Paper 2003/011
Cryptanalysis of Lee-Hwang-Li's Key Authentication Scheme
Fangguo Zhang and Kwangjo Kim
Abstract
Key authentication is very important in secret communications and data security. Recently, Lee, Hwang and Li proposed a new public key authentication scheme for cryptosystems with a trusty server. However, in this paper, we will show that Lee-Hwang-Li's key authentication scheme is not secure, from the obtained public information, any one can get the private key of the user. And then, we propose an improved scheme. We conclude that our new key authentication scheme not only resolves the problems appeared but also is secure.
Metadata
- Available format(s)
-
PDF
PS
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Key authentication schemeCryptanalysisCertificatePassword.
- Contact author(s)
- zhfg @ icu ac kr
- History
- 2003-03-12: revised
- 2003-01-22: received
- See all versions
- Short URL
- https://ia.cr/2003/011
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2003/011,
author = {Fangguo Zhang and Kwangjo Kim},
title = {Cryptanalysis of Lee-Hwang-Li's Key Authentication Scheme},
howpublished = {Cryptology ePrint Archive, Paper 2003/011},
year = {2003},
note = {\url{https://eprint.iacr.org/2003/011}},
url = {https://eprint.iacr.org/2003/011}
}
