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Abstract
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Article Information:
Adaptive Universal Composability Framework for Server-Aided Threshold Signature
Xuan Hong and Luqun Li
Corresponding Author: Xuan Hong
Submitted: June 02, 2012
Accepted: June 23, 2012
Published: January 01, 2013 |
Abstract:
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The threshold signature scheme is a protocol that allows any subset of t parties out of n to generate a
signature. Since the t members can cooperate together to compute the secret key, we introduce the server-aided
threshold signature, which provides controllability for activating the signing function in a certain enhanced way.
In this study, we present a server-aided threshold RSA signature protocol against the adaptive attacks. We give
the universally composable secure model for the server-aided threshold signature primitive and prove that the
proposed protocol is claimed to be well-formed, correct and unforgeability. As a separate contribution we also
prove that it is also secure in the adaptive universal composability framework. After the discussion about the
security and the performance, we claim that the protocol is practical and efficient.
Key words: Adaptive security, server-aided, threshold signature, universal composability framework, , ,
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Cite this Reference:
Xuan Hong and Luqun Li, . Adaptive Universal Composability Framework for Server-Aided Threshold Signature. Research Journal of Applied Sciences, Engineering and Technology, (01): 270-274.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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