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    Decentralized software-defined networking method and apparatus
    2.
    发明授权
    Decentralized software-defined networking method and apparatus 有权

    公开(公告)号：US11277385B2

    公开(公告)日：2022-03-15

    申请号：US16261620

    申请日：2019-01-30

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hwan Jo Heo

    IPC: H04L29/06 ,  H04L12/947 ,  H04L12/24 ,  H04L49/25 ,  H04L41/06

    Abstract: Disclosed is a method of operating a software-defined network (SDN) controller located in a decentralized SDN including a plurality of SDN switches and a plurality of SDN controllers, the method including receiving a transaction including network event information from at least one SDN switch of the plurality of SDN switches, determining a block generation entity with at least one other SDN controller based on a consensus algorithm, and, when the SDN controller is determined as the block generation entity, generating a block including the transaction and propagating the block to the at least one other SDN controller and the plurality of SDN switches. Also, a corresponding method of operating a SDN switch is disclosed.

    Method for providing quality of service in software-defined networking based network and apparatus using the same
    3.
    发明授权
    Method for providing quality of service in software-defined networking based network and apparatus using the same 有权
    在基于软件定义网络的网络中提供服务质量的方法和使用该网络的设备

    公开(公告)号：US09197568B2

    公开(公告)日：2015-11-24

    申请号：US14060459

    申请日：2013-10-22

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Nam Seok Ko ,  Hwan Jo Heo ,  Sung Kee Noh ,  Sung Jin Moon ,  Woo Sug Jung ,  Byung Ho Yae ,  Tae Soo Chung ,  Jong Dae Park

    IPC: H04L12/851

    CPC classification number: H04L47/24

    Abstract: Disclosed is a Quality of Service (QoS) providing method and apparatus in a software-defined networking (SDN) based network, the QoS providing method including receiving a first packet of a predetermined flow, searching for forwarding information corresponding to the packet and QoS rule information corresponding to the packet in a forwarding table and a QoS rule table, respectively, transmitting the packet to a controller if the forwarding information and the QoS rule information do not exist in the forwarding table and the QoS rule table, and generating a flow entry corresponding to the packet in a flow learning table based on forwarding information and QoS rule information that are received from the controller, thereby efficiently providing QoS.

    Abstract translation: 本发明公开了一种基于软件定义网络（SDN）的网络中的服务质量（QoS）提供方法和装置，所述QoS提供方法包括接收预定流量的第一分组，搜索对应于分组的转发信息和QoS规则 如果在转发表和QoS规则表中不存在转发信息和QoS规则信息，则将转发表中的分组对应的信息和QoS规则表分别发送到控制器，并且生成流入口 对应于基于从控制器接收的转发信息和QoS规则信息的流学习表中的分组，由此有效地提供QoS。

    Decentralized group signature scheme for credential systems with issuer anonymization
    4.
    发明授权
    Decentralized group signature scheme for credential systems with issuer anonymization 有权

    公开(公告)号：US11750404B2

    公开(公告)日：2023-09-05

    申请号：US17088998

    申请日：2020-11-04

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hwan Jo Heo ,  Hyun Jin Lee

    IPC: H04L9/32 ,  H04L9/08

    CPC classification number: H04L9/3255 ,  H04L9/0825 ,  H04L9/0838 ,  H04L9/0891 ,  H04L9/3257

    Abstract: A decentralized group signature method for an issuer-anonymized credential system includes (a) an initial system setup operation of defining elements of a group signature method and information that is generated and shared by each group member, (b) an initial group member setup operation, (c) a group member participation operation of adding a new group member to a group, (d) a group signature operation of putting a group signature on a specific message, (e) an operation of verifying the group signature, (f) an operation of removing anonymity from a group signature for a specific group member with agreement of group members, and (g) an operation of revoking a specific group member with agreement of the group members. Exclusive authority of a group manager is distributed to the group members.

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