Block chain cross-chain key security access method and device and storage medium

Abstract

The invention discloses a block chain cross-chain key security access method. The method comprises the steps of: converting a first private key of a native main block chain into a second private key through a reversible encryption algorithm; backing up the first private key and the second private key to an information storage area; generating one or more third private keys by using a key generation element, and setting a third private key or a combination of a plurality of third private keys for accessing the key block chain; establishing a VPN channel to access the key block chain to obtain the second private key; converting the second private key into the first private key through the reversible encryption algorithm; and establishing a VPN channel of the native main block chain and accessing the native main block chain by using the first private key. Meanwhile, the invention further provides a block chain cross-chain key security access device and a storage medium. According to the technical scheme provided by the invention, the storage and use safety of block chain private keys is ensured, and a user can safely and conveniently connect, query and access the block chain.

Description

technical field [0001] The present invention relates to the technical field of secure access to blockchain cross-chain keys, in particular to a method, device and storage medium for secure access to blockchain cross-chain keys. Background technique [0002] In the existing general-purpose blockchain technology application, the user holding the private key of the blockchain uses the private key stored on the physical medium to perform operation access and signature authentication on the blockchain, such as U disk, U- key, computer hard disk, paper, etc., but in this case the private key may be permanently lost along with the loss of the physical medium. At the same time, the private key may also be stolen by criminals and use the stolen private key to access the blockchain, resulting in data loss or property damage. Another existing blockchain technology saves the private key to other places in the network. When accessing the blockchain, the access to the blockchain is compl...

AI Technical Summary

Problems solved by technology

[0002]In the existing general-purpose blockchain technology application, the user who holds the blockchain private key uses the private key stored on the physical medium to operate the blockchain Access, signature authentication, the physical media such as U disk, U-key, computer hard disk, paper, etc., but in this case the private key may be permanently lost along with the loss of the physical media

At the same time, the private key may also be stolen by illegal personnel and use the stolen private key to access the blockchain, resulting in data loss or property damage

Another existing blockchain technology saves the private key to other places in the network. When accessing the blockchain, the access to the blockchain is completed by reading the key through the network, but this method is through Network, especially the Internet, because the transmission of data and information in the network is insecure, so important information such as the blockchain private key is still easy to be stolen or tampered when transmitted on the network

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