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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...
Constant Round Dynamic Group Key Agreement
group key agreement DDH problem provable security
2009/2/17
We present a fully symmetric constant round authenticated group key agreement protocol in dynamic scenario. Our proposed scheme achieves forward secrecy and is provably secure under DDH assumption in ...
Dynamic Group Key Agreement in Tree-Based Setting
Dynamic Group Key Agreement Tree-Based Setting
2009/2/6
Dynamic Group Key Agreement in Tree-Based Setting.