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On the security of an identity-based authenticated group key agreement protocol for imbalanced mobile networks
passive attack forward secrecy backward secrecy
2013/2/21
Recently, Islam and Biswas proposed a pairing-free identity-based authenticated group key agreement protocol for imbalanced mobile networks. However, in this letter, we point out that this protocol ca...
Cryptanalysis of a pairing-free identity-based authenticated group key agreement protocol for imbalanced mobile networks
group key agreement imbalanced mobile networks
2013/2/21
Recently, Isalam and Biswas proposed a new group key agreement (GKA) protocol for imbalanced mobile networks. In this letter, we will show that Isalam et al.’s GKA protocol is not secure.
Two Attacks on Dutta’s Dynamic Group Key Agreement Protocol
attack group key agreement dynamic impersonation
2010/9/9
Ratna Dutta and Rana Barua proposed a dynamic group key agreement protocol with constant round referred to as DGKA protocol. They claimed that the DGKA protocol is dynamic, efficient and provably secu...
An Authenticated Group Key Agreement Protocol on Braid groups
braid groups conjugacy problem key agrement protocol
2009/4/8
In this paper, we extend the 2-party key exchange protocol on braid groups
to the group key agreement protocol based on the hardness of Ko-Lee problem. We also
provide authenticity to the group key ...
Provably Secure Authenticated Tree Based Group Key Agreement Protocol
Secure Authenticated Tree Group Key Agreement Protocol
2009/3/25
Provably Secure Authenticated Tree Based Group Key Agreement Protocol.
In this paper we show that the group key agreement protocol pro-
posed by Tseng suffers from a number of serious security vulnerabili-
ties.