Paper 2006/252
On the Resilience of Key Agreement Protocols to Key Compromise Impersonation
Maurizio A. Strangio
Abstract
Key agreement protocols are a fundamental building block for ensuring authenticated and private communications between two parties over an insecure network. This paper focuses on key agreement protocols in the asymmetric authentication model, wherein parties hold a public/private key pair. In particular, we consider a type of known key attack called key compromise impersonation that may occur once the adversary has obtained the private key of an honest party. This attack represents a subtle threat that is often underestimated and difficult to counter. Several protocols are shown vulnerable to this attack despite their authors claiming the opposite. We also consider in more detail how three formal (complexity-theoretic based) models of distributed computing found in the literature cover such attacks.
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Proceedings of the 3rd European PKI Workshop, EuroPKI06
- Keywords
- key compromise impersonationkey agreement protocol
- Contact author(s)
- strangio @ disp uniroma2 it
- History
- 2006-07-24: received
- Short URL
- https://ia.cr/2006/252
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2006/252,
author = {Maurizio A. Strangio},
title = {On the Resilience of Key Agreement Protocols to Key Compromise Impersonation},
howpublished = {Cryptology {ePrint} Archive, Paper 2006/252},
year = {2006},
url = {https://eprint.iacr.org/2006/252}
}
