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Block chain-based data encryption and decryption method, device and related equipment

A data encryption and blockchain technology, applied in the blockchain field, can solve problems such as illegal ciphertext violations, inability to supervise by regulatory authorities, information security risks, etc., to achieve the effect of protecting privacy

Active Publication Date: 2021-05-11
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. If the decryption password is intercepted during transmission, there is a security risk in the information;
[0007] 3. If the ciphertext sent between users contains illegal and illegal content, the supervisory department cannot supervise it

Method used

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  • Block chain-based data encryption and decryption method, device and related equipment
  • Block chain-based data encryption and decryption method, device and related equipment
  • Block chain-based data encryption and decryption method, device and related equipment

Examples

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Embodiment Construction

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0059] The features, structures, or characteristics described in this disclosure may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one...

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PUM

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Abstract

The disclosure provides a blockchain-based data encryption and decryption method, device, electronic device, and computer-readable storage medium, including: the data sender obtains the data receiver's encrypted public key and general supervisory key from the smart contract of the target blockchain The party encrypts the public key; generates a random encryption password, and uses the random encryption password to randomly encrypt the target plaintext data to obtain the random encrypted ciphertext of the target plaintext data; uses the sender's encryption private key and the data receiver's encryption public key to randomly encrypt The password is randomly encrypted to generate the encrypted ciphertext of the data receiver; the random encrypted password is randomly encrypted using the encrypted private key of the sender and the encrypted public key of the general supervisor to generate the encrypted ciphertext of the general supervisor; The random encrypted ciphertext of the plaintext data, the encrypted ciphertext of the data receiver, and the encrypted ciphertext of the general supervisor are uploaded to the smart contract.

Description

technical field [0001] The present disclosure relates to the field of block chain technology, and in particular to a block chain-based data encryption and decryption method and device, electronic equipment, and a computer-readable storage medium. Background technique [0002] Blockchain technology, also known as distributed ledger technology, is a distributed Internet database technology. The network built based on blockchain technology can be called a blockchain network, which includes network nodes (also called blockchain nodes, hereinafter referred to as nodes), and the node devices corresponding to each node Both store a full amount of blockchain. The blockchain network (or blockchain technology) in related technologies has the characteristics of decentralization, openness and transparency, non-tamperable, and trustworthy. Based on these characteristics, the application fields of blockchain technology are becoming more and more extensive. [0003] With the development...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/32H04L9/08
CPCH04L63/0428H04L9/3247H04L9/0869H04L9/50
Inventor 徐文超申子熹
Owner TENCENT TECH (SHENZHEN) CO LTD