Cited By
View all- Xhafa FChen XHuang XKolici V(2014)Advances in secure and intelligent data processingConcurrency and Computation: Practice & Experience10.1002/cpe.306626:5(1021-1022)Online publication date: 10-Apr-2014
Self-certified proxy convertible authenticated encryption: formal definitions and a provably secure scheme
Authors: 
Qi Xie, Guilin Wang, Fubiao Xia, Deren ChenAuthors Info & Claims
Pages 1038 - 1051
Abstract
In 2009, Wu and Lin introduced the concept of self-certified proxy convertible authenticated encryption SP-CAE by integrating self-certified public-key system and designated verifier proxy signature with message recovery. They also presented the first SP-CAE scheme which is based the discrete logarithm problem. However, Wu-Lin scheme is not secure as Xie et al. recently showed that this scheme is existentially forgeable under adaptive chosen warrants, unconfidentiable and verifiable under adaptive chosen messages and designated verifiers. In this paper, we first discuss the security requirements of SP-CAE and then formally define unforgeability, message confidentiality, and unverifiability. Consequently, the first complete formal model of SP-CAE is proposed. After that, we propose a provably secure SP-CAE scheme by using two-party Schnorr signature introduced by Nicolosi et al. in 2003. Finally, we prove the formal security of the proposed scheme in the random oracle model under the discrete logarithm assumption. Copyright © 2013 John Wiley & Sons, Ltd.
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- Self-certified proxy convertible authenticated encryption: formal definitions and a provably secure scheme
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Published: 10 April 2014
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View all- Xhafa FChen XHuang XKolici V(2014)Advances in secure and intelligent data processingConcurrency and Computation: Practice & Experience10.1002/cpe.306626:5(1021-1022)Online publication date: 10-Apr-2014