Paper 2008/337 Original: eprint.iacr.org/2008/337 ↗
Modified Huang-Wang's Convertible Nominative Signature Scheme
Abstract
At ACISP 2004, Huang and Wang first introduced the concept of convertible nominative signatures and also proposed a concrete scheme. However, it was pointed out by many works that Huang-Wang's scheme is in fact not a nominative signature. In this paper, we first present a security model for convertible nominative signatures. The properties of Unforgeability, Invisibility, Non-impersonation and Non-repudiation in the setting of convertible nominative signatures are defined formally. Then we modify Huang-Wang's scheme into a secure one. Formal proofs are provided to show that the modified Huang-Wang's scheme satisfies all the security properties under some conventional assumptions in the random oracle model.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2008-08-11: last updated
- 2008-08-11: published
- Short URL
- https://ia.cr/2008/337
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2008/337,
author = {Wei Zhao and Dingfeng Ye},
title = {Modified Huang-Wang's Convertible Nominative Signature Scheme},
howpublished = {Cryptology {ePrint} Archive, Paper 2008/337},
year = {2008},
url = {https://eprint.iacr.org/2008/337}
}