Research Article
An Efficient and Privacy Preserving CP-ABE Scheme for Internet-Based Collaboration
@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
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.
