Publication Type
Conference Proceeding Article
Version
publishedVersion
Publication Date
7-2016
Abstract
In a broadcast encryption system, a broadcaster can encrypt a message to a group of authorized receivers S and each authorized receiver can use his/her own private key to correctly decrypt the broadcast ciphertext, while the users outside S cannot. Identity-based broadcast encryption (IBBE) system is a variant of broadcast encryption system where any string representing the user’s identity (e.g., email address) can be used as his/her public key. IBBE has found many applications in real life, such as pay-TV systems, distribution of copyrighted materials, satellite radio communications. When employing an IBBE system, it is very important to protect the message’s confidentiality and the users’ anonymity. However, existing IBBE systems cannot satisfy confidentiality and anonymity simultaneously. In this paper, using an anonymous identity-based encryption (IBE) primitive with robust property as a building block, we propose a generic IBBE construction, which can simultaneously ensure the confidentiality and anonymity under chosen-ciphertext attacks. Our generic IBBE construction has a desirable property that the public parameters size, the private key size and the decryption cost are constant and independent of the number of receivers.
Keywords
Identity-based broadcast encryption, Anonymity, Robustness, Chosen-ciphertext security, Random oracle model
Discipline
Information Security
Research Areas
Cybersecurity
Publication
Information Security and Privacy: 21st Australasian Conference, ACISP 2016, Melbourne, July 4-6, 2016, Proceedings
Volume
9723
First Page
207
Last Page
222
ISBN
9783319403670
Identifier
10.1007/978-3-319-40367-0_13
Publisher
Springer
City or Country
Cham
Citation
HE, Kai; WENG, Jian; AU, Man Ho; MAO, Yijun; and DENG, Robert H..
Generic anonymous identity-based broadcast encryption with chosen-ciphertext security. (2016). Information Security and Privacy: 21st Australasian Conference, ACISP 2016, Melbourne, July 4-6, 2016, Proceedings. 9723, 207-222.
Available at: https://ink.library.smu.edu.sg/sis_research/3349
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1007/978-3-319-40367-0_13