Paper 2007/189
An Improved One-Round ID-Based Tripartite Authenticated Key Agreement Protocol
Meng-Hui Lim and Sanggon Lee
Abstract
A tripartite authenticated key agreement protocol is generally designed to accommodate the need of three specific entities in communicating over an open network with a shared secret key, which is used to preserve confidentiality and data integrity. Since Joux initiates the development of tripartite key agreement protocol, many prominent tripartite schemes have been proposed subsequently. In 2005, Tso et al. have proposed an ID-based non-interactive tripartite key agreement scheme with k-resilience. Based on this scheme, they have further proposed another one-round tripartite application scheme. Although they claimed that both schemes are efficient and secure, we discover that both schemes are in fact breakable. In this paper, we impose several impersonation attacks on Tso et al.'s schemes in order to highlight their flaws. Subsequently, we propose an enhanced scheme which will not only conquer their defects, but also preserve the desired security attributes of a key agreement protocol.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Key Agreement ProtocolAuthenticationTripartiteImpersonation Attacks
- Contact author(s)
- meng17121983 @ yahoo com
- History
- 2007-05-22: received
- Short URL
- https://ia.cr/2007/189
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2007/189,
author = {Meng-Hui Lim and Sanggon Lee},
title = {An Improved One-Round {ID}-Based Tripartite Authenticated Key Agreement Protocol},
howpublished = {Cryptology {ePrint} Archive, Paper 2007/189},
year = {2007},
url = {https://eprint.iacr.org/2007/189}
}
