BibTeX Record for

'Non-Repudiation in Internet Telephony'

@INPROCEEDINGS{KuntzeSchmidtHett2007, author = {Nicolai Kuntze and Andreas U. Schmidt and Christian Hett}, title = {Non-Repudiation in Internet Telephony}, booktitle = {New Approaches for Security, Privacy and Trust in Complex Systems}, year = {2007}, editor = {H. Venter and M. Eloff and L. Labuschagne and J. Eloff and R. von Solms}, volume = {232}, series = {IFIP International Federation for Information Processing}, pages = {361-372}, address = {Boston}, publisher = {Springer}, abstract = {We present a concept to achieve non-repudiation for natural language conversations over the Internet. The method rests on chained electronic signatures applied to pieces of packet-based, digital, voice communication. It establishes the integrity and authenticity of the bidirectional data stream and its temporal sequence and thus the security context of a conversation. The concept is close to the protocols for Voice over the Internet (VoIP), provides a high level of inherent security, and extends naturally to multilateral non-repudiation,e.g., for conferences. Signatures over conversations can become true declarations of will in analogy to electronically signed, digital documents. This enables binding verbal contracts, in principle between unacquainted speakers, and in particular without witnesses. A reference implementation of a secure VoIP archive is exhibited.}, arxiv = {cs.CR/0701145}, url = {}, }