Paper 2007/011 Original: eprint.iacr.org/2007/011 ↗

Universally Composable Key-evolving Signature

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.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2007-01-19: last updated
2007-01-19: published
Short URL
https://ia.cr/2007/011
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2007/011,
      author = {Jin Zhou and TingMao Chang and YaJuan Zhang and YueFei Zhu},
      title = {Universally Composable Key-evolving Signature},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/011},
      year = {2007},
      url = {https://eprint.iacr.org/2007/011}
}
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