Certificate-based encryption resilient to key leakage

Yu, Qihong, Li, Jiguo, Zhang, Yichen, Wu, Wei, Huang, Xinyi and Xiang, Yang 2016, Certificate-based encryption resilient to key leakage, Journal of systems and software, vol. 116, pp. 101-112, doi: 10.1016/j.jss.2015.05.066.

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Title Certificate-based encryption resilient to key leakage
Author(s) Yu, Qihong
Li, Jiguo
Zhang, Yichen
Wu, Wei
Huang, Xinyi
Xiang, YangORCID iD for Xiang, Yang orcid.org/0000-0001-5252-0831
Journal name Journal of systems and software
Volume number 116
Start page 101
End page 112
Total pages 12
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-06
ISSN 0164-1212
1873-1228
Keyword(s) certificate-based encryption
master secret key leakage
dual system encryption
Summary Certificate-based encryption (CBE) is an important class of public key encryption but the existing schemes are secure only under the premise that the decryption key (or private key) and master secret key are absolutely secret. In fact, a lot of side channel attacks and cold boot attacks can leak secret information of a cryptographic system. In this case, the security of the cryptographic system is destroyed, so a new model called leakage-resilient (LR) cryptography is introduced to solve this problem. While some traditional public key encryption and identity-based encryption with resilient-leakage schemes have been constructed, as far as we know, there is no leakage-resilient scheme in certificate-based cryptosystems. This paper puts forward the first certificate-based encryption scheme which can resist not only the decryption key leakage but also the master secret key leakage. Based on composite order bilinear group assumption, the security of the scheme is proved by using dual system encryption. The relative leakage rate of key is close to 1/3.
Language eng
DOI 10.1016/j.jss.2015.05.066
Field of Research 080303 Computer System Security
Socio Economic Objective 970108 Expanding Knowledge in the Information and Computing Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30077773

Document type: Journal Article
Collections: School of Information Technology
2018 ERA Submission
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