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» On The Security of a Group Key Agreement Protocol
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AFRICACRYPT
2010
Springer
14 years 2 months ago
Flexible Group Key Exchange with On-demand Computation of Subgroup Keys
Modern multi-user communication systems, including popular instant messaging tools, social network platforms, and cooperative-work applications, offer flexible forms of communica...
Michel Abdalla, Céline Chevalier, Mark Manu...
ASIACRYPT
2008
Springer
13 years 9 months ago
A Modular Security Analysis of the TLS Handshake Protocol
We study the security of the widely deployed Secure Session Layer/Transport Layer Security (TLS) key agreement protocol. Our analysis identifies, justifies, and exploits the modul...
Paul Morrissey, Nigel P. Smart, Bogdan Warinschi
CCS
2009
ACM
14 years 8 months ago
Universally composable contributory group key exchange
We treat the security of group key exchange (GKE) in the universal composability (UC) framework. Analyzing GKE protocols in the UC framework naturally addresses attacks by maliciou...
M. Choudary Gorantla, Colin Boyd, Juan Manuel Gonz...
CRYPTO
2003
Springer
96views Cryptology» more  CRYPTO 2003»
14 years 27 days ago
Scalable Protocols for Authenticated Group Key Exchange
We consider the fundamental problem of authenticated group key exchange among n parties within a larger and insecure public network. A number of solutions to this problem have bee...
Jonathan Katz, Moti Yung
STOC
2010
ACM
193views Algorithms» more  STOC 2010»
13 years 11 months ago
Privacy Amplification with Asymptotically Optimal Entropy Loss
We study the problem of "privacy amplification": key agreement between two parties who both know a weak secret w, such as a password. (Such a setting is ubiquitous on th...
Nishanth Chandran, Bhavana Kanukurthi, Rafail Ostr...