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INFORMATICALT
2010
107views more  INFORMATICALT 2010»
13 years 1 months ago
Analysis and Improvement on a Contributory Group Key Exchange Protocol Based on the Diffie-Hellman Technique
Abstract. In 2008, based on the two-party Diffie
Yuh-Min Tseng, Tsu-Yang Wu
CCS
2008
ACM
13 years 6 months ago
Securing group key exchange against strong corruptions
When users run a group key exchange (GKE) protocol, they usually extract the key from some auxiliary (ephemeral) secret information generated during the execution. Strong corrupti...
Emmanuel Bresson, Mark Manulis
ASIACRYPT
2006
Springer
13 years 8 months ago
A Scalable Password-Based Group Key Exchange Protocol in the Standard Model
This paper presents a secure constant-round password-based group key exchange protocol in the common reference string model. Our protocol is based on the group key exchange protoco...
Michel Abdalla, David Pointcheval
CRYPTO
2003
Springer
96views Cryptology» more  CRYPTO 2003»
13 years 9 months 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
ASIACRYPT
2004
Springer
13 years 10 months ago
Constant-Round Authenticated Group Key Exchange for Dynamic Groups
Abstract. An authenticated group key exchange (AGKE) scheme allows a group of users in a public network to share a session key which may later be used to achieve desirable cryptogr...
Hyun-Jeong Kim, Su-Mi Lee, Dong Hoon Lee
PODC
2004
ACM
13 years 10 months ago
Asynchronous group key exchange with failures
Group key exchange protocols allow a group of servers communicating over an asynchronous network of point-to-point links to establish a common key, such that an adversary which fu...
Christian Cachin, Reto Strobl
FC
2007
Springer
125views Cryptology» more  FC 2007»
13 years 10 months ago
Scalable Authenticated Tree Based Group Key Exchange for Ad-Hoc Groups
Task-specific groups are often formed in an ad-hoc manner within big structures, like companies. Take the following typical scenario: A high rank manager decides that a task force...
Yvo Desmedt, Tanja Lange, Mike Burmester
ATC
2007
Springer
13 years 10 months ago
Malicious Participants in Group Key Exchange: Key Control and Contributiveness in the Shadow of Trust
Group key exchange protocols allow their participants to compute a secret key which can be used to ensure security and privacy for various multi-party applications. The resulting g...
Emmanuel Bresson, Mark Manulis
CCS
2009
ACM
14 years 5 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...