Cloud Storage Data Encryption Based On TPM

With the development of global information, the digital storage of information hasreplaced the paper and becomes the main way of information storage. However, the securityissues of storage are also increasingly prominent and global information storage securityproblems occur frequently, so the security of digital storage has become the hot issue in thefield of information security. Proved by practice, the most effective means to ensure the safetyof information storage are identity authentication and encryption technology. They can realizethe access control and secure storage of information.In the storage of the information, the most effective encryption method is symmetricencryption algorithm and asymmetrical encryption algorithm. It helps us realize security andfast encryption of information，but the traditional encryption technology itself has manydefects, the most obvious problem is storage and management of the key. It is preciselybecause of the problem that leads to the production of trusted computing technology andpromotes its rapidly development. Emergence of trusted computing technology provides avery reliable security protection mechanism for information storage security. In order toprovide more security to the information stored in the cloud server, I introduce computingtechnology into cloud storage platform, using the trusted platform module TPM (TrustedPlatform Module) key storage and key management technology and propose cloud storagedata encryption mechanism based on TPM.This paper firstly explains the background and significance of this research, points outproblems to be solved，studies the concept of trusted computing，trusted computing platformmodule concept and structure of TPM, the data encryption technology and the technology ofcloud storage. Then cloud storage data encryption mechanism based on TPM was designedand realized. In this part, encryption structure model and design principle are described indetail. Finally analyses the security properties of cloud storage data encryption mechanismbased on TPM.