A provably secure smart card-based authenticated group key exchange protocol

作者：Chang Chin Chen^*; Le Hai Duong

来源：Security and Communication Networks, 2015, 8(8): 1602-1607.

DOI：10.1002/sec.1107

• authentication
• group key
• smart card
• password
• provably secure

A password-based authenticated group key exchange protocol assists group participants who possess low-entropy, human-memorable passwords in establishing a secure communication channel. In this type of scheme, the server needs to store the users' verifiers in a database. Therefore, it is susceptible to stolen-verifier attacks. In this paper, we propose a new authenticated group key protocol that eliminates the need of verifier database at the server side. Our protocol is based on a two-factor authentication that employs both smart card and password.

• 出版日期2015-5-25