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    Peer-to-peer group management and method for maintaining peer-to-peer graphs
    1.
    发明授权
    Peer-to-peer group management and method for maintaining peer-to-peer graphs 失效
    点对点组管理和维护对等图的方法

    公开(公告)号：US07493363B2

    公开(公告)日：2009-02-17

    申请号：US09955923

    申请日：2001-09-19

    申请人： Christian Huitema ,  Alexandru Gavrilescu ,  Noel W. Anderson ,  Xiaohai Zhang

    发明人： Christian Huitema ,  Alexandru Gavrilescu ,  Noel W. Anderson ,  Xiaohai Zhang

    IPC分类号： G06F15/16

    CPC分类号： H04L29/12292 ,  H04L29/06 ,  H04L61/2069 ,  H04L67/104 ,  H04L67/1044 ,  H04L67/1046 ,  H04L67/1048 ,  H04L67/306 ,  H04L69/329

    摘要： A system and method of serverless peer-to-peer group management and maintenance is presented. Group formation and discovery of private, public, and enumerated groups are provided, as is a method of joining such a peer-to-peer group. Group information management provided by the present invention ensures that each node maintains a current database from the initial joining of the group through the run phase of membership. Group graph maintenance utilizes a group signature to ensure that partitions in a graph may be detected and repaired. The utility of connections within the graph are also monitored so that non-productive connections may be dropped to increase the efficiency of the group. The diameter of the graph is also monitored and adjusted to ensure rapid information transfer throughout the group. A disconnect procedure is used to maintain the graph integrity and prevent partitions resulting from the departure of a group member.

    摘要翻译： 提出了无服务器对等组群管理和维护的系统和方法。 提供私有，公共和枚举组的组合和发现，以及加入这种对等组的方法。 通过本发明提供的组信息管理确保每个节点保持从组的初始加入到成员的运行阶段的当前数据库。 组图维护使用组签名来确保图中的分区可能被检测和修复。 还监视图中连接的效用，以便可以降低非生产性连接以提高组的效率。 还会对图形的直径进行监控和调整，以确保整个组内快速的信息传递。 使用断开连接程序来维护图形的完整性，并防止由于组成员的离开导致的分区。

    Peer-to-peer name resolution protocol (PNRP) security infrastructure and method
    3.
    发明授权
    Peer-to-peer name resolution protocol (PNRP) security infrastructure and method 有权
    对等名称解析协议（PNRP）安全基础设施和方法

    公开(公告)号：US07299351B2

    公开(公告)日：2007-11-20

    申请号：US09956260

    申请日：2001-09-19

    申请人： Christian Huitema ,  John L. Miller ,  Alexandru Gavrilescu

    发明人： Christian Huitema ,  John L. Miller ,  Alexandru Gavrilescu

    IPC分类号： H04L9/00

    CPC分类号： H04L63/04

    摘要： A method for use in a peer-to-peer communication system to ensure valid connections are made in a secure manner includes the steps of receiving an address record for a peer node which includes an ID certificate. The ID certificate is validated and checked to verify that the ID certificate has not expired. Further, the method determines if the node from whom the address record was received is to be trusted, and the number of instances of the IP address included in the certificate is already stored in cache. When the foregoing are completed successfully, i.e. the certificate is valid, not expired, has been supplied by a trusted neighbor, and does not point to an IP address that already exists for different ID's multiple times, the method opportunistically verifies ownership of the ID certificate at the peer node's IP address. That is, the verification of ownership only occurs when the advertiser of the ID is the owner of that ID (or when the ID is to be used). If any of the above cannot be completed successfully, the address record is discarded.

    摘要翻译： 在对等通信系统中用于确保有效连接的方法以安全的方式进行包括以下步骤：接收包括ID证书的对等节点的地址记录。 验证和检查ID证书以验证身份证明书尚未过期。 此外，该方法确定接收到地址记录的节点是否被信任，并且包括在证书中的IP地址的实例数量已经存储在高速缓存中。 当上述内容成功完成时，即证书是有效的，未过期的，由信任的邻居提供，并且不指向多次已经存在于不同ID的IP地址，该方法机会地验证身份证书的所有权 在对等节点的IP地址。 也就是说，所有权的验证仅在ID的广告商是该ID的所有者时（或当使用该ID时）发生。 如果上述任何一个都无法成功完成，地址记录将被丢弃。

    Wireless device discovery and configuration
    5.
    发明授权
    Wireless device discovery and configuration 有权
    无线设备发现和配置

    公开(公告)号：US07616594B2

    公开(公告)日：2009-11-10

    申请号：US11143385

    申请日：2005-06-02

    申请人： David A. Roberts ,  Amer A. Hassan ,  Abhishek Abhishek ,  Christian Huitema ,  Glenn Ward ,  Scott A. Manchester ,  Noel W. Anderson

    发明人： David A. Roberts ,  Amer A. Hassan ,  Abhishek Abhishek ,  Christian Huitema ,  Glenn Ward ,  Scott A. Manchester ,  Noel W. Anderson

    IPC分类号： H04B7/00

    CPC分类号： H04W48/14 ,  H04W8/245 ,  H04W48/20 ,  H04W60/00

    摘要： A wireless device that desires to be connected to a wireless network broadcasts itself and its capabilities to a network using an information element. The information element is provided with frames, such as management frames, in a channel that is not protected or encrypted. The information element is forwarded to one or more potential registrar devices. One of the registrar devices then provides configuration information to the enrollee, for example as a registrar information element. The configuration information may be passed out of band or in band, and may be passed using cryptography, which may involve public key cryptography, encryption with a PIN, or some other type of secure exchange.

    摘要翻译： 希望连接到无线网络的无线设备使用信息元素向网络广播自身及其能力。 信息元素在未被保护或加密的信道中被提供有诸如管理帧的帧。 信息元素被转发到一个或多个潜在的注册器设备。 然后，其中一个注册器设备向注册者提供配置信息，例如作为注册器信息元素。 配置信息可以被带外或带外传出，并且可以使用可能涉及公共密钥加密，PIN加密或某种其他类型的安全交换的加密来传递。

    Method for establishing and maintaining a shared view of time in a peer-to-peer network
    10.
    发明授权
    Method for establishing and maintaining a shared view of time in a peer-to-peer network 失效
    在对等网络中建立和维护时间共享视图的方法

    公开(公告)号：US07689720B2

    公开(公告)日：2010-03-30

    申请号：US10702405

    申请日：2003-11-05

    申请人： Jeremy L. Dewey ,  Christian Huitema ,  Xiaohai Zhang

    发明人： Jeremy L. Dewey ,  Christian Huitema ,  Xiaohai Zhang

    IPC分类号： G06F15/16 ,  G06F15/177

    CPC分类号： H04L67/104 ,  H04L67/1095 ,  H04L69/28

    摘要： A shared concept of time, called “graph time,” is agreed upon by all nodes within a graph. Each node maintains its own local delta representative of a difference in the node's system clock and graph time. Upon connecting to a neighbor node in a graph, a node is sent graph time as perceived by the neighbor node. In accordance with an embodiment, the node assumes that the lag time in receiving the graph time from the neighbor node is one-half of the lag time between the request for the connection and the receipt of the graph time. Graph time as sent by the neighbor node is added to one-half of the total delay and the sum is subtracted from the node's system time to calculate the delta for the node requesting connection.

    摘要翻译： 一个共享的时间概念，称为“图形时间”，由图中的所有节点同意。 每个节点维护其本身的局部增量，表示节点的系统时钟和图形时间的差异。 在连接到图中的邻居节点时，节点被发送图形时间，如邻居节点所感知的。 根据实施例，节点假设从邻居节点接收图形时间的滞后时间是连接请求与图形时间的接收之间的滞后时间的一半。 由相邻节点发送的图形时间被添加到总延迟的一半，并且从节点的系统时间中减去总和以计算请求连接的节点的增量。