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1. 发明授权

US11595187B2 Communication device and communication method used in decentralized network 有权
公开(公告)号：US11595187B2
公开(公告)日：2023-02-28
申请号：US16654385
申请日：2019-10-16
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： G06F3/06 , H04L9/06 , H04L9/00
摘要： A communication device provides data to a data acquiring node based on a consensus of a plurality of participating nodes. The communication device includes a processor. The processor divides the data into N data components. N is an integer equal to or larger than two. When the N data components are stored in different storage areas, the processor encrypts addresses of storage areas in which the data components are respectively stored with respective public keys of N participating nodes among the plurality of participating nodes. The processor transmits access right information that indicates the data acquiring node has a right to access the data and the encrypted N addresses to the plurality of participating nodes.

2. 发明授权

US10097515B2 Firewall control device, method and firewall device 有权
公开(公告)号：US10097515B2
公开(公告)日：2018-10-09
申请号：US15251706
申请日：2016-08-30
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： H04L29/06 , G06F9/455
摘要： A firewall control device controls a plurality of firewall devices provided between a core network and a plurality of sub-networks respectively, the firewall control device is configured to receive, from the plurality of firewall devices, data amount information indicating an amount of the data discarded in the plurality of firewall devices respectively and node information indicating a transmission source node of the discarded data, identify, based on the data amount information and the node information, a data flow including the discarded data which is transmitted from an information processing device indicated by the node information and of which total amount of the discarded data exceeds a threshold value, and set, in a first firewall device which is included in the plurality of firewall devices and which is coupled to the information processing device, a first discarding flow entry defining discarding of data of the identified data flow.

3. 发明授权

US11115325B2 Control device, transfer device, and control method 有权
公开(公告)号：US11115325B2
公开(公告)日：2021-09-07
申请号：US16511594
申请日：2019-07-15
申请人： FUJITSU LIMITED
发明人： Dai Suzuki , Satoshi Imai
IPC分类号： H04L12/741 , H04L12/721
摘要： A control device that controls a transfer device, includes a memory and a processor coupled to the memory and configured to evaluate, for each of a plurality of processing rules to be used to process a packet in the transfer device, a processing load caused upon identification of a packet matching the processing rule, based on the type of an application requirement identifying the packet to which the processing rule is applied, generate, as a table to be used by the transfer device, a rule table storing the plurality of processing rules in order from the lowest processing load to the highest processing load, and transmit, to the transfer device, a control packet to request the transfer device to set the rule table.

4. 发明申请

US20170063706A1 METHOD AND COMMUNICATION SYSTEM 审中-公开
标题翻译：方法与通信系统
公开(公告)号：US20170063706A1
公开(公告)日：2017-03-02
申请号：US15206825
申请日：2016-07-11
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： H04L12/823 , H04L29/06
CPC分类号： H04L47/32 , H04L63/0218 , H04L63/0263 , H04L69/22
摘要： A method using a communication system including a first information processing device, a first communication device, a second information processing device, a second communication device, and a control device controlling the first communication device and the second communication device, the method includes transmitting, from the first information processing device, a first packet which belongs to a first flow, a destination node of the first packet being the second information processing device, receiving, by the second communication device, the first packet, and discarding the first packet, identifying the first information processing device which is a transmission source node of the first packet, transmitting a second packet of which a destination node is the first information processing device, receiving, by the first communication device, the second packet, setting the first rule to the first communication device.
摘要翻译：一种使用包括第一信息处理设备，第一通信设备，第二信息处理设备，第二通信设备以及控制第一通信设备和第二通信设备的控制设备的通信系统的方法，包括：从所述第一信息处理装置，属于第一流的第一分组，所述第一分组的目的地节点是所述第二信息处理装置，由所述第二通信装置接收所述第一分组，并且丢弃所述第一分组，第一信息处理装置，其是第一分组的发送源节点，发送目的地节点是第一信息处理装置的第二分组，由第一通信装置接收第二分组，将第一规则设置为第一分组通讯装置

5. 发明授权

US11522722B2 Communication apparatus and communication method 有权
公开(公告)号：US11522722B2
公开(公告)日：2022-12-06
申请号：US16990125
申请日：2020-08-11
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： H04L9/32 , H04L29/06 , G06F16/182 , G06F21/62
摘要： A communication apparatus configured to acquire information in a distributed ledger shared in a network, the communication apparatus includes a memory; and a processor coupled to the memory and configured to acquire one or more digital certificates used by a user of another apparatus to apply to the communication apparatus from the other apparatus, acquire type information that identifies a combination of the user and the type of information certified by the one or more digital certificates, by using the distributed ledger, acquire certificate issue history that is recorded in the distributed ledger in association with the type information, and determine whether the issue history contains information of another digital certificate that has not been acquired from the other apparatus.

6. 发明授权

US11469905B2 Device and method for processing public key of user in communication system that includes a plurality of nodes 有权
公开(公告)号：US11469905B2
公开(公告)日：2022-10-11
申请号：US16668122
申请日：2019-10-30
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： H04L29/06 , H04L9/32 , H04L9/30 , H04L9/40 , H04L9/00
摘要： A communication method is used in a communication system that includes a plurality of nodes. Two or more authentication nodes among the plurality of nodes respectively receive account information of a user and a public key of the user from the user. The two or more authentication nodes respectively transmit a massage that indicates the account information is correct and the public key of the user to the plurality of nodes when it is decided that the account information is correct. Each of the plurality of nodes registers the public key of the user in a public key list that stores public keys of users who have been allowed to participate in the communication system, when detecting according to messages received from other nodes that a specified number of authentication nodes or more have decided that the account information is correct.

7. 发明申请

US20170093797A1 FIREWALL CONTROL DEVICE, METHOD AND FIREWALL DEVICE 审中-公开
公开(公告)号：US20170093797A1
公开(公告)日：2017-03-30
申请号：US15251706
申请日：2016-08-30
申请人： FUJITSU LIMITED
发明人： Dai Suzuki
IPC分类号： H04L29/06
CPC分类号： H04L63/0254 , H04L63/0218 , H04L63/0263 , H04L63/029
摘要： A firewall control device controls a plurality of firewall devices provided between a core network and a plurality of sub-networks respectively, the firewall control device is configured to receive, from the plurality of firewall devices, data amount information indicating an amount of the data discarded in the plurality of firewall devices respectively and node information indicating a transmission source node of the discarded data, identify, based on the data amount information and the node information, a data flow including the discarded data which is transmitted from an information processing device indicated by the node information and of which total amount of the discarded data exceeds a threshold value, and set, in a first firewall device which is included in the plurality of firewall devices and which is coupled to the information processing device, a first discarding flow entry defining discarding of data of the identified data flow.

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