A trusted certificate storage method and system based on graph structure

A graph-structured and credible technology, applied in the blockchain field, can solve problems such as data security supervision, and achieve the effect of solving supervision problems and linear expansion of certificate throughput.

Active Publication Date: 2022-06-17
PEKING UNIV
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Problems solved by technology

[0005] The present invention provides a trusted certificate storage method based on a graph structure and a trusted certificate storage system based on a graph structure to solve the problem of data security supervision in the process of large-scale sharing and exchange

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  • A trusted certificate storage method and system based on graph structure
  • A trusted certificate storage method and system based on graph structure
  • A trusted certificate storage method and system based on graph structure

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0040] Trusted attestation is often associated with the difficulty of being tamper-proof. The traditional so-called tamper-proof blockchain is not 100% guaranteed not to be tampered with. The traditional blockchain mostly adopts a single-chain structure to ensure the legality of transactions and avoid the double-spending problem. It is necessary to reach a consensus on the sequence between any two transactions. Therefore, the nodes of the entire network can only generate blocks in sequence, which is faster. slow. And the network-wide consensus mechanism of the traditional blockchain requires each participating node to store the full amount of data. However, the trusted certificate storage implemented by this network-wide conse...

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Abstract

The present invention provides a trusted certificate storage method and system based on a graph structure. During the process of initiating a transaction, each transaction-initiating node randomly selects a plurality of witness nodes from the network to witness the transaction; the witness nodes will The transaction data generated by witnessing the transaction is packaged to generate a block; the witness node randomly selects a plurality of storage nodes; the witness node sends the block to a plurality of the storage nodes; the storage node Blocks are stored; among them, for a transaction, all blocks of all witness nodes and all storage nodes form a directed acyclic graph DAG structure. The embodiment of the present invention adopts the directed acyclic graph DAG structure and the nRW consensus mechanism, which not only solves the supervision problem in the process of large-scale shared exchange, but also makes the throughput of the distributed ledger in the embodiment of the present invention increase with the number of nodes. The increase can be scaled linearly.

Description

technical field [0001] The invention relates to the technical field of blockchain, in particular to a graph structure-based credible proof storage method and a graph structure-based credible proof storage system. Background technique [0002] Data resources are the core force driving the development of the digital economy and a key element in improving the intelligence level and operational efficiency of the information society. They are regarded as strategic assets that determine future competitiveness. How to capitalize the huge data resources formed by the government, enterprises and institutions in the process of operation and make them become the "new oil" supporting the rise of the digital economy is a key challenge for the development of the digital economy. [0003] The realization of the value of data assets is a process of "moving" data. The safe and reliable flow, processing and integration of high-quality, high-availability, and high-effective data assets is an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q40/04G06Q20/38G06F21/64H04L67/1097
CPCG06Q40/04G06Q20/382G06F21/64H04L67/1097G06Q20/389G06F16/2379G06F16/9024H04L9/50
Inventor 黄罡朱晓旻景翔吴仪
Owner PEKING UNIV
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