Cloud storage services allow users to outsource their data remotely to save their local storage space and enable them to manage\nresources on demand. However, once users outsourced their data to the remote cloud platform, they lose the physical control of\nthe data. How to ensure the integrity of outsourced data is the major concern of cloud users and also is the main challenge in the\ncloud service deployment. Limited by the communication and computation overheads, traditional hash-based integrity verification\nsolutions in the stand-alone systems cannot be directly adopted in remote cloud storing environment. In this paper, we improve\nthe previous privacy preservingmodel and propose an effective integrity verification scheme of cloud data based on BLS signature\n(EoCo), which ensures public audition and data privacy preserving. In addition, EoCo also supports batch auditing operations.\nWe conducted theoretical analysis of our scheme, demonstrated its correctness and security properties, and evaluated the system\nperformance as well.
Loading....