Paper 2004/315
Security Arguments for Partial Delegation with Warrant Proxy Signature Schemes
Qin Wang and Zhenfu Cao
Abstract
Proxy signature is an important cryptographic primitive and has been suggested in numerous applications. In this paper, we present an attack on the aggregate-signature-based proxy signature schemes, then point out there are two flaws in BPW notion of security for proxy signature. Furthermore, we give arguments for partial delegation with warrant proxy signature schemes. We construct a new proxy signature scheme and prove that it is secure against existentially forgery on adaptively chosen-message attacks and adaptively chosen-warrant attacks under the random oracle model.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- digital signatureproxy signaturepartial delegation with warrantprovable security.
- Contact author(s)
-
chhwangqin @ sjtu edu cn
cao-zf @ cs sjtu edu cn - History
- 2004-11-17: received
- Short URL
- https://ia.cr/2004/315
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/315,
author = {Qin Wang and Zhenfu Cao},
title = {Security Arguments for Partial Delegation with Warrant Proxy Signature Schemes},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/315},
year = {2004},
url = {https://eprint.iacr.org/2004/315}
}
