Credible random number generation method and device based on alliance chain

Abstract

The invention provides a trusted random number generation method and device based on an alliance chain, applied to any under-chain service system for generating random numbers, and the generation method comprises the following steps: obtaining a random number request sent by a client for generating the random numbers; generating a parameter world state according to the random number request, and storing the parameter world state to the current block; random number parameters are recorded in the parameter world state; when the current block is in the state of generating the parameter world, the random number channel is the newly generated block; when a target block is generated in the random number channel, constructing a random number transaction; and according to the parameter world state, calling a random number smart contract through random number transaction to generate a final random number. Therefore, according to the method, the unpredictable deterministic credible factor which changes along with time is introduced, namely, the block hash value generated in the future at the moment of sending the random number request is introduced, so that the attack resistance of a calling party is improved, and the credible random number is generated.

Description

technical field [0001] The present application relates to the technical field of consortium chains, and in particular, to a method and device for generating trusted random numbers based on consortium chains. Background technique [0002] Applications of random numbers can be seen everywhere in daily life, such as sampling from a statistical population or grouping samples. Due to the fairness and transparency requirements of usage scenarios, random numbers need to be credible. Therefore, a strong anti-attack method is required to generate random numbers, so that the generation of random numbers cannot be intentionally manipulated. [0003] Among the existing random number generation methods, the most commonly used method is to pre-deploy a random smart contract on the blockchain, and input three sets of random sources, including: the current block hash of the chain, the contract address information, and the random number offline of the participants. , and obtain the final ra...

AI Technical Summary

Problems solved by technology

[0005] This application provides a method and device for generating trusted random numbers based on consortium chains, which can be used to solve the problem of introducing the control capability of the caller in the prior art, where the caller is forced to manipulate after being attacked, or actively maliciously manipulates the final generation The possibility of random numbers, resulting in unreliable technical problems of generated random numbers

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