Design and Implementation of Secure Cloud Storage System based on Hybrid Cryptographic Algorithm

Cloud storage systems are developing rapidly, but there are security risks, such as difficulty in ensuring the privacy and security of data information. Create a hybrid cryptographic system by combining public key encapsulation and key symmetry, using hybrid cryptographic algorithms. The cloud storage system integrates resources, access control, identity verification, regular backups, and other methods. The research results showed that the ciphertext recognition accuracy of the proposed scheme consistently remained above 90%; When storing data of the same size, ciphertext has the highest integrity; When the ciphertext size is 500GB, the CPU usage is 28%. The cloud storage system designed in this article, combined with hybrid cryptographic algorithms, effectively improves the security and efficiency of data storage, meeting the growing data storage and management needs of users.