A New Outsourced Data Deletion Scheme with Public Verifiability

Abstract

In the cloud storage, the data owner will lose the direct control over his outsourced data, and all the operations over the outsourced data may be executed by corresponding remote cloud server, such as cloud data deletion operation. However, the selfish cloud server might maliciously reserve the data copy for financial interests, and deliberately send a false deletion result to cheat the data owner. In this paper, we design an IBF-based publicly verifiable cloud data deletion scheme. The proposed scheme enables the cloud server to delete the data and return a proof. Then the data owner can check the deletion result by verifying the returned deletion proof. Besides, the proposed scheme can realize public verifiability by applying the primitive of invertible bloom filter. Finally, we can prove that our proposed protocol not only can reach the expected security properties but also can achieve the practicality and high-efficiency.