STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Provably authenticated group Diffie-Hellman key exchange
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Efficient Identification and Signatures for Smart Cards
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
Analysis of Key-Exchange Protocols and Their Use for Building Secure Channels
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Just fast keying: Key agreement in a hostile internet
ACM Transactions on Information and System Security (TISSEC)
An Efficient ID-Based Deniable Authentication Protocol from Pairings
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
New approaches for deniable authentication
Proceedings of the 12th ACM conference on Computer and communications security
Efficient Non-interactive Deniable Authentication Protocols
CIT '05 Proceedings of the The Fifth International Conference on Computer and Information Technology
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th 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
Deniable authenticated key establishment for internet protocols
Proceedings of the 11th international conference on Security Protocols
A framework for robust group key agreement
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part III
Modeling Key Compromise Impersonation Attacks on Group Key Exchange Protocols
Irvine Proceedings of the 12th International Conference on Practice and Theory in Public Key Cryptography: PKC '09
Generic one round group key exchange in the standard model
ICISC'09 Proceedings of the 12th international conference on Information security and cryptology
A deniable group key establishment protocol in the standard model
ISPEC'10 Proceedings of the 6th international conference on Information Security Practice and Experience
Scalable deniable group key establishment
FPS'12 Proceedings of the 5th international conference on Foundations and Practice of Security
Improved group off-the-record messaging
Proceedings of the 12th ACM workshop on Workshop on privacy in the electronic society
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Especially for key establishment protocols to be used in internet applications, the (privacy) concern of deniability arises: Can a protocol transcript be used—possibly by a participant—to prove the involvement of another party in the protocol? For two party key establishment protocols, a common technique for achieving deniability is the replacement of signature-based message authentication with authentication based on symmetric keys. We explore the question of deniability in the context of group key establishment : Taking into account malicious insiders, using a common symmetric key for authentication is critical, and the question of how to achieve deniability arises. Building on a model of Bresson et al., we offer a formalization of deniability and present a group key agreement offering provable security in the usual sense, deniability, and security guarantees against malicious insiders. Our approach for achieving deniability through a suitably distributed Schnorr-signature might also be of independent interest.