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A Secure Certificateless Authenticated Group Key Agreement Protocol

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3 Author(s)
Manman Geng ; Jiangsu Inf. Security & Confidentiality Technol. Eng. Res. Center Nanjing, Nanjing Normal Univ., Nanjing, China ; Futai Zhang ; Meng Gao

We present an efficient authenticated group key agreement (AGKA) protocol in certificateless public key setting (CL-AGKA). The protocol only needs two communication rounds. In each protocol run, only four pairing computations are involved for each participant. The authentication in our protocol is realized using a signature scheme which is provably secure in the strongest security model for certificateless signature (CLS) schemes where the type I/II adversary is a super type I/II adversary. The security analysis shows our protocol satisfies Key authentication, Known session key security, Key compromise impersonation security, Perfect forward security, and Known session-specific temporary information security.

Published in:

Multimedia Information Networking and Security, 2009. MINES '09. International Conference on  (Volume:1 )

Date of Conference:

18-20 Nov. 2009