- 期刊
Fully Anonymous Identity-Based Broadcast Encryption without Random Oracles
並列摘要
In a broadcast encryption (BE) scheme, a broadcaster can encrypt a message for a set S of users who are listening to a broadcast channel. Most identity-based broadcast encryption (IBBE) schemes are not anonymous, which means the attacker can obtain the identities of all receivers from the ciphertext. Currently, anonymous IBBE schemes are only provably secure in the random oracle model. In this paper, we propose a fully anonymous IBBE scheme based on asymmetric bilinear groups, which is adaptive-ID secure without random oracles. Any attacker cannot get the identities of the receivers from the ciphertext, and each receiver is anonymous for any other receiver, and only the broadcaster knows the identities of all receivers. The scheme can simultaneously realize semantic security and recipient anonymity.
延伸閱讀
- Liu, L., Guo, Z., Cao, Z., & Chen, Z. (2018). An Improvement of One Anonymous Identity-based Encryption Scheme. International Journal of Electronics and Information Engineering, 9(1), 11-21. https://doi.org/10.6636/IJEIE.201809_9(1).02
- Ming, Y., & Yuan, H. (2019). Fully Secure Anonymous Identity Based Broadcast Encryption with Group of Prime Order. International Journal of Network Security, 21(1), 7-16. https://doi.org/10.6633/IJNS.201901_21(1).02
- Shan, S. (2019). An Efficient Certificateless Signcryption Scheme without Random Oracles. International Journal of Electronics and Information Engineering, 11(1), 9-15. https://doi.org/10.6636/IJEIE.201909_11(1).02
- Liu, L., Li, Y., Cao, Z., & Chen, Z. (2017). One Private Broadcast Encryption Scheme Revisited. International Journal of Electronics and Information Engineering, 7(2), 88-95. https://doi.org/10.6636/IJEIE.201712.7(2).05
- Malek, B., & Miri, A. (2012). Adaptively Secure Broadcast Encryption with Short Ciphertexts. International Journal of Network Security, 14(2), 71-79. https://doi.org/10.6633/IJNS.201203.14(2).02