An Identity‐Based Group Key Agreement Protocol for Low‐Power Mobile Devices. Issue 4 (1st July 2016)

• Record Type: Journal Article
• Authors: Teng, Jikai; Wu, Chuankun
• Is Part Of: Chinese journal of electronics. Volume 25:Issue 4(2016)
• Page Start: 726
• Page End: 733
• Publication Date: 2016-07-01
• Subjects: Imbalanced wireless mobile networks -- Identity‐based cryptography -- Dynamic group key agreement -- Forward secrecy; cryptographic protocols -- mobile communication; identity‐based group key agreement protocol -- low‐power mobile devices -- wireless mobile networks -- ID‐based dynamic authenticated group key agreement protocol -- leave algorithm -- setup algorithm -- join algorithm -- AKE‐security; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2016.06.038
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : In wireless mobile networks, group members join and leave the group frequently, a dynamic group key agreement protocol is required to provide a group of users with a shared secret key to achieve cryptographic goal. Most of previous group key agreement protocols for wireless mobile networks are static and employ traditional PKI. This paper presents an ID‐based dynamic authenticated group key agreement protocol for wireless mobile networks. In Setup and Join algorithms, the protocol requires two rounds and each low‐power node transmits constant size of messages. Furthermore, in Leave algorithm, only one round is required and none of low‐power nodes is required to transmit any message, which improves the efficiency of the entire protocol. The protocol's AKE‐security with forward secrecy is proved under Decisional bilinear inverse Diffie‐Hellman (DBIDH) assumption. It is additionally proved to be contributory.