Skip to Main content Skip to Navigation
Conference papers

Watermark-Based Authentication and Key Exchange in Teleconferencing Systems

Abstract : In this paper we propose an architecture which combines watermarking with traditional cryptographic key agreement protocols to establish an authenticated or encrypted channel in teleconferencing systems. Technically the proposed method embeds messages of the key agreement protocol within an audio or video stream and is based on the assumption that the human communication partners can recognize each other easily; the watermark establishes a close coupling between the cryptographic key exchange messages and the media stream. We argue that the security of the scheme is based on a yet unexplored security property of digital watermarks; furthermore we present preliminary research results that suggest that this property holds in standard watermarking schemes.
Document type :
Conference papers
Complete list of metadata

Cited literature [5 references]  Display  Hide  Download
Contributor : Hal Ifip Connect in order to contact the contributor
Submitted on : Monday, August 18, 2014 - 6:18:07 PM
Last modification on : Thursday, January 6, 2022 - 11:38:04 AM
Long-term archiving on: : Thursday, November 27, 2014 - 5:32:09 AM


Files produced by the author(s)


Distributed under a Creative Commons Attribution 4.0 International License



Ulrich Rührmair, Stefan Katzenbeisser, Martin Steinebach, Sascha Zmudzinski. Watermark-Based Authentication and Key Exchange in Teleconferencing Systems. 11th IFIP TC 6/TC 11 International Conference on Communications and Multimedia Security (CMS), May 2010, Linz, Austria. pp.75-80, ⟨10.1007/978-3-642-13241-4_8⟩. ⟨hal-01056366⟩



Record views


Files downloads