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Multi-morphic derivable ring 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: 2020-09-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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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

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  • Multi-morphic derivable ring 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 present invention relates to a method for constructing a multi-form derivable ring block chain, including: A. Initialization, generating an initial block; B. Generating a key; C. According to the initial block, the calculation parameter c is obtained by selecting a random number and calculating 1 , to build a cyclic main chain D. According to the random number {α i} 1≤i≤m , calculate the parameters of the subchain {sc i} 1≤i≤m , derive a ring-shaped sub-chain E from the ring-shaped main chain. The starting block SB of the derived sub-chain 1 The pointer points to the ring main chain C n Block B in π , the second block SB of the subchain 2 The pointer of points to the starting block SB of the sub-chain 1 , and so on to make the block SB i pointer to SB i+1 , so that the ring-shaped main chain derives chain-like sub-chains. The method of the present invention effectively strengthens the functionality of the blockchain, enables the blockchain to accommodate more cryptographic schemes and functions such as ring signatures and group signatures, and effectively solves the problems of single functionality and poor scalability of the blockchain .

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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Patent Type & Authority Patents(China)
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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