JUCS - Journal of Universal Computer Science 19(10): 1351-1374, doi: 10.3217/jucs-019-10-1351
Key-Insulated Signcryption
Jia Fan‡, Yuliang Zheng§, Xiaohu Tang|‡ Science and Technology on Communication Security Laboratory, Chengdu, China§ University of North Carolina at Charlotte, Charlotte, United States of America| Southwest Jiaotong University, Chengdu, China
Corresponding author: Jia Fan ( fanjia0628@gmail.com ) © Jia Fan, Yuliang Zheng, Xiaohu Tang. This article is freely available under the J.UCS Open Content License. Citation:
Fan J, Zheng Y, Tang X (2013) Key-Insulated Signcryption. JUCS - Journal of Universal Computer Science 19(10): 1351-1374. https://doi.org/10.3217/jucs-019-10-1351 |  |
Abstract
Signcryption is a public key cryptographic technique that is particularly suited for mobile communications thanks to its light computational and communication overhead. The wide spread use of signcryption in a mobile computing environment, however, is accompanied by an increased risk of private key exposure. This paper addresses the issue of key exposure by proposing a key-insulated signcryption technique. We define a security model for key-insulated signcryption and prove that the keyinsulated signcryption technique is provably secure in the security model.
Keywords
signcryption, key exposure, key insulation