Abstract
Peer-to-peer VoIP applications are exposed to threats in the Internet environment as they carry out conversations over the Internet, which is an electronic communication line, and its security has always been largely a matter of concern. Authentication of the caller is the first line of defense among the security principles and is an important principle to provide security in VoIP application. Authentication methods in VoIP applications are usually based on trusted third parties or through centralized architecture. This situation creates problems in terms of single point of failure and privacy in call security over IP based communications. However, blockchain technology with a distributed architecture offers an innovative solution to multimedia communication authentication model. In this paper, a blockchain-based mutual authentication scheme for VoIP applications is proposed. In addition, the model's having a comprehensive security structure against various threats is explained via security and communication cost analysis. The proposed schema shows better performance than the methods that make a verification through the centralized architecture in the literature. The proposed model has been formally verified using the AVISPA tool, and it has been proven that the model is safe against potential threats.
Highlights
Thanks to the routing function of the Internet Protocol (IP), this protocol is widely used in security systems, camera systems, communication systems and many other system infrastructures
The aim of this study presents a mutual authentication scheme over the blockchain network for secure key distribution just before the multimedia communication of P2P Voice over Internet Protocol (VoIP) applications
Authentication methods in traditional VoIP architecture usually consist of first key distribution or protocols based on central authority
Summary
Thanks to the routing function of the Internet Protocol (IP), this protocol is widely used in security systems, camera systems, communication systems and many other system infrastructures. Voice over Internet Protocol (VoIP), built on the IP protocol infrastructure, is a technology that has increased rapidly in recent years and basically allows phone calls. The most important reason for this increase is that VoIP applications provide high performance and their cost efficiency and low cost, besides scalability. VoIP technology is an important part of the communication infrastructure. Phone calls can be made over any internet-connected device, phone or computer, on which the relevant software has been installed thanks to VoIP technology. This system, on which VoIP software is installed in the VoIP application, is called an IP phone and is a telephone service provided entirely over the internet protocol infrastructure [1].
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