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37results about How to "Normal service" patented technology

Method and device for defending interest flooding attacks in information centric network

The invention provides a method and device for defending interest flooding attacks in an information centric network and relates to the field of network security. The method includes: statistically counting the entropy of the names of interest packets received by a router in the information centric network after different moments according to a preset window; using a cumulative sum algorithm to process the obtained entropy to obtain the accumulative values of the entropy at different moments; judging whether the accumulative values are smaller than a preset attack detecting threshold or not, if not, judging that interest flooding attacks are detected, and using a prefix determining algorithm based on relative entropy to search the prefix set of the names of the interest packets so as to obtain attack prefixes; generating data packets containing the attack prefixes according to the attack prefixes, and transmitting the data packets to the access router where an attacker is located according to the router information of the interest packets, containing the attack prefixes, recorded in the pending interest table of the router so as to allow the access router to perform corresponding access limitation on the received interest packets according to the attack prefixes in the data packets.
Owner:INST OF INFORMATION ENG CAS

Micro-service development management system and method supporting service upgrading version compatibility

The invention discloses a micro-service development management system and method supporting service upgrading version compatibility. The management system comprises a service interface management module used for designing a service interface in a micro-service application, controlling and managing a service version of the service interface, storing service interface description information and judging a registration service type, a service interface generating module used for generating a service component in the micro-service application meeting a service interface definition according to interface information of the designed service interface and a distributed version number, and a micro-service application upgrading module used for performing compatibility service upgrading on a registration service when the registration service is a compatibility upgrading service, and deleting an original version service interface of the compatibility upgrading service. The micro-service development management system and method has the advantages that by adding an interface compatibility processing capability for each micro-service application, and in combination with an independent version control mechanism, an interface binding relationship between micro-services is effectively eliminated, the success rate of service calling is greatly increased, and the service operation resource occupation rate is controlled.
Owner:DAREWAY SOFTWARE

Distributed database capacity reduction method and device, equipment and medium

The invention discloses a capacity reduction method and device for a distributed database, equipment and a medium. The method comprises the following steps: determining a data node to be subjected to capacity reduction from a plurality of data nodes, and determining a first target migration node to which a first copy data child node on the data node to be subjected to capacity reduction is to be migrated and a second target migration node to which a second copy data child node on the first target migration node is to be migrated; respectively migrating the first copy data sub-node to a first target migration node and the second copy data sub-node to a second target migration node; determining a third target migration node to which the first main data child node on the data node to be subjected to capacity reduction is to be migrated; and migrating the first main data child node to a third target migration node, and deleting the data node to be subjected to capacity reduction from the distributed database. According to the method and the device, the capacity of the distributed database is reduced through an online capacity reduction scheme, so that the distributed database does not need to interrupt service in the capacity reduction process, and the service can be normally provided.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Defense method and device for interest packet flooding attack in content-centric network

The invention provides a method and device for defending interest flooding attacks in an information centric network and relates to the field of network security. The method includes: statistically counting the entropy of the names of interest packets received by a router in the information centric network after different moments according to a preset window; using a cumulative sum algorithm to process the obtained entropy to obtain the accumulative values of the entropy at different moments; judging whether the accumulative values are smaller than a preset attack detecting threshold or not, if not, judging that interest flooding attacks are detected, and using a prefix determining algorithm based on relative entropy to search the prefix set of the names of the interest packets so as to obtain attack prefixes; generating data packets containing the attack prefixes according to the attack prefixes, and transmitting the data packets to the access router where an attacker is located according to the router information of the interest packets, containing the attack prefixes, recorded in the pending interest table of the router so as to allow the access router to perform corresponding access limitation on the received interest packets according to the attack prefixes in the data packets.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

An Electronic Whiteboard Data Sharing System Based on Subscription Information Publishing

The present invention provides an electronic whiteboard data sharing system based on subscription information publishing. By data communication connection between each data sharing device in the system, the electronic content data synchronization of the subscription publishing mechanism is performed between different data sharing devices. At the same time, distributed backup and storage of electronic whiteboard content data is also performed on different data sharing devices. Once the data sharing device as the information publisher has abnormal operation status, each corresponding information subscriber will start the corresponding subscription topic. The allocation and scheduling mechanism of information publishers and information subscribers in the type, the other information subscribers of the corresponding subscription topic type with normal operation status determine the new proxy information publisher according to the principle of the highest subscription priority, and execute the corresponding subscription topic on their behalf The type of electronic whiteboard content data release task reduces the probability of interruption of electronic whiteboard data sharing services, and improves the fluency and stability of information sharing services provided by the system.
Owner:CHONGQING RUICHANG TECH
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