Author, as appears in the article.: Wu, Qianhong; Qin, Bo; Zhang, Lei; Domingo-Ferrer, Josep; Manjon, Jesus A
Department: Enginyeria Informàtica i Matemàtiques
URV's Author/s: Domingo Ferrer, Josep / Manjón Paniagua, Jesús Alberto / WU, QIANHONG
Keywords: Security Schemes Protocol Privacy Key management Information security Establishment Cooperative computing Broadcast encryption Broadcast Agreement Ad hoc networks Access control
Abstract: The problem of efficiently and securely broadcasting to a remote cooperative group occurs in many newly emerging networks. A major challenge in devising such systems is to overcome the obstacles of the potentially limited communication from the group to the sender, the unavailability of a fully trusted key generation center, and the dynamics of the sender. The existing key management paradigms cannot deal with these challenges effectively. In this paper, we circumvent these obstacles and close this gap by proposing a novel key management paradigm. The new paradigm is a hybrid of traditional broadcast encryption and group key agreement. In such a system, each member maintains a single public/secret key pair. Upon seeing the public keys of the members, a remote sender can securely broadcast to any intended subgroup chosen in an ad hoc way. Following this model, we instantiate a scheme that is proven secure in the standard model. Even if all the nonintended members collude, they cannot extract any useful information from the transmitted messages. After the public group encryption key is extracted, both the computation overhead and the communication cost are independent of the group size. Furthermore, our scheme facilitates simple yet efficient member deletion/addition and flexible rekeying strategies. Its strong security against collusion, its constant overhead, and its implementation friendliness without relying on a fully trusted authority render our protocol a very promising solution to many applications.
Thematic Areas: Telecommunications Software Engineering, electrical & electronic Engenharias iv Electrical and electronic engineering Computer science, theory & methods Computer science, information systems Computer science, hardware & architecture Computer science applications Computer networks and communications Ciências biológicas i Ciências ambientais Ciência da computação
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: jesus.manjon@urv.cat jesus.manjon@urv.cat jesus.manjon@urv.cat josep.domingo@urv.cat
Author identifier: 0000-0003-3513-8109 0000-0003-3513-8109 0000-0003-3513-8109 0000-0001-7213-4962
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://ieeexplore.ieee.org/document/6247486
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Ieee-Acm Transactions On Networking. 21 (2): 621-633
APA: Wu, Qianhong; Qin, Bo; Zhang, Lei; Domingo-Ferrer, Josep; Manjon, Jesus A (2013). Fast Transmission to Remote Cooperative Groups: A New Key Management Paradigm. Ieee-Acm Transactions On Networking, 21(2), 621-633. DOI: 10.1109/TNET.2012.2208201
Article's DOI: 10.1109/TNET.2012.2208201
Entity: Universitat Rovira i Virgili
Journal publication year: 2013
Publication Type: Journal Publications