Hierarchical identity-based broadcast encryption scheme from LWE

• Published in: Journal of communications and networks Vol. 16; no. 3; pp. 258 - 263
• Main Authors: Yang, Chunli, Zheng, Shihui, Wang, Licheng, Lu, Xiuhua, Yang, Yixian
• Format: Journal Article
• Language: English
• Published: Seoul Editorial Department of Journal of Communications and Networks 01-06-2014; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); 한국통신학회
• Subjects: Broadcast encryption; Broadcasting; Encryption; H-IBBE; lattices; LWE; Network security; Receivers; 전자/정보통신공학
• ISSN: 1229-2370; 1976-5541
• DOI: 10.1109/JCN.2014.000045

A hierarchical identity-based broadcast encryption (H-IBBE) scheme is an identity-based broadcast encryption (IBBE) scheme in a hierarchical environment. In order to obtain secure H-IBBE schemes in the quantum era, we propose an H-IBBE scheme based on the learning with errors problem assumption. Our scheme achieves indistinguishability from random under adaptive chosen-plaintext and chosen-identity attacks in the random oracle model.