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Information processing method, information processing device, block chain platform and storage medium

An information processing method and blockchain technology, applied in the fields of blockchain platforms and storage media, information processing devices, and information processing methods, can solve problems such as no data protection, and achieve the effect of realizing privacy calculations

Pending Publication Date: 2022-04-08
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hash data in this method can only be used as a deposit certificate, and the original plaintext data is still required when performing a transaction, and there is no real data protection

Method used

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  • Information processing method, information processing device, block chain platform and storage medium
  • Information processing method, information processing device, block chain platform and storage medium
  • Information processing method, information processing device, block chain platform and storage medium

Examples

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. All other embodiments obtained under the premise of creative labor belong to the scope of protection of this application.

[0032] In the following description, references to "some embodiments" describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or a different subset of all possible embodiments, and Can be combined with each other without conflict.

[0033] In the following description, the term "first\second\third" is only used to distinguish similar objects, and does not represent a specific ordering of objects. Understandably, "first\second\third" Where permitted, the specific order or sequencing may be interchanged such that the embodiments of the application described herein can be practiced in sequences oth...

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PUM

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Abstract

The embodiment of the invention discloses an information processing method. The method comprises the following steps: receiving transaction information between a target user and other users; wherein the transaction information comprises an account change value; obtaining first account book information of the target user from the block chain; wherein the first account book information comprises a first ciphertext account value and a first public key of the target user, and the first ciphertext account value is obtained after the target user encrypts previous transaction information of the target user by using the first public key; encrypting the account change value by using the first public key to obtain a first ciphertext account change value; determining a second ciphertext account value based on the first ciphertext account value, the first ciphertext account change value and a first evaluation function, and recording the second ciphertext account value in the block chain, so that the target user decrypts the second ciphertext account value by using a first private key corresponding to the first public key to obtain a first plaintext account value; wherein the first public key and the first private key are generated according to homomorphic encryption parameters.

Description

technical field [0001] The present application relates to but not limited to the field of computer technology, and in particular relates to an information processing method, an information processing device, a block chain platform and a storage medium. Background technique [0002] Blockchain technology is generally divided into public chains and licensed chains, and licensed chains can be divided into alliance chains and private chains according to whether the data maintainer is a single individual. The data on the public chain is openly shared, while within the permissioned chain, although the data is shared, the information protected in it is often open to some participants and kept secret from others according to business needs. In the field of privacy protection, with the requirements of the General Data Protection Regulation (GDPR) put forward by the European Union in 2018, data owners are also required to provide data protection. The data protection issue in the alli...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/60H04L9/08H04L9/40H04L67/104
Inventor 马逸龙王云浩
Owner LENOVO (BEIJING) CO LTD