Paper Info
Title
Identity-based encryption with leakage-amplified chosen-ciphertext attacks security.
Abstract
Alwen et al. (EUROCRYPT 2010) proposed the formal definition of identity-based hash proof system (IB-HPS). As an independent interest, they showed that a leakage-resilient identity-based encryption (LR-IBE) scheme can be created based on an IB-HPS. That is, a generic construction of LR-IBE scheme with the chosen-plaintext attacks (CPA) security be designed from the IB-HPS. However, in order to further improve the practicability of identity-based encryption (IBE) system, an IBE scheme must have the chosen-ciphertext attacks (CCA) security. Hence, in this paper, a generic construction of LR-IBE scheme with the CCA security is proposed from the IB-HPS. In additional, to design an LR-IBE schemes with an arbitrarily length leakage parameter, we design a novel generic construction of leakage amplified IBE scheme with CCA security, where we only increase the size of private key proportionally, while do not change all other parameters, and the upper bound of permitted leakage can be flexibly controlled by changing the leakage-size parameter. In other words, the length of allowed leakage of our generic construction is determined by the leakage requirements of actual applications.
Year
DOI
Venue
2020
10.1016/j.tcs.2019.12.018
Theoretical Computer Science
Keywords
Field
DocType
Identity-based encryption,Leakage resilience,Generic construction,Identity-based hash proof system,CCA security
Discrete mathematics,Leakage (electronics),Upper and lower bounds,Encryption,Formal description,Theoretical computer science,Hash function,Ciphertext,Public-key cryptography,Mathematics
Journal
Volume
ISSN
Citations 
809
0304-3975
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Yanwei Zhou12211.90
Bo Yang2903100.69
Zhe Xia3198.17
Mingwu Zhang413.74
Yi Mu52884239.05