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Boolean retrieval attribute-based encryption method capable of verifying search result

An attribute-based encryption and search result technology, applied in the field of data security, can solve problems such as Boolean retrieval attribute-based encryption

Active Publication Date: 2020-08-14
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of Boolean retrieval attribute-based encryption, and propose a Boolean retrieval attribute-based encryption method that can verify search results

Method used

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  • Boolean retrieval attribute-based encryption method capable of verifying search result
  • Boolean retrieval attribute-based encryption method capable of verifying search result
  • Boolean retrieval attribute-based encryption method capable of verifying search result

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Embodiment Construction

[0124] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0125] Such as figure 1 As shown, the present invention provides a Boolean retrieval attribute-based encryption method that can verify search results, comprising the following steps:

[0126] S1: Initialize the key generation center, the trusted third party and the cloud server respectively, and complete the system initialization;

[0127] S2: Use the initialized key generation center to generate a user attribute private key;

[0128] S3: After issuing the attribute private key to the user, use the initialized trusted third party to generate relevant data for the ciphertext;

[0129] S4: Based on the ciphertext after generating the relevant data, use the initialized trusted third party to generate a search request;

[0130] S5: Use the initialized cloud server to perform a search operation through a search request, and return the ciphertext that match...

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PUM

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Abstract

The invention discloses a Boolean retrieval attribute-based encryption method capable of verifying a search result, which adopts an attribute-based algorithm of a ciphertext strategy and a linear secret sharing LSSS structure, regards keywords as participants therein, formulates a search strategy by a user, and recovers an LSSS secret value through calculation in a matching process to realize Boolean retrieval. The method has high calculation efficiency, flexible search statements and efficiency are considered, efficient search result verification is achieved while Boolean retrieval is achieved, algorithm expression is flexible, and safety is high.

Description

technical field [0001] The invention belongs to the technical field of data security, and in particular relates to a Boolean retrieval attribute-based encryption method that can verify search results. Background technique [0002] As a new information storage technology, cloud storage, because of its large storage capacity and low price, more and more users store data in the cloud. While enjoying the convenient services brought by cloud storage, users also bear the risk of data security. Although traditional encryption technology can guarantee the confidentiality of data, it reduces the availability of data. Searchable encryption technology supports retrieval of encrypted data while ensuring data security, which greatly improves data availability. The early searchable encryption schemes only supported single-keyword or multiple-keyword equivalent searches, and the expression form of the search statement was single, resulting in poor user experience. Based on the above sit...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06H04L29/08G06F16/245
CPCH04L9/083H04L9/0825H04L9/0869H04L63/123H04L67/1097G06F16/245
Inventor 张文芳许燕王小敏
Owner SOUTHWEST JIAOTONG UNIV