Title: Leakage resilient CCA secure IBE with all-but-one lossy filter

Authors: Zhiwei Wang

Addresses: Nanjing University of Information Science and Technology, Jiangsu 210044, China; College of Computer, Nanjing University of Posts and Telecommunications, Jiangsu 210003, China

Abstract: The goal of this paper is to design an id-based encryption (IBE) scheme that can flexibly tolerate leakage bounds, by only increasing the size of secret key proportionally, and the security level can be achieved to be against chosen-ciphertext attacks (CCA). As our main technical tool for CCA security, we introduce an initiation of all-but-one lossy filter, which is a simple version of all-but-many lossy filter to the leakage resilient settings. As our main result, we use the all-but-one lossy filter to construct an IBE scheme that is secure against leakage resilient chosen-ciphertext attacks (CCA), and the leakage rate is 1/2 − ο(1).

Keywords: CCA security; chosen-ciphertext attacks; IBE; ID-based encryption; leakage rate; leakage resilience; ABO lossy filters; all-but-one lossy filters.

DOI: 10.1504/IJAHUC.2016.076366

International Journal of Ad Hoc and Ubiquitous Computing, 2016 Vol.21 No.4, pp.266 - 272

Available online: 05 May 2016 *

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