Blacklist multi-party cross validation and sharing method and system
A cross-validation and blacklist technology, applied in the field of blockchain applications, can solve problems such as leakage of sensitive data, invasion of privacy, and blockchain capacity limitations, and achieve reliable data sharing systems, efficient retrieval functions, and breakthroughs in storage capacity limitations Effect
Pending Publication Date: 2020-11-06
朱玮
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Problems solved by technology
[0003] Achieving blacklist sharing among multiple agencies or within the industry has always been a challenge, including technical difficulties in sharing data among multiple parties and achieving data consistency, as well as concerns about leaking sensitive data and violating privacy
Blacklist sharing based on blockchain technology also has privacy issues. Even if the hash value is used to upload to the chain, there are also retrieval efficiency issues and the capacity limitation of the blockchain itself.
These problems make blacklist sharing difficult to be applied in all walks of life despite the urgent needs of the industry.
Method used
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Embodiment 2
[0097] The present invention also provides a blacklist multi-party cross-validation and sharing method, which is implemented based on the system in the above-mentioned embodiment 1, such as figure 2 Shown, specifically include the following steps
[0098] Obtain blacklist data, calculate and store it based on Bloom Filter, and retrieve and query the stored blacklist data to determine whether the blacklist data exists in the shared library;
[0099] Record the submission details of the blacklist data, and send it to the accounting node on the blockchain, so that the accounting node can be packaged into a block and delivered to each node;
[0100] Deploy smart contracts to manage nodes and consensus mechanisms on the blockchain.
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The invention discloses a blacklist multi-party cross validation and sharing system, which comprises: a Bloom Filter blacklist sharing library module used for acquiring blacklist data to carry out Bloom Filter-based operation and storage, and carrying out retrieval query on the stored blacklist data; the blacklist submission record sharing account book module that is used for recording submitted blacklist data detail information and sending the submitted blacklist data detail information to accounting nodes on a block chain, so that the accounting nodes are packaged into blocks and transmittedto each node; the public chain consensus management module that is used for deploying an intelligent contract on a public chain to perform node management and consensus mechanism management on the block chain. The advantages of the Bloom Filter technology in space efficiency, query efficiency and safety are utilized, the block chain technology is combined to achieve the blacklist sharing and efficient retrieval functions without damaging privacy, and the storage capacity limitation of the block chain is broken through; and data sharing and consensus among the participating nodes are constrained and automatically executed through the intelligent contract, so that a credible data sharing system is realized.
Description
technical field [0001] The present invention relates to the technical field of block chain application, specifically, a method and system for multi-party cross-verification and sharing of blacklists. Background technique [0002] Blockchain is an underlying technology brought by Bitcoin, which includes a series of technologies, such as asymmetric encrypted signatures, distributed ledgers, consensus mechanisms, peer-to-peer protocols, smart contracts, etc. Blockchain can realize value transfer, data consensus, and contract automation execution in a peer-to-peer network environment. The blockchain is divided into a public chain and an alliance chain. The public chain is an open structure, and any unfamiliar node can join; the alliance chain is a permissioned joining structure, and only approved nodes can participate in consensus and bookkeeping. [0003] Achieving blacklist sharing among multiple agencies or within the industry has always been a challenge, including technical...
Claims
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IPC IPC(8): G06Q20/38G06F21/62
CPCG06Q20/3825G06Q20/3829G06Q20/389G06F21/6209
Inventor 朱玮王燕冬郭强
Owner 朱玮