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Data processing method, data processing device and computer system

A data processing and database technology, which is applied in the fields of electronic digital data processing, computer security devices, computing, etc., and can solve the problems of inability to realize the privacy protection of transaction data.

Pending Publication Date: 2019-09-03
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing technology, no matter what kind of blockchain technology is used, the transaction data is visible to each node in the blockchain network during the process of endorsement and on-chain, which makes it impossible to realize the privacy protection of transaction data

Method used

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  • Data processing method, data processing device and computer system
  • Data processing method, data processing device and computer system
  • Data processing method, data processing device and computer system

Examples

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Embodiment Construction

[0030] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present disclosure.

[0031] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features, ...

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PUM

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Abstract

The invention provides a data processing method applied to a client, and the method comprises the steps: determining a first privacy node set and a second privacy node set, the first privacy node setcomprising one or more nodes in a block chain network composed of a plurality of nodes, and the second privacy node set being a subset of the first privacy node set; obtaining a secret key, wherein each node in the first privacy node set also obtains the secret key; encrypting the transaction data based on the key to obtain encrypted data; sending the encrypted data to each node in a second private node set, and carrying out endorsement verification on the encrypted data by the nodes based on the secret key; if endorsement verification succeeds, sending the encrypted data to the block chain network, enabling each node in the block chain network to store the encrypted data into the block chain, wherein each node in the first privacy node set can decrypt the encrypted data based on the secret key. The invention further provides a data processing device and a computer system.

Description

technical field [0001] The present disclosure relates to a data processing method, a data processing device and a computer system. Background technique [0002] The goal of blockchain technology is to achieve distributed and reliable storage of data. When the blockchain is actually implemented, the data is stored incrementally on multiple nodes in the network, and the secure hash function (Secure Hash Algorithm, SHA) ensures that the data entering the chain cannot be tampered with, and is realized through consensus algorithms and network transmission protocols. It ensures the consistency of data storage on each node. [0003] The blockchain can generally be divided into a public chain (Public Chain) and a permissioned chain (Permissioned Chain), and the permissioned chain can be divided into a consortium chain (Consortium) and a private chain (Private chain) according to whether the data maintainer is a single entity (Entity) . [0004] However, in the existing technology...

Claims

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Application Information

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IPC IPC(8): G06F21/62
CPCG06F21/6272
Inventor 马逸龙过晓冰王云浩
Owner LENOVO (BEIJING) CO LTD
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