DABKE: Secure deniable attribute-based key exchange framework

Authors

Yangguang Tian, Singapore Management UniversityFollow
Yingjiu Li, Singapore Management University
Guomin Yang, University of WollongongFollow
Willy Susilo, University of WollongongFollow
Yi Mu, Fujian Normal UniversityFollow
Hui Cui, Royal Melbourne Institute of TechnologyFollow
Yinghui Zhang, Singapore Management University

RIS ID

135027

Publication Details

Tian, Y., Li, Y., Yang, G., Susilo, W., Mu, Y., Cui, H. & Zhang, Y. (2019). DABKE: Secure deniable attribute-based key exchange framework. Journal of Computer Security, 27 (2), 259-275.

Abstract

We introduce the first deniable attribute-based key exchange (DABKE) framework that is resilient to impersonation attacks. We define the formal security models for DABKE framework, and propose a generic compiler that converts any attribute-based key exchanges into deniable ones. We prove that it can achieve session key security and user privacy in the standard model, and strong deniability in the simulation-based paradigm. In particular, the proposed generic compiler ensures: 1) a dishonest user cannot impersonate other user's session participation in conversations since implicit authentication is used among authorized users; 2) an authorized user can plausibly deny his/her participation after secure conversations with others; 3) the strongest form of deniability is achieved using one-round communication between two authorized users.