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91results about How to "Reduce the number of messages" patented technology

Byzantium fault tolerance method and implementation system thereof

The invention discloses a Byzantium fault tolerance method which comprises a node selection step, a proposal step, an endorsement step, a confirmation step and a block storage step, wherein in the node selection step, at least proposal nodes, endorsement nodes and confirmation nodes are selected from a blockchain network; in the proposal step, the proposal nodes construct new alternative blocks; in the endorsement step, the endorsement nodes carry out verification on the received alternative blocks, then carry out priority ranking on the alternative blocks and carry out endorsement on an alternative block with the highest priority; in the confirmation steps, if an alternative block is endorsed by a preset number of endorsement nodes in preset time, the confirmation nodes carry out confirmation on the alternative block; and in the block storage step, if an alternative block is confirmed by a preset number of confirmation nodes in preset time, the alternative block completes the consensus, and all the nodes in the blockchain network store the block which completes the consensus. The invention further discloses an implementation system of the Byzantium fault tolerance method. According to the invention, continuous operation in an extreme case can be ensured, and the Byzantium fault tolerance method and the implementation system thereof are beneficial for enlarging the scale of theblockchain network.
Owner:上海分布信息科技有限公司

A multiple-time identity certification system and method base on quantum communication network with time stamp as random number

The invention discloses a multiple-time identity certification system and method base on quantum communication network with time stamp as random number. The system includes a client A, a client B anda quantum network service station, when the client A applies for ticket to the client B, the time stamp is generated by the client B and sent to the quantum network service station, the ticket is generated by utilizing the time stamp and the session key through the quantum network service station, and the ticket is distributed to the client A and is distributed to the client B through the client A; the session key is used for enforcing the enciphering communication between the client A and the client B and is synchronously generated between the client A and the quantum network service station;and each client is configurated with a quantum secret key card used for generating true random number as the certification identification during the ticket distribution and the using of the ticket. The multiple-time certification is enforced based on the quantum communication network with time stamp as random number, furthermore the safety is improved, the generation mode of the session key is improved, and information transfer in identity certification is reduced.
Owner:RUBAN QUANTUM TECH CO LTD

Train communication network architecture based on the Ethernet, method and rail train

The invention provides a train communication network architecture based on the Ethernet. The train communication network architecture comprises an Ethernet marshalling network; an Ethernet train backbone network which comprises a first network plane and a second network plane, physical layers of the first network plane and the second network plane are mutually independent, and the first network plane and the second network plane share one Ethernet marshalling network, wherein the first network plane and the second network plane are respectively connected in series with two Ethernet train backbone network nodes in each train, each Ethernet train backbone network node is provided with an ETBN switch, and the ETBN switches are connected with the Ethernet marshalling network. The invention further provides a train communication method and a rail train adopting the network architecture. According to the train communication network architecture, the method and the rail train provided by the invention, the number of nodes and the number of messages in initial operation of the train can be effectively reduced, the influence of fault points on train operation is reduced, and safe and reliable train operation is ensured.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

Parallelization Byzantine fault tolerance method applied to block chain consensus mechanism

The invention discloses a parallelization Byzantine fault tolerance method applied to a blockchain consensus mechanism, and the consensus algorithm comprises a plurality of consensus partitions running in parallel at a bottom layer and independent verification partitions running at an upper layer, and the consensus partitions and the independent verification partitions jointly form a layered parallelization consensus verification system. The underlying consensus partitions respectively, independently and parallelly receive task requests (a pre-preparation stage, namely a Pre-prepare stage); and then, a message request service (a preparation stage, namely a Prepart stage) is executed, and meanwhile, signature of an execution result is achieved by adopting an aggregation signature algorithmin an execution process so as to achieve the purposes of reducing message complexity and improving system throughput. Besides, according to the algorithm design, the Commit stage message of the current consensus process and the Prepare stage message of the next consensus process are combined and sent, so that the purposes of compressing the communication rounds and reducing the communication overhead are achieved, the throughput of the system is further improved, and the average time delay is reduced.
Owner:宙通科技(南京)有限公司

Pluggable information bus device based on subscribing mode and realizing method thereof

InactiveCN101552735AReduce the number of messages and the number of channelsReduce channel maintenance workloadSpecial service provision for substationSystem usageInformation transmission
The invention discloses a pluggable information bus device based on a subscribing mode and a realizing method thereof. The pluggable information bus device based on a subscribing mode comprises an information center and applying programs, wherein the information center is used for receiving the registration and subscribing information of an applying program and sending information to the applying program and also sends information and receives the information sent from the applying program; and the applying programs are used for sending the registration information, sending information to the information center and receiving information. After the information center technology of the invention is used, the information amount and the signal path quantity on the network in the utilization of the applying system are greatly reduced, the workload of signal path maintenance is relieved, and the expansibility of the system is greatly reinforced. The technical expansion and the multiplexing of the information transit station are simple and can be conveniently operated and realized in the solution scheme to achieve the purpose of complex information transmission among the applying programs.
Owner:SHANGHAI BAOSIGHT SOFTWARE CO LTD

Message processing method and system framework

The invention discloses a message processing method and a system framework. The system framework comprises network devices, network device management systems and an SDN controller. The SDN controller is connected with the M network device management systems. The M network device management systems are connected with the N network devices respectively, wherein M and N are both positive integers. The message processing method applied to the message processing system framework includes the steps of receiving messages through the network devices, sending the messages to the corresponding network device management systems when the messages are the first packet of data messages, receiving the first packet of data messages sent by the corresponding network devices through the network device management systems, determining forwarding routes of the first packet of data messages by searching a local route database, and forwarding the first packet of data messages according to the forwarding route, wherein the local route database stores routes, calculated and sent by the SDN controller in advance, between virtual machines in a corresponding virtual network. Thus, the performance consumption of the SDN controller is lowered, and the scale of the network controlled by the SDN controller can be easily improved.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Block chain consensus performance optimization method

The invention discloses a block chain consensus performance optimization method. The method comprises the steps of constructing a credibility data set of each consensus node according to attributes of each consensus node in a block chain; performing classification evaluation on the credibility data set through a trained C4.5 classification model to confirm the credibility level of each consensus node; giving corresponding voting weights to the consensus nodes according to the credibility levels, wherein the higher the credibility levels of the consensus nodes are, the larger the corresponding voting weights are; selecting a main node, and managing and controlling the Byzantine problem occurring in the operation process of the main node by using the intelligent contract; sending the block request log of the consensus node to a Kafka message queue, and completing a check point protocol based on FIFO characteristics; and detecting the consensus performance of the block chain system by using a HyperledgerFabric alliance chain. The problem of frequent view switching due to the fact that a dishonest node serves as a main node and the problem of overlarge network overhead due to the fact that a garbage collection mechanism is frequently started in traditional PBFT are solved.
Owner:SOUTHWEST FORESTRY UNIVERSITY

Method for establishing local exchange, core network equipment and base station subsystem

The invention discloses a method for establishing local exchange, core network equipment and a base station subsystem, wherein the method for establishing the local exchange comprises the following steps of: receiving a first message which is from a first base station subsystem and requests for switching; and determining that two calls forming a conversation after switching is finished are both positioned in a second base station subsystem according to the first message requesting for switching, sending a second message requesting for switching to the second base station subsystem when the condition of the local exchange is satisfied, and indicating the second base station subsystem to establish the local exchange for the two calls after the switching is succeeded. Because an additional flow for establishing the local exchange needs not to be added in the technical scheme of the invention, the local exchange is realized while switching, thereby saving the execution time of the flow and saving the message quantity of an A interface. Because a single flow is not needed for establishing the local exchange, an adverse influence on the conversation quality can not be generated due to the establishment of the local exchange, thereby improving the user experience.
Owner:HUAWEI TECH CO LTD

Improved Kerberos identity authentication system and method based on a quantum communication network

The invention discloses an improved Kerberos identity authentication system and method based on a quantum communication network. The improved Kerberos identity authentication system comprises a user terminal A, a user terminal B and a quantum network service station. The user terminal A sends a first authentication request for identity authentication with the user terminal B to the quantum networkservice station. The quantum network service station sends proof to the user terminal B in response to the first authentication request and also sends proof to the user terminal A through the user terminal B. The user terminal A and the user terminal B generate tickets and exchange the tickets on the basis of the obtained proof to implement the first authentication. The user terminal A also sendsa second authentication request to the user terminal B according to the ticket obtained from the user terminal B, and the user terminal B responds to the second authentication request and exchanges the tickets with the user terminal A to perform the second authentication. Based on the quantum communication network, the security of the improved Kerberos identity authentication system and method are further improved.
Owner:RUBAN QUANTUM TECH CO LTD
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