Paper 2004/257
A Weakness in Jung-Paeng-Kim's ID-based Conference Key Distribution Scheme
Junghyun Nam, Seungjoo Kim, and Dongho Won
Abstract
Very recently, Jung, Paeng and Kim [IEEE Communications Letters, Vol 8, No 7, pp 446--448, July 2004] have demonstrated the insecurity of Xu and Tilborg's ID-based conference key distribution scheme, and in addition, have revised the scheme to fix the security flaws discovered by them. However, in this paper, we show that Jung-Paeng-Kim's revised scheme is still insecure since it is vulnerable to an active attack of colluding adversaries. We also show that our attack can be easily thwarted by a simple patch.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Conference key distributionactive attackcolluding adversaries.
- Contact author(s)
- jhnam @ dosan skku ac kr
- History
- 2004-12-07: last of 2 revisions
- 2004-10-08: received
- See all versions
- Short URL
- https://ia.cr/2004/257
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/257,
author = {Junghyun Nam and Seungjoo Kim and Dongho Won},
title = {A Weakness in Jung-Paeng-Kim's {ID}-based Conference Key Distribution Scheme},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/257},
year = {2004},
url = {https://eprint.iacr.org/2004/257}
}
