines that the predicted value bears the relationship to the actual value, the on-board computer generates a lightweight authenticating signature to correspond to the predicted value and broadcasts a data message having the predicted value with the corresponding heavyweight authenticating signature and the corresponding lightweight authenticating signature.

摘要翻译： 一种用于确保车辆到车辆（V2V）系统中的通信的方法，该系统包括预测车辆参数值的广播车辆的车载计算机，生成与预测值相对应的重量级签名，并获得实际值 车辆参数。 该方法还包括计算机将预测值与实际值进行比较以确定预测值是否与实际值具有第一关系。 如果计算机确定预测值与实际值具有关系，则车载计算机生成轻量级认证签名以对应于预测值，并且广播具有相应重量级认证签名的预测值的数据消息和对应的 轻量级认证签名。

公开(公告)号：US20110238986A1

公开(公告)日：2011-09-29

申请号：US12731063

申请日：2010-03-24

申请人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

发明人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

IPC分类号： H04L9/32

CPC分类号： H04L1/0041 ,  H04L1/0057 ,  H04L9/3268 ,  H04L43/0829 ,  H04L43/0882 ,  H04L63/0823 ,  H04L67/12 ,  H04L2209/84 ,  H04W12/06

摘要： A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses a variable inter-certificate refresh period to optimize communications throughput based on network conditions such as node density and bandwidth saturation. In some network conditions, the inter-certificate refresh period may be increased, such that more certificate digests are sent between full digital certificates, to decrease average message size. In other network conditions, the inter-certificate refresh period may be decreased, to allow for more frequent message authentication by receiving nodes. Empirical data and an adaptive controller are used to select the refresh period which will provide the best performance based on network conditions.

摘要翻译： 一种用于提高车载到车辆（V2V）网络的可靠性和性能的方法，其中数字证书对于消息认证是必要的，并且一些消息可能在传输中丢失。 该方法使用可变的证书间刷新周期来根据网络条件（如节点密度和带宽饱和度）优化通信吞吐量。 在一些网络条件下，可以增加证书间刷新周期，使得在全数字证书之间发送更多的证书摘要，以减少平均消息大小。 在其他网络条件下，可以减少证书间刷新周期，以允许接收节点进行更频繁的消息认证。 经验数据和自适应控制器用于选择基于网络条件提供最佳性能的刷新周期。

公开(公告)号：US08756430B2

公开(公告)日：2014-06-17

申请号：US13086864

申请日：2011-04-14

申请人： Arzad A. Kherani ,  Debojyoti Bhattacharya ,  Skanda N. Muthaiah

发明人： Arzad A. Kherani ,  Debojyoti Bhattacharya ,  Skanda N. Muthaiah

IPC分类号： H04L9/32

CPC分类号： H04L63/08 ,  H04L9/3247 ,  H04L63/12 ,  H04L67/12 ,  H04L2209/805 ,  H04L2209/84 ,  H04W4/046 ,  H04W4/70 ,  H04W12/06 ,  H04W12/10 ,  H04W84/005

摘要： A method for securing communications in a vehicle-to-vehicle (V2V) system including an on-board computer of a broadcasting vehicle predicting a value for a vehicle parameter, generating a heavyweight signature corresponding to the predicted value, and obtaining an actual value for the vehicle parameter. The method also includes the computer comparing the predicted value to the actual value to determine if the predicted value bears a first relationship to the actual value. If the computer determines that the predicted value bears the relationship to the actual value, the on-board computer generates a lightweight authenticating signature to correspond to the predicted value and broadcasts a data message having the predicted value with the corresponding heavyweight authenticating signature and the corresponding lightweight authenticating signature.

摘要翻译： 一种用于确保车辆到车辆（V2V）系统中的通信的方法，该系统包括预测车辆参数值的广播车辆的车载计算机，生成与预测值相对应的重量级签名，并获得实际值 车辆参数。 该方法还包括计算机将预测值与实际值进行比较以确定预测值是否与实际值具有第一关系。 如果计算机确定预测值与实际值具有关系，则车载计算机生成与预测值相对应的轻量级认证签名，并且广播具有相应重量级认证签名的具有预测值的数据消息，并且对应于 轻量级认证签名。

公开(公告)号：US08627073B2

公开(公告)日：2014-01-07

申请号：US12731075

申请日：2010-03-24

申请人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

发明人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

IPC分类号： H04L9/00 ,  H04L9/28 ,  H04L12/24 ,  H04K1/00 ,  H03M13/03

CPC分类号： H04L9/3268 ,  H04L1/0041 ,  H04L1/0057 ,  H04L41/5009 ,  H04L41/5038 ,  H04L63/0823 ,  H04L63/123 ,  H04L67/12 ,  H04L2209/84 ,  H04W12/06

摘要： A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses Forward Error Correcting (FEC) codes to encode a digital certificate into multiple segments, and attaches one or more segment to each message transmitted. Nodes receiving the messages can reconstruct the certificate as long as they successfully receive a minimum number of the transmitted messages, where the minimum number is less than the total number of messages transmitted. This allows message authentication to continue uninterrupted, even in a network environment where some messages are lost in transmission. Two different types of FEC codes are described, and adaptive schemes are included to optimize message throughput based on such network conditions as node density.

摘要翻译： 一种用于提高车载到车辆（V2V）网络的可靠性和性能的方法，其中数字证书对于消息认证是必需的，并且一些消息可能在传输中丢失。 该方法使用前向纠错（FEC）码将数字证书编码成多个段，并将一个或多个段附加到每个发送的消息。 接收消息的节点可以重建证书，只要它们成功地接收到发送的消息的最小数量，其中最小数目小于发送的消息总数。 这样即使在传输中丢失某些消息的网络环境中，也可以使消息认证继续不间断。 描述了两种不同类型的FEC码，并且包括自适应方案以基于诸如节点密度的网络条件来优化消息吞吐量。

公开(公告)号：US08499155B2

公开(公告)日：2013-07-30

申请号：US12731063

申请日：2010-03-24

申请人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

发明人： Arzad A. Kherani ,  Skanda N. Muthaiah ,  Debojyoti Bhattacharya

IPC分类号： H04L9/32 ,  H04L29/06

CPC分类号： H04L1/0041 ,  H04L1/0057 ,  H04L9/3268 ,  H04L43/0829 ,  H04L43/0882 ,  H04L63/0823 ,  H04L67/12 ,  H04L2209/84 ,  H04W12/06

摘要： A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses a variable inter-certificate refresh period to optimize communications throughput based on network conditions such as node density and bandwidth saturation. In some network conditions, the inter-certificate refresh period may be increased, such that more certificate digests are sent between full digital certificates, to decrease average message size. In other network conditions, the inter-certificate refresh period may be decreased, to allow for more frequent message authentication by receiving nodes. Empirical data and an adaptive controller are used to select the refresh period which will provide the best performance based on network conditions.

摘要翻译： 一种用于提高车载到车辆（V2V）网络的可靠性和性能的方法，其中数字证书对于消息认证是必需的，并且一些消息可能在传输中丢失。 该方法使用可变的证书间刷新周期来根据网络条件（如节点密度和带宽饱和度）优化通信吞吐量。 在一些网络条件下，可以增加证书间刷新周期，使得在全数字证书之间发送更多的证书摘要，以减少平均消息大小。 在其他网络条件下，可以减少证书间刷新周期，以允许接收节点进行更频繁的消息认证。 经验数据和自适应控制器用于选择基于网络条件提供最佳性能的刷新周期。

公开(公告)号：US20120155636A1

公开(公告)日：2012-06-21

申请号：US12972661

申请日：2010-12-20

申请人： Skanda N. Muthaiah

发明人： Skanda N. Muthaiah

IPC分类号： H04L9/00

CPC分类号： H04L9/3231 ,  H04L9/0825 ,  H04L2209/84

摘要： A method is provided for generating on-demand cryptographic keys in a vehicle-to-vehicle communication system. At least one unique identifier is obtained relating to a user of the vehicle. The host vehicle generates cryptographic keys for encrypting, decrypting, and authenticating secured messages between the host vehicle and at least one remote vehicle in the vehicle-to-vehicle communication system. The cryptographic keys are generated as a function of the at least one unique identifier. A respective cryptographic key used to decrypt or encrypt messages communicated between the host vehicle and the at least one remote entity is temporarily stored in a memory device of the host vehicle. The host vehicle utilizes the respective cryptographic key to decrypt or encrypt a secure message transmitted between the host vehicle and the remote vehicle. The respective cryptographic key temporarily stored in the memory device of the host vehicle is deleted after the vehicle-to-vehicle communications of the host vehicle is disabled.

摘要翻译： 提供一种用于在车对车通信系统中生成按需加密密钥的方法。 获得与车辆的用户有关的至少一个唯一标识符。 主车辆产生用于在车辆与车辆通信系统中的主车辆与至少一个远程车辆之间加密，解密和认证安全消息的加密密钥。 作为至少一个唯一标识符的函数产生加密密钥。 用于解密或加密在主车辆与至少一个远程实体之间传送的消息的相应加密密钥临时存储在主车辆的存储设备中。 主机使用相应的加密密钥来解密或加密在主车辆和远程车辆之间传输的安全消息。 在本车辆的车辆到车辆通信被禁用之后，暂时存储在主车辆的存储装置中的各个密码密钥被删除。

公开(公告)号：US08526606B2

公开(公告)日：2013-09-03

申请号：US12972661

申请日：2010-12-20

申请人： Skanda N. Muthaiah

发明人： Skanda N. Muthaiah

IPC分类号： H04L9/00

CPC分类号： H04L9/3231 ,  H04L9/0825 ,  H04L2209/84

摘要： A method is provided for generating on-demand cryptographic keys in a vehicle-to-vehicle communication system. At least one unique identifier is obtained relating to a user of the vehicle. The host vehicle generates cryptographic keys for encrypting, decrypting, and authenticating secured messages between the host vehicle and at least one remote vehicle in the vehicle-to-vehicle communication system. The cryptographic keys are generated as a function of the at least one unique identifier. A respective cryptographic key used to decrypt or encrypt messages communicated between the host vehicle and the at least one remote entity is temporarily stored in a memory device of the host vehicle. The host vehicle utilizes the respective cryptographic key to decrypt or encrypt a secure message transmitted between the host vehicle and the remote vehicle. The respective cryptographic key temporarily stored in the memory device of the host vehicle is deleted after the vehicle-to-vehicle communications of the host vehicle is disabled.

摘要翻译： 提供一种用于在车对车通信系统中生成按需加密密钥的方法。 获得与车辆的用户有关的至少一个唯一标识符。 主车辆产生用于在车辆与车辆通信系统中的主车辆与至少一个远程车辆之间加密，解密和认证安全消息的加密密钥。 作为至少一个唯一标识符的函数产生加密密钥。 用于解密或加密在主车辆与至少一个远程实体之间传送的消息的相应加密密钥临时存储在主车辆的存储设备中。 主机使用相应的加密密钥来解密或加密在主车辆和远程车辆之间传输的安全消息。 在本车辆的车辆到车辆通信被禁用之后，暂时存储在主车辆的存储装置中的各个密码密钥被删除。

公开(公告)号：US20110080302A1

公开(公告)日：2011-04-07

申请号：US12572514

申请日：2009-10-02

申请人： Skanda N. Muthaiah ,  Rajeev Shorey

发明人： Skanda N. Muthaiah ,  Rajeev Shorey

IPC分类号： G08G1/16

CPC分类号： H04L47/10 ,  H04L67/12 ,  H04L69/32 ,  H04W4/02 ,  H04W4/023 ,  H04W4/40 ,  H04W4/50 ,  H04W12/06

摘要： A method is provided for efficiently processing messages staged for authentication in a security layer of a protocol stack in a wireless vehicle-to-vehicle communication system. The vehicle-to-vehicle communication system includes a host vehicle receiver for receiving messages transmitted by one or more remote vehicles. The host receiver is configured to authenticate received messages in a security layer of a protocol stack. A wireless message broadcast by a remote vehicle is received. The wireless message contains characteristic data of the remote vehicle. The characteristic data is analyzed for determining whether the wireless message is in compliance with a predetermined parameter of the host vehicle. The wireless message is discarded prior to a transfer of the wireless message to the security layer in response to a determination that the wireless message is not in compliance with the predetermined parameter of the host vehicle. Otherwise, the wireless message is transferred to the security layer.

摘要翻译： 提供了一种用于在无线车对车通信系统中有效地处理在协议栈的安全层中进行认证的分段的消息的方法。 车辆对车辆通信系统包括用于接收由一个或多个远程车辆发送的消息的主车辆接收器。 主机接收器被配置为对协议栈的安全层中的接收到的消息进行认证。 接收由远程车辆广播的无线消息。 无线消息包含远程车辆的特征数据。 分析特征数据以确定无线消息是否符合主车辆的预定参数。 响应于确定无线消息不符合主车辆的预定参数，在将无线消息传送到安全层之前，无线消息被丢弃。 否则，无线消息被传送到安全层。