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Signature generation method and a block chain account management method adopting the method

A technology of account management and block chain, which is applied in the field of signature generation method and block chain account management using this method, can solve the problems of not supporting ECDSA, unable to complete signature, high space occupancy rate, etc., to achieve consistent space occupation and success The effect of high efficiency and low space consumption

Inactive Publication Date: 2019-01-22
北京网录科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0013] 1. High space occupancy
[0014] 2. High transaction fees
[0015] 3. Poor fault tolerance, as long as a participant is offline, the signature cannot be completed
[0016] 4. Poor compatibility. Blockchains that do not support smart contracts or multi-signature scripts cannot use Schnorr signatures. Technical disadvantages:
[0017] 1. Poor compatibility, does not support ECDSA
[0018] 2. All participants must be online at the same time, poor fault tolerance

Method used

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with embodiment

[0041] The identity authentication of the blockchain account is completed through digital signature, and the algorithm adopted is ECDSA signature based on elliptic curve. Therefore, the core of blockchain account management is the generation method of digital signatures. This solution is based on the Lagrangian difference polynomial secret sharing algorithm, combined with multi-party calculations, and completes the thresholding of the ECDSA signature algorithm, thereby achieving the goal of multi-party management of blockchain accounts and improving the credibility and fault tolerance of account management. Hereinafter, the accounts generated and managed by this solution are collectively referred to as locked accounts.

[0042] The whole scheme includes three core algorithms: locked account generation algorithm, locked account signature algorithm, locked account key update algorithm,...

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Abstract

The invention discloses a signature generation method and a block chain account management method adopting the method. The signature generation method is based on an elliptic curve digital signature algorithm and is different from the original ECDSA signature algorithm. The account private key and the random number participate in the ECDSA signature process in the form of multi-party calculation.Compared with the current block chain account management mode, the invention has the advantages of low space consumption, consistent occupation of space with the common digital signature, low cost, high fault tolerance, high stability, high success rate and high capacitance, and can be used for the management of any account adopting the ECDSA signature algorithm.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a signature generation method and a block chain account management method adopting the method. Background technique [0002] Blockchain is a kind of data block chained into a specific data structure in chronological order, and a non-tamperable and non-forgeable decentralized shared ledger guaranteed by cryptography. It can safely store simple, secure and Sequential relationship, data that can be verified within the system. [0003] Blockchain has been applied to many fields such as finance, medical care and education. It writes application logic into smart contracts and deploys them on the blockchain. The user sends a transaction to the smart contract through its blockchain account, triggers the logic in the contract, performs corresponding operations, and finally completes the actual business. Therefore, account management is very important for the applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L9/08
CPCH04L9/085H04L9/3252H04L9/3255
Inventor 张英
Owner 北京网录科技有限公司
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