Specifying and using a partitionable group communication service
PODC '97 Proceedings of the sixteenth annual ACM symposium on Principles of distributed computing
Authenticated group key agreement and friends
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
Secure group communications using key graphs
IEEE/ACM Transactions on Networking (TON)
ACM Transactions on Computer Systems (TOCS)
Key Agreement in Dynamic Peer Groups
IEEE Transactions on Parallel and Distributed Systems
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Batch rekeying for secure group communications
Proceedings of the 10th international conference on World Wide Web
Reliable group rekeying: a performance analysis
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Distributed Collaborative Key Agreement Protocols for Dynamic Peer Groups
ICNP '02 Proceedings of the 10th IEEE International Conference on Network Protocols
Authenticated Multi-Party Key Agreement
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Communication-Efficient Group Key Agreement
IFIP/Sec '01 Proceedings of the IFIP TC11 Sixteenth Annual Working Conference on Information Security: Trusted Information: The New Decade Challenge
Key Establishment in Large Dynamic Groups Using One-Way Function Trees
IEEE Transactions on Software Engineering
Kronos: A Scalable Group Re-Keying Approach for Secure Multicast
SP '00 Proceedings of the 2000 IEEE Symposium on Security and Privacy
Secure Group Communication Using Robust Contributory Key Agreement
IEEE Transactions on Parallel and Distributed Systems
Tree-based group key agreement
ACM Transactions on Information and System Security (TISSEC)
IEEE/ACM Transactions on Networking (TON)
New directions in cryptography
IEEE Transactions on Information Theory
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We present the SEcure communicAtion Library (SEAL) [source can be downloaded from: http://www.cse.cuhk.edu.hk/~cslui/ANSRlab/software/SEAL/], a Linux-based C language application programming interface (API) library that implements secure group key agreement algorithms that allow a communication group to periodically renew a common secret group key for secure and private communication. The group key agreement protocols satisfy several important characteristics: distributed property (i.e., no centralized key server is needed), collaborative property (i.e., every group member contributes to the group key), and dynamic property (i.e., group members can join or leave the group without impairing the efficiency of the group key generation). Using SEAL, we developed a testing tool termed Gauger to evaluate the performance of the group key agreement algorithms in both wired and wireless LANs according to different levels of membership dynamics. We show that our implementation achieves robustness when there are group members leaving the communication group in the middle of a rekeying operation. We also developed a secure chat-room application termed Chatter to illustrate the usage of SEAL. Our SEAL implementation demonstrates the effectiveness of group key agreement in real network settings.