Improved Data Assured Deletion Model in Cloud Computing Environment
Zhonghu Xu · Computer & Network · 2014
Incloud computing environment, the user hasn't direct management authority for data if the data management performed by cloud service provider. Aiming at this problem, this paper improves the scheme of data assured deletion in cloud environment implemented by using Distributed Hash Tables(DHT) network characteristics, proposes the KDTPC model which allows the data owners to keep the encryption keys generated by key derivation tree and the extracted partial ciphertext at the same time, and eliminates the calculation process of minimum tree keys set when distributing the keys. This scheme can enhance the users' data control in cloud,strengthen the resistance capability of violence attacks, and reduce the time overhead under the premise of ensuring safety performance.