Universally Composable Attribute-based Group Key Exchange

DOI

10.2991/icmmct-18.2018.67How to use a DOI?

Keywords

attribute-based group key exchange, universal composability, random oracle, encapsulation policy attribute-based key encapsulation mechanism, ACK property

Abstract

Several protocols implementing attribute-based group key exchange, which allows users with certain set of attributes to establish a session key, have been proposed in recent years. However, attacks on attribute-based group key exchange in current research have been considered only in stand-alone fashion. Thus these protocols may be vulnerable when run with other protocol sessions concurrently. We treat the security of attribute-based group key exchange in the universal composability framework to ensure that a protocol remains secure when run with arbitrary protocol sessions concurrently. More specifically, we define an ideal functionality for attribute-based group key exchange first, then propose a two-round protocol based on a primitive called encapsulation policy attribute-based key encapsulation mechanism. In addition, a complete security proof of our protocol in the universal composability framework under random oracle model is given.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zenghui Zhao
AU  - Yunfang Hao
PY  - 2018/06
DA  - 2018/06
TI  - Universally Composable Attribute-based Group Key Exchange
BT  - Proceedings of the 2018 6th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2018)
PB  - Atlantis Press
SP  - 343
EP  - 346
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-18.2018.67
DO  - 10.2991/icmmct-18.2018.67
ID  - Zhao2018/06
ER  -