User privacy protection method based on attribute and homomorphism mixed encryption under cloud environment

A hybrid encryption and user privacy technology, applied in the field of cloud computing security, can solve problems such as the inability to meet user security requirements, and achieve the effect of facilitating computing and ensuring security

Active Publication Date: 2014-10-01
NANJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
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Problems solved by technology

The traditional privacy encryption technology based on a single method can no longer meet the secu

Method used

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  • User privacy protection method based on attribute and homomorphism mixed encryption under cloud environment
  • User privacy protection method based on attribute and homomorphism mixed encryption under cloud environment
  • User privacy protection method based on attribute and homomorphism mixed encryption under cloud environment

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Embodiment Construction

[0027] Cloud computing offers many advantages over traditional models, such as information sharing in a virtual environment, dynamic scalability, virtualization of software, platforms, and storage, and so on. However, in addition to the many benefits that cloud computing has brought to people, many problems have arisen, such as: performance issues, fault tolerance, interoperability, data migration and conversion from legacy systems, etc. The main problem is security, such as virtualization Security, application security, identity management, privacy security, among which the most worrying and important thing is user privacy security. The above security issues prompted us to propose a reliable cloud user data protection scheme based on privacy level classification and hybrid encryption to ensure that the privacy of users on the cloud platform is not violated.

[0028] In cloud computing, data is destined to be stored in the cloud in the form of ciphertext, which is the most bas...

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Abstract

The invention provides a user privacy protection method based on attribute and homomorphism mixed encryption under a cloud environment. The method is mainly used for solving the safety problem of user privacy under the cloud environment. Firstly, a user sends the information of the user to a cloud service provider, and the cloud service provider clarifies the user privacy. Secondly, the user adopts different encryption modes for different types, namely a homomorphism encryption mode and an encryption mode based on the attribute. It is guaranteed that important privacy information is more difficult to be leaked out and stolen through the homomorphism encryption mode for the user, and the user can conduct operation on the privacy information of the user. Through the encryption mode based on the attribute, it is guaranteed that certain network resources can be shared with other users. Finally, the user downloads and decodes cryptograph. Through the mixed encryption mode, safety of the user data privacy is further guaranteed. Meanwhile, the user can operate important service data of the user conveniently. Moreover, coding efficiency and decoding efficiency are further improved.

Description

technical field [0001] The present invention provides a user privacy protection scheme based on attribute and homomorphic hybrid encryption in the cloud environment, which is mainly used to solve the security problem of user privacy in the cloud environment. The category of uses homomorphic encryption or attribute-based encryption encryption. At the same time, the user's encrypted data is managed and maintained in a unified manner in the cloud, which belongs to the field of cloud computing security. Background technique [0002] Cloud computing is another major Internet computing model proposed in the computer field after grid computing and distributed computing. Cloud computing can be divided into three service models: IaaS (Infrastructure-as-a-service, infrastructure as a service), consumption Users can obtain services from a complete computer infrastructure through the Internet; PaaS (Platform-as-a-Service, Platform as a Service), Paas actually refers to the platform for...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08
Inventor 季一木匡子卓王汝传孙延鹏蒋晨晨谈杰谈海宇袁永阁
Owner NANJING UNIV OF POSTS & TELECOMM
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