CryptoDB
Noninteractive two-channel message authentication based on hybrid-collision resistant hash functions
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| Abstract: | We consider the problem of non-interactive message authentication using two channels: an insecure broadband channel and an authenticated narrow-band channel. This problem has been considered in the context of ad hoc networks, where it is assumed that there is neither a secret key shared among the two parties, nor a public-key infrastructure in place. We present a formal model for protocols of this type, along with a new protocol which is as efficient as the best previous protocols. The security of our protocol is based on a new property of hash functions that we introduce, which we name ``hybrid-collision resistance''. |
BibTeX
@misc{eprint-2006-21793,
title={Noninteractive two-channel message authentication based on hybrid-collision resistant hash functions},
booktitle={IACR Eprint archive},
keywords={cryptographic protocols / message authentication, hybrid-collisions},
url={http://eprint.iacr.org/2006/302},
note={ amashatan@uwaterloo.ca 13393 received 2 Sep 2006},
author={Atefeh Mashatan and Douglas R. Stinson},
year=2006
}