Multilateral security in intelligent networks

Kabatnik, Matthias; Keck, Dirk O.; Kruetzer, M.; Zugenmaier, Alf

doi:10.1109/inw.2000.868172

Cited by 2 publications

(1 citation statement)

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“…However, work on non-repudiation of digital voice communication is scarce. The work most closely related to ours is the proposal in [5], resting on the theory of contracts and multi-lateral security [6]. It comprises a trusted third party ('Tele-Witness') that is invoked by communicating parties to securely record conversations and make them available as evidence at any later point in time.…”

Section: Introductionmentioning

confidence: 99%

Non-Repudiation in Internet Telephony

Kuntze

Schmidt

Hett³

2007

New Approaches for Security, Privacy and Trust in Complex Environments

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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.

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Section: Introductionmentioning

confidence: 99%