Data Storage Security Technology And Application Based On Cloud Platform

With the rapid development of cloud computing technology,software technology and architecture have undergone significant changes in the cloud environment.Users begin to migrate systems and data to the cloud environment to meet the demand for resource acquisition on demand,load balancing,disaster tolerance and so on.However,the cloud environment is also facing attacks such as APIs and external interfaces and vulnerabilities.Therefore,data security access and storage problems in the cloud environment are becoming more and more serious.Ensuring the security of stored data deployed on the cloud environment is an urgent problem to be solved.In this paper,the related technologies of ensuring deployment system and data storage security in the existing cloud environment are deeply studied.On the basis of this,combined with the specific project requirements,a set of cloud-based computing is used,and access control and storage encryption are used to ensure data storage.A secure system.The system has been used online within the enterprise.The system is divided into four layers according to the function.The view layer acts as a customer interaction page and is the entry point for accessing and modifying data.The control layer is the entrance to the background of the whole system.The system designed the interface to call the check module to implement secure access control for the system interface and data.This function is implemented using JAVA technology and uses Redis as a cache to improve efficiency.This feature provides the system with the ability to verify access rights,ensuring that data is not compromised or modified.The system interface layer provides organizational encapsulation and simple business logic implementation of cloud platform layer services.The cloud computing layer provides business logic processing and data storage for the entire project.The storage method is MYSQL and Hadoop distributed file system,and the data will be encrypted before final storage.In order to improve the encryption efficiency,this paper proposes a parallel AES and RSA hybrid encryption algorithm improved by MapReduce in the cloud computing environment.The RSA management key is used to encrypt the plaintext data.The plaintext data to be encrypted will be grouped,and then the AES ciphertext calculation is performed concurrently on the plaintext data of all groups,and finally the encrypted ciphertexts of each group are merged to obtain the final encrypted ciphertext result.This paper completed the development and testing of the designed system.According to the test results,the cloud-based radiotherapy data storage security system meets the requirements of use and has strong practical application value.The system has been used in the actual enterprise environment and recognized by relevant medical workers.