Transaction and consensus combined intelligent service transaction blockchain reputation management method and system

An intelligent service and blockchain technology, applied in the blockchain field, can solve the problem that the normal operation of the blockchain system cannot be guaranteed, the construction of the reputation system is not complete, the consensus mechanism or the reputation system does not comprehensively consider user behavior and consensus behavior, etc. question

Active Publication Date: 2020-06-05
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology

[0005] However, none of the reputation-based consensus mechanisms or reputation systems used in existing blockchains fully considers user behavior and consensus behavior during transactions.
Moreover, in the existing reputation-based consensus mechanism, the construction of the reputation system is not complete enough to guarantee the normal operation of the blockchain system

Method used

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  • Transaction and consensus combined intelligent service transaction blockchain reputation management method and system
  • Transaction and consensus combined intelligent service transaction blockchain reputation management method and system
  • Transaction and consensus combined intelligent service transaction blockchain reputation management method and system

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Embodiment Construction

[0059] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below through specific embodiments and accompanying drawings.

[0060] figure 1 It is a schematic diagram of the intelligent service transaction block chain reputation management method combining transaction and consensus of the present invention. Among them, BlockHeader r Indicates the block header of the transaction block; TransactionList r Indicates the transaction list, CERT r Indicates the signature of the consensus group.

[0061] figure 2 It is a transaction structure diagram of smart service transactions. Among them, Req indicates the message format in which the buyer first sends a service request to the service provider, and Res is the reply message returned by the service provider to the buyer, (Res, R T , σ'') is the transaction form stored on the final blockchain. figure 2 Among them, pk ...

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Abstract

The invention discloses a transaction and consensus combined intelligent service transaction blockchain reputation management method and system. The method comprises the steps: generating members in aconsensus group of a current round of intelligent service transaction blockchain system; generating a leader candidate of the round; enabling each leader candidate to pack all transactions of the round into a block and send the block and the certificate to a consensus group; enabling the consensus group member to operate a reputation-based consensus mechanism and then publish the blocks to the blockchain; and enabling the leader to update the reputation change of the round into the reputation block and publishes the reputation block. According to the method, a verifiable random function is used for generating a leader, so that computing power waste is avoided, and part of nodes with relatively high reputation are selected to implement a consensus mechanism to reduce system load and network flow; the reputation score affects the weight of the voting node in the consensus, so the node with a higher reputation value can obtain rewards more possibly through a weighted sampling algorithm,the reputation chain is used for storing and updating the reputation of the node, and a trusted third party is not needed to manage the reputation.

Description

technical field [0001] The invention relates to a blockchain reputation management method and system for smart service transactions combined with transactions and consensus, and belongs to the field of blockchains. Background technique [0002] With the stable operation and development of Bitcoin, the basic technology blockchain of Bitcoin has gradually attracted extensive attention from the industry and academia. In recent years, the nature and characteristics of blockchain technology make it not only suitable for digital cryptocurrency fields such as Bitcoin, but also suitable for more fields that require the establishment of distributed, point-to-point trust relationships, such as smart service transactions. [0003] The consensus mechanism is the core technology of the blockchain, and mainstream blockchain platforms such as Bitcoin and Ethereum rely on the continuous mining of miners distributed all over the world to maintain the normal operation of the system. Accordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/23G06F16/27G06Q40/04
CPCG06F16/2365G06F16/27G06Q40/04Y02D10/00
Inventor 孙优章睿薛锐苏倩倩
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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