Research Of User Data Transmission And Storage Security In Cloud Computing Solution

Cloud computing is a new computing model, in which large-scale Internet computing resources are effectively integrated and computing resources are provided as a service to users. In this model, Users can access to virtual computers and storage systems any time they want through the broadband network without considering the complex under-lying implementation and management. This model greatly reduces the difficulty of achievement and the hardware investment. Cloud computing effectively separates the virtual services from the actual resources. It also reduces the cost of various services and enhances the utilization of net-work resources.With the promotion of cloud computing applications and research, the security of cloud computing become one of the core issues. There are a great deal of interaction between the cloud computing platform and us-ers which bring a security threat of user data transmission and storage.This paper has a deep research in threat of cloud computing safety, proposes a safety system solution for user security issues of data trans-mission and storage in cloud computing system, builds a cloud computing experiment system, deals with the design and implementation of cloud computing security module. And the final results of this paper was ap-plied in the project in the lab, the project was based on the Android mo-bile and cloud computing safety technology, the research is carried out as follow:1) Deep research and analysis of existing cloud computing system structure, summarized the model of most cloud computing systems and the model, and the model was taken as the foundation of the cloud computing system used in this paper,2) Discuss the threats of cloud computing system, described the process of cloud computing, figured out the security threats in the cloud computing operation which is a possible security problem in data trans-mission and storage process.3) Proposed a solution for the safety issues in the cloud computing systems. The solution encrypts the data with symmetric keys which are provided by the users. The solution uses asymmetric encryption key when transfers the user key and combined with third-party software to ensure better data security during transmission and storage.4)This paper designed and implemented a cloud computing security system which carries out a system solution about transmission system password security, optimization on the speed of encryption and decryp-tion of sensitive data, speed limits caused by the bad network condition, and safety issues when sensitive data stored in the database. This paper shows the safety system is useful and effective on the area of protecting the sensitive user data transmission and storage in cloud computing sys-tem by the design, implementation and verification of the security system model in the cloud computing system.The security system proposed in this paper can greatly enhance the security of user information. The transmission of symmetric key is en-crypted by asymmetric key. The encryption method is to ensure the secu-rity encryption while decryption performance optimization is also consi-dered. The paper also proposed a solution of asynchronous response to reduce the limit of bad network condition.