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Encrypted data sharing method and device, equipment and readable medium

A technology for encrypting data and data, applied in digital data authentication, digital data protection, electronic digital data processing and other directions, can solve the problem of not having the support of proxy re-encryption function, etc., to enrich the scope of use, improve security protection capabilities, prevent Effects of illegal tampering

Active Publication Date: 2021-09-07
SHANDONG YINGXIN COMP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current key management system only supports key generation, storage, update, destruction, simple encryption and decryption operations, etc., and does not support proxy re-encryption

Method used

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  • Encrypted data sharing method and device, equipment and readable medium
  • Encrypted data sharing method and device, equipment and readable medium
  • Encrypted data sharing method and device, equipment and readable medium

Examples

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

[0036] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method for sharing encrypted data. figure 1 What is shown is a schematic diagram of an embodiment of the method for sharing e...

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PUM

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Abstract

The invention discloses an encrypted data sharing method and device, equipment and a readable medium, and the method comprises the steps: receiving a sharing data request sent by a data owner, and generating a data owner public key and a data owner private key according to the identity label of the data owner in the request; generating a data user public key according to the identity label of the data user in the request, and generating a proxy re-encryption key based on the data user public key and the data owner private key; encrypting the shared data based on the public key of the data owner, and uploading the encrypted data to a data processing center; in response to a received shared data acquisition request of a data user, acquiring a corresponding proxy re-encryption key and corresponding encrypted data based on the shared data acquisition request, and re-encrypting the encrypted data based on the proxy re-encryption key to obtain re-encrypted data; and acquiring a data user private key of the data user, and decrypting the re-encrypted data based on the data user private key to obtain shared data.

Description

technical field [0001] The invention relates to the technical field of data sharing, in particular to a method, device, device and readable medium for encrypting data sharing. Background technique [0002] With the development of cloud computing, users no longer directly control the hardware resources of the cloud platform, but directly use the services in the cloud computing environment, that is, the user's data and programs run in the cloud computing environment. Users lose direct control over the cloud computing platform, resulting in the management of data in the cloud platform belonging to the service provider. Therefore, in the cloud computing environment, the security of user data and programs is more and more important. [0003] Since the data storage and data processing services provided by the cloud service provider cannot be completely trusted, the cloud service provider may steal the user's private data without the user's permission. In order to ensure the secu...

Claims

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Application Information

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IPC IPC(8): G06F21/45G06F21/60G06F21/64
CPCG06F21/45G06F21/602G06F21/604G06F21/64G06F2221/2141H04L9/0825H04L9/0894H04L9/3213H04L9/0836H04L9/0891H04L9/085H04L9/0866H04L9/30
Inventor 麻付强
Owner SHANDONG YINGXIN COMP TECH CO LTD