Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Iolus: a framework for scalable secure multicasting
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Information Processing Letters
Secure group communications using key graphs
IEEE/ACM Transactions on Networking (TON)
Key Agreement in Dynamic Peer Groups
IEEE Transactions on Parallel and Distributed Systems
Provably authenticated group Diffie-Hellman key exchange
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Handbook of Applied Cryptography
Handbook of Applied Cryptography
A Secure Fault-Tolerant Conference-Key Agreement Protocol
IEEE Transactions on Computers
Corrections to "A Secure Fault-Tolerant Conference-Key Agreement Protocol"
IEEE Transactions on Computers
A Secure Audio Teleconference System
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
Wallet Databases with Observers
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
The Design of a Conference Key Distribution System
ASIACRYPT '92 Proceedings of the Workshop on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Dynamic Group Diffie-Hellman Key Exchange under Standard Assumptions
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Efficient and Secure Conference-Key Distribution
Proceedings of the International Workshop on Security Protocols
Round-Optimal Contributory Conference Key Agreement
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
The Decision Diffie-Hellman Problem
ANTS-III Proceedings of the Third International Symposium on Algorithmic Number Theory
CLIQUES: A New Approach to Group Key Agreement
ICDCS '98 Proceedings of the The 18th International Conference on Distributed Computing Systems
A Security Analysis of the Cliques Protocols Suites
CSFW '01 Proceedings of the 14th IEEE workshop on Computer Security Foundations
A scalable key-management scheme with minimizing key storage for secure group communications
International Journal of Network Management
A Robust Multi-Party Key Agreement Protocol Resistant to Malicious Participants
The Computer Journal
Modeling insider attacks on group key-exchange protocols
Proceedings of the 12th ACM conference on Computer and communications security
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Lower bounds for discrete logarithms and related problems
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Authenticated key exchange secure against dictionary attacks
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Security properties of two authenticated conference key agreement protocols
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
New directions in cryptography
IEEE Transactions on Information Theory
An improved algorithm for computing logarithms over and its cryptographic significance (Corresp.)
IEEE Transactions on Information Theory
A conference key distribution system
IEEE Transactions on Information Theory
A public key cryptosystem and a signature scheme based on discrete logarithms
IEEE Transactions on Information Theory
New multiparty authentication services and key agreement protocols
IEEE Journal on Selected Areas in Communications
Conference key distribution schemes for secure digital mobile communications
IEEE Journal on Selected Areas in Communications
New cryptosystems design based on hybrid-mode problems
Computers and Electrical Engineering
Security weakness of Tseng's fault-tolerant conference-key agreement protocol
Journal of Systems and Software
An efficient fault-tolerant group key agreement protocol
Computer Communications
International Journal of Mobile Communications
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A conference-key establishment protocol allows participants to construct a common session key that is used to encrypt/decrypt transmitted messages among the participants over an open channel. There are two kinds of conference-key establishment protocols: conference-key distribution and conference-key agreement. In a conference-key distribution protocol, a trusted or elected entity is responsible for generating and distributing the conference key. A conference-key agreement protocol involves all participants cooperatively establishing a conference key. This article designs a secure conference-key agreement protocol with constant round number and message size. Under the decision Diffie-Hellman problem assumption, the resulting protocol is demonstrated to be secure against passive adversaries. Under the random oracle model, the proposed protocol is demonstrated to be provable secure against impersonator attacks and withstand known-key attacks. Compared to previously proposed protocols with round-efficiency, the proposed protocol requires a constant message size for each participant. Furthermore, the proposed protocol possesses both fault tolerance and forward secrecy, while previously proposed protocols with round-efficiency lack one or both properties.