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Method of data encryption protection and system thereof

A data encryption and protection system technology, applied in the field of communication, can solve the problem of low efficiency of encrypted information sharing among multiple users, and achieve the effect of fine-grained access control, low computing overhead and communication overhead, and ensuring security.

Inactive Publication Date: 2013-06-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention provides a data encryption protection method and system to at least solve the problem of low efficiency of encrypted information sharing among multiple users in the cloud storage system in the related art

Method used

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  • Method of data encryption protection and system thereof
  • Method of data encryption protection and system thereof
  • Method of data encryption protection and system thereof

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] The embodiment of the present invention provides a data encryption protection method, figure 2 is a flowchart of a data encryption protection method according to an embodiment of the present invention, such as figure 2 As shown, the following steps S202 to S204 are included.

[0039] Step S202, encrypting the plaintext and the specified access structure to obtain ciphertext, wherein the access structure is used to indicate the user who has the authority to decrypt the ciphertext.

[0040] Step S204, decrypt the above ciphertext to obtain the plaintext and the access structure.

[0041] Through the above steps, CP-ABE is improved, and the access structure is encrypted together as par...

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PUM

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Abstract

The invention discloses a method of data encryption protection and a system of the data encryption protection. The method of the data encryption protection comprises the following steps: encrypting a plaintext and a specific access structure so as to obtain a ciphertext, wherein the access structure is used for showing users having the right to decipher the ciphertext; and deciphering the ciphertext to obtain the plaintext and the access structure. By means of the method of the data encryption protection and the system of the data encryption protection, an attribute encryption algorithm of ciphertext-policy attribute-based encryption (CP-ABE) based on a ciphertext strategy is modified, the access structure is encrypted as a part of a message, the problem that the efficiency of encryption information shared in a cloud storage system among multiple users is low can be solved, and not only the safety of the data can be guaranteed, and information shared among the multiple users under low computational overhead and communication overhead can be achieved, but also fine-grained access control of a storage file in the cloud storage system can be achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data encryption protection method and system. Background technique [0002] As a new generation of technological change, cloud computing has attracted the attention of all walks of life. With the development of cloud computing, cloud storage has appeared. [0003] Cloud storage is a new concept extended and developed from the concept of cloud computing. It refers to the storage of a large number of different types of data in the network through functions such as cluster applications, grid technology, or distributed file systems. A system in which devices work together through application software to jointly provide data storage and business access functions. When the core of cloud computing system computing and processing is the storage and management of large amounts of data, a large number of storage devices need to be configured in the cloud computing system, then the clo...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08H04L9/32H04L9/08
CPCH04L9/32G06F21/6218G06F2221/2107G06F2221/2115H04L9/3073H04L63/0485
Inventor 彭志明
Owner ZTE CORP