公开(公告)号：US20140313898A1

公开(公告)日：2014-10-23

申请号：US14256848

申请日：2014-04-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung Ho YAE ,  Nam Seok KO ,  Sung Kee NOH ,  Sung Jin MOON ,  Jong Dae PARK ,  Woo Sug JUNG ,  Tae Soo CHUNG ,  Hwan Jo HEO

IPC: H04L12/851

CPC classification number: H04L47/2441 ,  H04L47/2408

Abstract: Disclosed are a method for delivering emergency traffic in a SDN based network and an apparatus performing the same. A method for delivering emergency traffic, performed in a controller, may comprise generating an emergency code for delivering the emergency traffic when an emergency state corresponding to a predefined type occurs; transmitting the emergency code to a first OpenFlow switch connected to a transmitting terminal transmitting the emergency traffic; and transmitting a message directing an update of the emergency code to at least one OpenFlow switch included in a forwarding path of the emergency traffic. Therefore, when an emergency state occurs in a network, emergency traffic corresponding to the emergency state may be delivered efficiently, and stabilities of network management and service qualities may be guaranteed accordingly.

Abstract translation: 公开了一种用于在基于SDN的网络中传送紧急业务的方法和执行其的装置。 一种用于在控制器中执行的紧急通信的方法可以包括：当发生与预定类型相对应的紧急状态时，生成用于传送紧急业务的紧急代码; 将紧急代码发送到连接到发送紧急业务的发送终端的第一OpenFlow交换机; 以及将紧急代码的更新指示给包括在所述紧急业务的转发路径中的至少一个OpenFlow交换机的消息。 因此，当网络发生紧急状态时，可以有效地发送对应于紧急状态的紧急通信，可以相应地保证网络管理和服务质量的稳定性。

公开(公告)号：US20200301944A1

公开(公告)日：2020-09-24

申请号：US16817961

申请日：2020-03-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Hyun LEE ,  Sung Kee NOH ,  Hwan Jo HEO ,  Nam Seok KO

IPC: G06F16/27 ,  G06F16/22 ,  G06F16/23

Abstract: An off-chain data storage method and apparatus for supporting the integrity and capacity scalability of a data object stored in an off-chain storage. The off-chain data storage method includes collecting a plurality of transactions for a plurality of data objects, creating a root transaction on the basis of a Merkle root of a Merkle tree created based on the collected transactions, and storing the root transaction in a blockchain storage.

公开(公告)号：US20150215277A1

公开(公告)日：2015-07-30

申请号：US14602590

申请日：2015-01-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hwan Jo HEO

IPC: H04L29/12 ,  H04L29/08 ,  H04L29/06

CPC classification number: H04L61/2567 ,  H04L61/2514 ,  H04L61/255 ,  H04L67/146

Abstract: Provided is a network address translation (NAT) apparatus including: a NAT unit translating an address so as for a client and a server to communicate with each other through an outside network by referring to a NAT table that manages an inside IP address and an outside IP address mapped to the inside IP address; and a cookie proxy unit providing a cookie to the client by referring to a connection cookie table that manages a cookie corresponding to the outside IP address when there is a cookie request from the client.

Abstract translation: 提供了一种网络地址转换（NAT）装置，包括：NAT单元，通过参考管理内部IP地址和外部的NAT表，通过外部网络来翻译地址以使客户端和服务器彼此通信 IP地址映射到内部IP地址; 以及一个cookie代理单元，当客户端有一个cookie请求时，通过参考一个管理与外部IP地址相对应的cookie的连接cookie表来向客户端提供cookie。

公开(公告)号：US20150215289A1

公开(公告)日：2015-07-30

申请号：US14604355

申请日：2015-01-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hwan Jo HEO

IPC: H04L29/06

CPC classification number: H04L63/0421 ,  H04L63/0414 ,  H04L63/1458

Abstract: Provided is a method for hiding a server address including: requesting, by a client, communication with a server to a contact point through a first network path; requesting, by the contact point, communication with the client to the server; and communicating, by the server and the client, with each other through a second network path by encrypting a server address.

Abstract translation: 提供了一种用于隐藏服务器地址的方法，包括：由客户端通过第一网络路径请求与服务器的通信到联系点; 在联络点请求与客户端通信到服务器; 并且由服务器和客户机通过加密服务器地址通过第二网络路径进行通信。

公开(公告)号：US20140112150A1

公开(公告)日：2014-04-24

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: 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。

公开(公告)号：US20140082135A1

公开(公告)日：2014-03-20

申请号：US13941083

申请日：2013-07-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Woo Suk JUNG ,  Jong Dae PARK ,  Tae Soo CHUNG ,  Byung Ho YAE ,  Sung Kee NOH ,  Sung Jin MOON ,  Nam Seok KO ,  Hwan Jo HEO

IPC: H04L29/08

CPC classification number: H04L67/02 ,  H04L67/1002 ,  H04L67/1029 ,  H04L67/2852

Abstract: The present invention provides content providing apparatus and method and a content providing system which maintains a compatibility with an IP network and deliver a content with a complete distributed architecture excluding the content synchronizing process and the request routing process which delivers the content.

Abstract translation: 本发明提供了内容提供装置和方法以及内容提供系统，其保持与IP网络的兼容性，并且提供具有完整的分布式架构的内容，不包括内容同步处理和递送内容的请求路由进程。

公开(公告)号：US20210135879A1

公开(公告)日：2021-05-06

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

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.

公开(公告)号：US20200301894A1

公开(公告)日：2020-09-24

申请号：US16776737

申请日：2020-01-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hwan Jo HEO ,  Sung Kee NOH ,  Chang Hyun LEE ,  Nam Seok KO

IPC: G06F16/182 ,  G06F16/13 ,  H04L9/06

Abstract: Provided are an electronic device and method for managing a decentralized identifier (DID) and more specifically a device and method for managing a DID by giving authority over the DID to a user according to a priority level selected by the user.

公开(公告)号：US20190260714A1

公开(公告)日：2019-08-22

申请号：US16261620

申请日：2019-01-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hwan Jo HEO

IPC: H04L29/06 ,  H04L12/24 ,  H04L12/947

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.

公开(公告)号：US20140307605A1

公开(公告)日：2014-10-16

申请号：US14250323

申请日：2014-04-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Kee NOH ,  Nam Seok KO ,  Woo Sug JUNG ,  Tae Soo CHUNG ,  Sung Jin MOON ,  Hwan Jo HEO ,  Byung Ho YAE ,  Jong Dae PARK

IPC: H04W52/02 ,  H04W40/14

CPC classification number: H04W52/0219 ,  H04W40/14 ,  H04W84/18 ,  Y02D70/34

Abstract: There are provided a data transmission method of a multi-hop network and a device using the same. The data transmission method of the multi-hop network according to the invention may include receiving information on the multi-hop network, receiving a predetermined desired communication reliability (DCR) of data transmission from a source node to a sink node, determining a single-hop packet transmission rate of each node from the source node to the sink node satisfying the predetermined desired DCR based on the information on the multi-hop network, and notifying each node configuring the multi-hop network of the single-hop packet transmission rate of each of the nodes. In the method and device according to the invention, it is possible to satisfy the DCR required for the multi-hop network and decrease energy consumption by minimizing the total number of transmitted packets.

Abstract translation: 提供了一种多跳网络的数据传输方法及其使用方法。 根据本发明的多跳网络的数据传输方法可以包括在多跳网络上接收信息，接收从源节点到汇聚节点的数据传输的预定期望通信可靠性（DCR） 基于多跳网络上的信息，从源节点到汇聚节点的每个节点的跳数分组传输速率满足预定的期望DCR，并且通知构成多跳网络的每个节点的单跳分组传输速率为 每个节点。 在根据本发明的方法和装置中，可以满足多跳网络所需的DCR并且通过使发送的分组的总数最小化来降低能量消耗。