Collaborative Computing: Networking, Applications and Worksharing. 13th International Conference, CollaborateCom 2017, Edinburgh, UK, December 11–13, 2017, Proceedings

Research Article

An Efficient and Privacy Preserving CP-ABE Scheme for Internet-Based Collaboration

Download
41 downloads
  • @INPROCEEDINGS{10.1007/978-3-030-00916-8_46,
        author={Jinmiao Wang and Bo Lang},
        title={An Efficient and Privacy Preserving CP-ABE Scheme for Internet-Based Collaboration},
        proceedings={Collaborative Computing: Networking, Applications and Worksharing. 13th International Conference, CollaborateCom 2017, Edinburgh, UK, December 11--13, 2017, Proceedings},
        proceedings_a={COLLABORATECOM},
        year={2018},
        month={10},
        keywords={Data protection Attribute-based encryption Hidden policy Fast decryption Fully secure},
        doi={10.1007/978-3-030-00916-8_46}
    }
    
  • Jinmiao Wang
    Bo Lang
    Year: 2018
    An Efficient and Privacy Preserving CP-ABE Scheme for Internet-Based Collaboration
    COLLABORATECOM
    Springer
    DOI: 10.1007/978-3-030-00916-8_46
Jinmiao Wang1,*, Bo Lang1,*
  • 1: Beihang University
*Contact email: wangjinmiao@buaa.edu.cn, langbo@buaa.edu.cn

Abstract

The development of Internet applications facilitates enterprises and individuals to share information and work together across physical barriers. In such environment, flexible and efficient data-protection methods are required because data are out of the control domain of its owners. By encrypting with an access policy, ciphertext-policy attribute-based encryption (CP-ABE) can simultaneously achieve data encryption and access control, making it an ideal mechanism for data protection in Internet-based environments. However, the existing CP-ABE schemes usually have limitations regarding efficiency and privacy leakage from the access policy. In this paper, we propose a CP-ABE scheme with hidden access policy and fast decryption that improves the decryption efficiency and preserves the privacy of the access policy. In addition, by adopting dual-system encryption methodology, our scheme achieves full security, which is a higher security level in CP-ABE. The performance analysis revealed that the comprehensive capability of our scheme outperforms the existing CP-ABE schemes.