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Chapter and Conference Paper
Certificate-Based Signatures: New Definitions and a Generic Construction from Certificateless Signatures
Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate management problem in public key encryption. Recently, this idea has been extended to certificate-based signatures. To date,...
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Chapter and Conference Paper
Convertible Undeniable Proxy Signatures: Security Models and Efficient Construction
In the undeniable signatures, the validity or invalidity can only be verified via the Confirmation/Disavowal protocol with the help of the signer. Convertible undeniable signatures provide the flexibility that...
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Chapter and Conference Paper
Short Designated Verifier Proxy Signature from Pairings
In a designated verifier proxy signature scheme, the original signer delegates her/his signing capability to the proxy signer in such a way that the latter can sign messages on behalf of the former, but only t...
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Chapter and Conference Paper
Efficient Authentication Scheme for Routing in Mobile Ad Hoc Networks
The security deployment in mobile ad hoc networks is frequently hampered by resource constraints. The current routing systems of mobile ad hoc networks deploy very weak security techniques in order to copy wit...
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Chapter and Conference Paper
Access Policy Sheet for Access Control in Fine-Grained XML
We propose an access control scheme for develo** authorization rules for XML documents, allowing flexible data granularity and authorization propagation. To simplify the complex access control policies in XM...
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Chapter and Conference Paper
A Short Proxy Signature Scheme: Efficient Authentication in the Ubiquitous World
We present a cryptanalysis on the short proxy signature scheme recently proposed in [11] and propose a novel short proxy signature scheme from bilinear pairings. Compared with the existing proxy signature sche...
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Chapter and Conference Paper
Identity-Based Universal Designated Verifier Signatures
The notion of Universal Designated Verifier Signatures (UDVS) was introduced in the seminal paper of Steinfeld et. al. in [6]. In this paper, we firstly propose a model of identity-based (ID-based) UDVS schemes. ...