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Construction Method of Ring Editable Blockchain

A construction method, blockchain technology, applied in structured data retrieval, encryption devices with shift registers/memory, digital transmission systems, etc. Chain application prospects are limited and other issues, to achieve the effect of improving scalability and expanding application scenarios

Active Publication Date: 2021-05-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, once a certain block needs to be re-edited, it is necessary to traverse all the blockchains after the block, and the calculation caused by editing is huge (especially considering the length of the current blockchain, tens of thousands of blocks The difficulty and complexity of block chain traversal)
In addition, the editable blockchain is based on the traditional chained blockchain, which cannot achieve better functional expansion
Therefore, based on the above reasons, the application prospect of editable blockchain is limited

Method used

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  • Construction Method of Ring Editable Blockchain

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Embodiment Construction

[0045] Such as figure 1 The construction method of the ring-type editable block chain of the present invention shown includes:

[0046] A. Initialization:

[0047] A1. Select the group G whose generator is g and group order is q according to the security parameter λ;

[0048] A2. Set the hash function as: H 1 :{0,1} * →G and H 2 :{0,1} * → Z q , where H 1 As the first hash function, the function is to form a string {0,1} of any length composed of 0 or 1 * Mapped to an arbitrary element of the group G, * means the string {0,1} is of any length, H 2 As the second hash function, the function is to form a string {0,1} of any length composed of 0 or 1 * Mapped to the integer group Z of order q consisting of (0,1,…,q-1) elements q Above, Z represents the integer group;

[0049] A3. Output system public parameters P=1 ,H 2 >

[0050] A4. Generate initial block B 1 (Genesis Block), write the system public parameter P into the initial block B 1 .

[0051] B. Generate ke...

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Abstract

The present invention relates to a construction method of a ring-type editable block chain, including: A. Initialization: output system public parameters and initial blocks through a hash function according to security parameters; B. Generating keys: obtain user public parameters according to system public parameters private key x i and public key y i ; C. Generate a ring-type editable block chain: record the transaction information into the block, arrange each block according to the generation time, and connect the last block arranged with the initial block to form a ring-type editable block chain ;According to the ring-type editable block chain to get the public key set, where each block corresponds to a public key y i , each public key y i corresponds to a private key x i . The present invention provides efficient management and editing of the block chain, can edit the block chain in batches, and supports batch deletion of blocks on the block chain. And after performing bulk edits, the ring structure of the blockchain remains unchanged.

Description

technical field [0001] The invention relates to the field of network security, in particular to a construction method of a ring-type editable block chain. Background technique [0002] The concept of blockchain was first formally proposed in 2008, and it can be used to realize public ledgers and unchangeable transaction records in a decentralized environment. [0003] The traditional blockchain adopts a chain structure, that is, new blocks are inserted from the end of the chain. However, blockchains currently face issues of storage consumption and scalability. That is, the data content of the blockchain is too large to be convenient for storage, and the block structure is single, so it cannot be further expanded from the chain structure to support more diversified services and functions. In order to solve this problem, there are currently several research projects, such as the Lightning Payment Chain, which is used to solve the slow payment and scalability problems of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/06H04L9/08G06F16/22
CPCG06F16/2228H04L9/0643H04L9/0861H04L9/0869
Inventor 张小松牛伟纳黄可杨涵麟杨坤卢臻
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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