| Title | Unbounded Key-Policy Attribute-Based Encryption with Black-Box Traceability |
| Publication Type | Conference Paper |
| Year of Publication | 2020 |
| Authors | Ye, Yunxiu, Cao, Zhenfu, Shen, Jiachen |
| Conference Name | 2020 IEEE 19th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom) |
| Date Published | Dec. 2021 |
| Publisher | IEEE |
| ISBN Number | 978-1-6654-0392-4 |
| Keywords | attribute-based encryption, Conferences, Encryption, Human Behavior, key-policy, performance evaluation, policy-based governance, privacy, pubcrawl, Scalability, Traceability, Unbounded |
| Abstract | Attribute-based encryption received widespread attention as soon as it was proposed. However, due to its specific characteristics, some restrictions on attribute set are not flexible enough in actual operation. In addition, since access authorities are determined according to users' attributes, users sharing the same attributes are difficult to be distinguished. Once a malicious user makes illicit gains by their decryption authorities, it is difficult to track down specific user. This paper follows practical demands to propose a more flexible key-policy attribute-based encryption scheme with black-box traceability. The scheme has a constant size of public parameters which can be utilized to construct attribute-related parameters flexibly, and the method of traitor tracing in broadcast encryption is introduced to achieve effective malicious user tracing. In addition, the security and feasibility can be proved by the security proofs and performance evaluation in this paper. |
| URL | https://ieeexplore.ieee.org/document/9343177/ |
| DOI | 10.1109/TrustCom50675.2020.00228 |
| Citation Key | ye_unbounded_2020 |
Unbounded Key-Policy Attribute-Based Encryption with Black-Box Traceability