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 }