@inproceedings{a4efb4e08b734937bee9ae9dec3b97f6,
title = "Server-aided directly revocable ciphertext-policy attribute-based encryption with verifiable delegation",
abstract = "Ciphertext-policy attribute-based encryption (CP-ABE) is a promising primitive for enforcing access control policies defined by data owner on outsourced data. We propose a novel primitive called server-aided directly revocable CP-ABE with verifiable delegation, denoted by sarCP-ABE. In sarCP-ABE, the workloads about revocation are delegated to an aide-server, and the data owner only needs to generate a normal ciphertext as in a pure CP-ABE system. A user can be directly revoked by updating a public revocation list. To prevent a revoked user from decrypting, the aide server can update the aide-ciphertext with current revocation list, and an auditor can publicly check the correctness of the updated aide-ciphertext. At last, the proposed scheme can be proved selectively secure against chosen-plaintext attack on both original and updated ciphertext.",
keywords = "ABE, LSSS, User revocation, Verifiable revocation delegation",
author = "Gang Yu and Xiaoxiao Ma and Zhenfu Cao and Weihua Zhu and Guang Zeng",
note = "Publisher Copyright: {\textcopyright} Springer International Publishing AG, part of Springer Nature 2018.; 19th International Conference on Information and Communications Security, ICICS 2017 ; Conference date: 06-12-2017 Through 08-12-2017",
year = "2018",
doi = "10.1007/978-3-319-89500-0\_15",
language = "英语",
isbn = "9783319894997",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "172--179",
editor = "Sihan Qing and Dongmei Liu and Chris Mitchell and Liqun Chen",
booktitle = "Information and Communications Security - 19th International Conference, ICICS 2017, Proceedings",
address = "德国",
}