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Polymorphic derivable annular block chain construction method

A construction method and multi-morphic technology, applied in the field of network security, can solve problems such as poor scalability and single functionality of blockchain, and achieve the effect of enhancing functionality

Active Publication Date: 2019-10-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for constructing a multi-form derivable ring-shaped block chain to solve the problems of single functionality and poor scalability of the block chain

Method used

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  • Polymorphic derivable annular block chain construction method
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Embodiment Construction

[0042] Such as figure 1 The polymorphic derivable ring block chain construction method of the present invention shown includes:

[0043] A. Initialization: According to the security parameter λ, through the hash function, output the system public parameter P and the initial block B 1 (Genesis Block), including:

[0044] A1. Select the group G whose generator is g and group order is q according to the security parameter λ;

[0045] 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;

[0046] A3. Output system public parameters P=...

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Abstract

The invention relates to a polymorphic derivable annular block chain construction method, which comprises the following steps of: A, initializing and generating an initial block; b, generating a secret key; c, according to the initial blocks, obtaining a calculation parameter c1 by selecting a random number and calculating, and constructing a annular main chain D; according to a random number {alpha i}, i being greater than or equal to 1 and less than or equal to m, calculating a parameter {sci} of the sub-chain, wherein 1 < = i < = m; deriving an annular sub-chain E from the annular main chain, and pointing a pointer of a starting block SB1 of the derived sub-chain to a block Bpi in the annular main chain Cn, and pointing the pointer of the second block SB2 of the sub-chain to the initialblock SB1 of the sub-chain, and so on, pointing the pointer of the block SBi to SBi + 1, so as to enable the annular main chain to derive a chain-shaped sub-chain. According to the method provided bythe invention, the functionality of the blockchain is effectively enhanced, so that the blockchain can accommodate more password schemes and functions such as ring signature and group signature, andthe problems of single functionality and poor expansibility of the blockchain are effectively solved.

Description

technical field [0001] The invention relates to the field of network security, in particular to a method for constructing a multi-morphologically derivable ring 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. The traditional blockchain adopts a chain structure, that is, new blocks are inserted from the end of the chain. At present, the blockchain is facing the problem of storage consumption and scalability, that is, the data content of the blockchain is huge, it is not easy to store, and the block structure is single, and it cannot be further expanded from the chain structure, so that Support more diverse services and functions. At the same time, the sub-chain derivation structure is single, which cannot well support more blockchain application scenarios. Moreover, the sub-chain derived from the chain-t...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/08
CPCH04L9/3236H04L67/1044H04L67/1059H04L9/50
Inventor 张小松黄可牛伟纳杨涵麟杨坤卢臻
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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