Password-Based Group Authenticated Key Exchange Protocol: From 3-Party to Group

Author

Wang, Minghui ; Pan, Junhua ; Wang, Jiandong

Author_Institution

Sch. of Inf. Eng., Yancheng Inst. of Technol., Yancheng, China

Volume

1

fYear

2011

fDate

14-15 May 2011

Firstpage

239

Lastpage

241

Abstract

Password-based authenticated group key exchange (denoted by PGKE) provides n parties who hold a common human-memorable password for secure group communication. In this paper, applying the cryptographic technique to a password-authenticated 2-party key establishment protocol without random oracle assumption, a password-authenticated group key exchange under the help of a trusted server with CDH assumption is proposed. Comparing with other existing protocols, this protocol does not require any Server´s public key and encryption of simple password (low-entropy).

Keywords

authorisation; cryptographic protocols; CDH assumption; PGKE protocol; cryptographic technique; group communication security; human-memorable password; password authenticated 2-party key establishment protocol; password-based group authenticated key exchange protocol; three-party PGKE protocol; trusted server; Authentication; Computers; Electronic mail; Protocols; Public key; Servers; BAN Logic; Group Key Exchange; Password-based Authentication;

fLanguage

English

Publisher

ieee

Conference_Titel

Network Computing and Information Security (NCIS), 2011 International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-61284-347-6

Type

conf

DOI

10.1109/NCIS.2011.54

Filename

5948724