Securing group key exchange against strong corruptions and key registration attacks

: In Group Key Exchange (GKE) protocols, users usually extract the group key using some auxiliary (ephemeral) secret information generated during the execution. Strong corruptions are attacks by which an adversary can reveal these ephemeral secrets, in addition to the possibly used long-lived keys. Undoubtedly, security impact of strong corruptions is serious, and thus specifying appropriate security requirements and designing secure GKE protocols appears an interesting yet challenging task

• Type: Journal
• Year: 2008
• Where: IJACT
• Authors: Emmanuel Bresson, Mark Manulis
• Keywords: Gke Protocol, Group Key, IJACT 2008, Strong Corruptions