Welcome to the resource topic for 2007/011
Title:
Universally Composable Key-evolving Signature
Authors: Jin Zhou, TingMao Chang, YaJuan Zhang, YueFei Zhu
Abstract:The standard digital signature scheme can be easily subject to key exposure problem In order to overcome this problem; a feasible and effective approach is employed by key-evolving signature scheme. In this paper, we study key- evolving signature within the UC framework and propose an appropriate ideal functionality that captures the basic security requirements of key-evolving signature. Then, we present a generic way to transform a key-evolving signature scheme into a real-life protocol. Finally, we show that UC definition of security is equivalent to previous definition of security which is termed as EU-CMA security.
ePrint: https://eprint.iacr.org/2007/011
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