Author, as appears in the article.: Zhang, Lei; Wu, Qianhong; Domingo-Ferrer, Josep; Qin, Bo; Dong, Zheming
Department: Enginyeria Informàtica i Matemàtiques
URV's Author/s: Domingo Ferrer, Josep
Keywords: Secure group communications Secure communication Provably secure Network security Multisignature scheme Key management Identity-based cryptosystem Identity-based cryptography Identity based cryptography Group key agreement Dynamic groups Distributed computer systems Cryptography Communication security
Abstract: Modern collaborative and group-oriented applications typically involve communications over open networks. Given the openness of today's networks, communications among group members must be secure and, at the same time, efficient. Group key agreement (GKA) is widely employed for secure group communications in modern collaborative and group-oriented applications. This paper studies the problem of GKA in identity-based cryptosystems with an emphasis on round-efficient, sender-unrestricted, member-dynamic, and provably secure key escrow freeness. The problem is resolved by proposing a one-round dynamic asymmetric GKA protocol which allows a group of members to dynamically establish a public group encryption key, while each member has a different secret decryption key in an identity-based cryptosystem. Knowing the group encryption key, any entity can encrypt to the group members so that only the members can decrypt. We construct this protocol with a strongly unforgeable stateful identity-based batch multisignature scheme. The proposed protocol is shown to be secure under the k-bilinear Diffie-Hellman exponent assumption. © 2005-2012 IEEE.
Thematic Areas: Safety, risk, reliability and quality Interdisciplinar Engineering, electrical & electronic Engenharias iv Engenharias iii Computer science, theory & methods Computer networks and communications Ciência da computação
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: josep.domingo@urv.cat
Author identifier: 0000-0001-7213-4962
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/submittedVersion
Link to the original source: https://ieeexplore.ieee.org/document/7128688
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Ieee Transactions On Information Forensics And Security. 10 (11): 2352-2364
APA: Zhang, Lei; Wu, Qianhong; Domingo-Ferrer, Josep; Qin, Bo; Dong, Zheming (2015). Round-Efficient and Sender-Unrestricted Dynamic Group Key Agreement Protocol for Secure Group Communications. Ieee Transactions On Information Forensics And Security, 10(11), 2352-2364. DOI: 10.1109/TIFS.2015.2447933
Article's DOI: 10.1109/TIFS.2015.2447933
Entity: Universitat Rovira i Virgili
Journal publication year: 2015
Publication Type: Journal Publications
Repositori URV