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Encrypted search method based on block chain, electronic equipment and computer storage medium

A blockchain and block technology, applied in computer security devices, computing, database indexing, etc., can solve the problems of difficult retrieval, reduce data availability and multiple data types in the blockchain, and achieve safe and efficient storage and retrieval. , the effect of improving retrieval efficiency and increasing storage costs

Inactive Publication Date: 2021-04-30
宁波云麟信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, there are many types and quantities of data in the mobile terminal, and it is difficult to retrieve the data stored in the blockchain
The efficiency of searching block by block is very low, which cannot meet the real-time application requirements of mobile terminals
[0005] Second, although the method of directly encrypting and storing data can ensure data security, the encrypted data is not easy to retrieve and query, and simple encryption technology will greatly reduce the availability of data stored in the blockchain

Method used

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  • Encrypted search method based on block chain, electronic equipment and computer storage medium
  • Encrypted search method based on block chain, electronic equipment and computer storage medium
  • Encrypted search method based on block chain, electronic equipment and computer storage medium

Examples

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Embodiment Construction

[0017] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these examples are provided so that the understanding of this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0018] It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings. In the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0019] It should be noted that conc...

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Abstract

The embodiment of the invention discloses an encrypted search method based on a block chain, electronic equipment and a computer storage medium. A specific embodiment of the method comprises the steps of receiving a target keyword set sent by a user; generating a query vector based on the target keyword set; performing encryption processing on the query vector to obtain an encrypted query vector; sending the query vector to a first terminal, the first terminal determining target data based on the query vector; receiving target data returned by the first terminal; updating blockchain. According to the method, a query vector is generated by utilizing a target keyword set and a pre-generated keyword information dictionary, and the query vector is encrypted to obtain an encrypted query vector. And searching the target data in the first terminal storing the target data according to the encrypted query vector. Personalized search is achieved through keywords, and the search precision is improved. And the query vector is encrypted and then queried, so that the search safety can be improved.

Description

technical field [0001] Embodiments of the present disclosure relate to the fields of blockchain and storage, and in particular to a blockchain-based data encryption storage and query method, electronic equipment, and computer storage media. Background technique [0002] Currently, various types of mobile terminals appear in daily life, including various smart phones and tablet computers. Limited by the storage and computing capabilities of mobile terminals, mobile users are more accustomed to outsourcing and storing personal data on dedicated storage servers. These personal data may include a large amount of personal privacy information, such as personal photos, address book information, bank account information, office document information, etc. If there are no reasonable protection measures, these outsourced storage of sensitive information will pose a great challenge to the privacy of users. With the development of blockchain technology, there are more and more related ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/23G06F16/22G06F21/60G06Q40/04
CPCG06F16/2471G06F16/23G06F16/2255G06F21/602G06Q40/04
Inventor 刘贤义
Owner 宁波云麟信息科技有限公司
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