Paper 2018/915
On the Security of a Certificateless Strong Designated Verifier Signature Scheme
Nasrollah Pakniat
Abstract
Recently, Chen et al. proposed the first non-delegatable certificateless strong designated verifier signature scheme and claimed that their scheme achieves all security requirements. However, in this paper, we disprove their claim and present a concrete attack which shows that their proposed scheme is forgeable. More precisely, we show that there exist adversaries who are able to forge any signer's signature for any designated verifier on any message of his choice.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- Certificateless cryptographyCryptanalysisDesignated verifier signatureNon-delegatability
- Contact author(s)
- pakniat @ irandoc ac ir
- History
- 2018-09-26: received
- Short URL
- https://ia.cr/2018/915
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2018/915,
author = {Nasrollah Pakniat},
title = {On the Security of a Certificateless Strong Designated Verifier Signature Scheme},
howpublished = {Cryptology {ePrint} Archive, Paper 2018/915},
year = {2018},
url = {https://eprint.iacr.org/2018/915}
}
