doi: 10.4304/jsw.6.10.1929-1936
New Identity-based Broadcast Encryption with Constant Ciphertexts in the Standard Model
Abstract—How to build an efficient identity-based broadcast system with short ciphertexts is a main challenge at present. The existing constructions with constant size ciphertexts in the standard model are based on the non-standard cryptography assumption. In addition, these constructions cannot solve the trade-off between the private keys and ciphertexts. Hence these methods lead to schemes that are somewhat inefficient in the real world. To overcome these shortcomings, two schemes are introduced at first. The initial construction has constant size ciphertexts and O(|S|)- size private keys(where S denotes the set of receivers). Then the second scheme achieves constant size ciphertexts and constant size private keys which solve the trade-off between the private keys and ciphertexts. Furthermore, their security rests on the hardness of the decision Diffie-Hellman Exponent problem instead of other strong assumptions. However, both schemes only achieve a weak securityselective- identity security. Finally, two helpful constructions are proposed. They are constructed in the standard model and achieve full security which is stronger than selectiveidentity security.
Index Terms—Broadcast encryption, standard model, short ciphertexts, identity-based encryption, provable security
Cite: Qing Wu, Wenqing Wang, "New Identity-based Broadcast Encryption with Constant Ciphertexts in the Standard Model," Journal of Software vol. 6, no. 10, pp. 1929-1936, 2011.
General Information
ISSN: 1796-217X (Online)
Abbreviated Title: J. Softw.
Frequency: Quarterly
APC: 500USD
DOI: 10.17706/JSW
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Cecilia Xie
Abstracting/ Indexing: DBLP, EBSCO,
CNKI, Google Scholar, ProQuest,
INSPEC(IET), ULRICH's Periodicals
Directory, WorldCat, etcE-mail: jsweditorialoffice@gmail.com
-
Jun 12, 2024 News!
Vol 19, No 2 has been published with online version [Click]
-
Jan 04, 2024 News!
JSW will adopt Article-by-Article Work Flow
-
Apr 01, 2024 News!
Vol 14, No 4- Vol 14, No 12 has been indexed by IET-(Inspec) [Click]
-
Apr 01, 2024 News!
Papers published in JSW Vol 18, No 1- Vol 18, No 6 have been indexed by DBLP [Click]
-
Mar 01, 2024 News!
Vol 19, No 1 has been published with online version [Click]