The Design And Implementation Of Privacy Protection Module In Publishing Service Of Public Cloud

Cloud Computing is the integrated production of grid computing, distributed computing, parallel computing and other traditional computer and network technologies. As an emerging computing model, cloud computing has received widespread concern in the industry for its advantages, such as high level of scalability, flexible payment and convenient management. Cloud computing technology is developing rapidly. However, the evolution of Cloud computing technology is based on Internet, which is used as the supporting communication platform. The characteristics of Internet, such as the openness, efficiency and interaction, promote the development of Cloud computing, but also bring in potential privacy security risks. It is a very important issue to ensure the privacy of information that users seriously concern in the process of using Cloud computing services. The sensitive information should be kept from suffering malicious stealing, spying or even tampering.Data publishing service has broad prospects in the cloud computing environment. With the expansion of the user numbers and the growth of operational costs, many of the company data services, such as online news information and stock/securities transaction information publish-subscribe services have a potential trend to migrate to the cloud. The reason why these services are now still in the preliminary stages of researching and commercial testing is that privacy and security problems have set great obstacles for the large-scale promotion of the service. In the cloud data publishing service, users are most concerned with their own privacy information security issues. This paper implements an effective protection mechanism that is able to protect the privacy information of the publishers and the subscribers.In the paper, the cloud computing architecture and potential privacy security issues of each level have been studied. The cloud privacy protection technologies have been researched. Focusing on the application scenarios for the cloud data-publishing service, the paper designs and implements the privacy information protection module using the Paillier homomorphic encryption and zero-knowledge authentication protocol. Finally, the experiments show the effectiveness of the implemented module.