Block chain private key generation method and device

Abstract

The embodiment of the invention discloses a blockchain private key generation method and device. The method comprises the following steps: obtaining fingerprint information of a first user; generatingfingerprint feature data according to the fingerprint information; converting the fingerprint feature data into a hash value by adopting a hash algorithm, and taking the hash value as a private key of the first user; generating a public key of the first user according to the private key of the first user, and publishing the public key of the first user on a blockchain network, wherein the block chain network comprises block chain nodes; and signing to-be-uploaded service data by adopting the private key to obtain signature information, and sending the to-be-uploaded service data and the signature information to the blockchain node, so as to enable the blockchain node to verify the signature information by adopting the public key of the first user. By adopting the method and the device, the risk of information leakage can be reduced, and the data security is improved.

Description

technical field [0001] The present application relates to the field of electronic technology, and in particular to a method and device for generating a blockchain private key. Background technique [0002] With the advancement of the "Internet +" action, not only has the pace of development of e-commerce applications been accelerated, but also e-commerce activities such as online shopping and online consumption have become mainstream lifestyles, making it a reality for people to know the world without leaving their homes. While people are enjoying the convenience of "Internet +", the safety of it has become the focus of attention. In particular, hackers on the network pretend to be legitimate users to receive or send data, information senders deny that they have sent data, and information receivers forge and tamper with data. [0003] Blockchain technology is an effective way to solve the above problems. Through blockchain technology, the security of data received or sent b...

AI Technical Summary

Problems solved by technology

[0003] Blockchain technology is an effective way to solve the above problems. Through blockchain technology, the security of data received or sent between users can be guaranteed, and data forged and tampered can be prevented. However, at present, the private keys of users in the blockchain system are all It is a randomly generated string. At the same time, the private key needs to be saved by means of mnemonic phrases, etc. There is still a risk of information leakage, and the security and privacy of user data cannot be guaranteed.

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