The Data Privacy Protection Method Based On Digital Watermarking Technology Under Cloud Environment

With the rapid development of network technology, the emerge and apply ofcloud computing in various domains has made the users to store various forms ofweb-based information dissemination, copying, and shared storage space andcomputing power become very convenient and fast. However, which the phenomenonabout the excessive dependence on the network for users and the network inherentvulnerability, also makes the network face unprecedented security issues, especially avariety of data resources and user privacy which storage in the cloud server, how todemonstrate its safety and reliability has become the primary problem that to besolved. Such as illegal copying of information, forgery or tampering, illegal use offalse information and e-commerce software code theft, tampering and other issues.The traditional solution is to adopt the data encryption technology or access controlpermission to achieve the protection for information, and make the access control forthe encrypted data after confirming the identity authorization, but this technique hassome limitations in the process of data privacy protection. particularly, it cannotprotect and track the decrypted data.Aiming at these problems which discussed in the above, the paper proposes amethod that is use the digital watermarking technology in a cloud environment tosolve cloud storage data privacy issues, and accordingly designs a security modelwhich can support data privacy protection. This model use digital watermarkingtechnology to make the identification for the digital information of users, prevent userprivacy data lack their protection, as well as cloud service providers or data users todisclose or distribute data products when the data is decrypted. Finally, the simulationresults demonstrate the safety and analog and digital watermarking technologyapplication in the user model image, the result shows that the model not only caneffectively implement the protection for user privacy data, but also improve the levelof protection of user data security and reliability. Data privacy and security from the cloud environment perspective in this articlestarting tightly around data security, confidentiality, integrity and other issues cloudstorage environment a study. The results show that the proposed method has a betterorganization and management for users’ data, and can be guaranteed their safety, andmeaning while lay a solid foundation for further research.