Random number generation method, block chain node, system and medium

A blockchain and random number technology, applied in random number generators, payment systems, payment architectures, etc., can solve problems such as uncontrollable and unpredictable random numbers

Active Publication Date: 2020-02-21
SHENZHEN THUNDER NETWORK TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]The main purpose of the present invention is to provide a random number generation method, blockchain node, system and medium, which can solve the problem of random number generation, and the generated random number cannot Predictable, uncontrollable, and fairly recognized by all parties

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  • Random number generation method, block chain node, system and medium
  • Random number generation method, block chain node, system and medium
  • Random number generation method, block chain node, system and medium

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Embodiment Construction

[0097] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0098] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and are used only for Descriptive purposes, and should not be understood as indicating or implying their relative importance or implying the number of technical features indicated. Thus, the features defined as ...

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Abstract

The invention provides a random number generation method, a block chain node, a system and a medium. The method comprises the following steps: constructing M public and private key fragment pairs of each node in N nodes participating in consensus based on a verifiable key sharing mechanism; calculating N numerical values corresponding to the code of each node and sending the N numerical values tothe node conforming to the corresponding code; when a block needs to be consensus, synthesizing a first signature of each node and constructing a prepare vote of each node; constructing a unique public key by utilizing the jth section of public key fragment of each block chain node participating in consensus; when the number of the nodes passing the verification of the prepare voting reaches M, constructing a second signature by utilizing the prepare voting of the M nodes; validating the second signature to be determined as a random number. According to the invention, the random number can begenerated in combination with a verifiable key sharing mechanism and a preset signature algorithm, and the random number has decentralization, uncontrollability, unpredictability, verifiability and real-time availability.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a method for generating random numbers, a block chain node, a system and a medium. Background technique [0002] The generation of random numbers is a very important technical issue in the blockchain field. Random numbers are used in many aspects of blockchain technology solutions, such as: blockchain-based games, lottery Dapps (Decentralized Applications, decentralized applications), and some blocks that use random numbers as the basis for selecting blocks chain program, etc. A good random number should be unpredictable, uncontrollable and notarizable. [0003] In the prior art solutions, the generated random numbers either have only some of the above-mentioned characteristics, or are expensive and relatively complicated to use. Contents of the invention [0004] The main purpose of the present invention is to provide a random number generation method, blockchain node,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58G06Q20/38
CPCG06F7/58G06Q20/3827G06Q20/3829G06Q20/3825
Inventor 仵小勇
Owner SHENZHEN THUNDER NETWORK TECH
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