Secure End-to-End VoIP System Based on Ethereum Blockchain

Secure End-to-End VoIP System Based on Ethereum Blockchain
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基于以太坊区块链的安全端到端 VoIP 系统

DOI：
10.12720/jcm.13.8.450-455
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发表时间：
2018
期刊：
J. Commun.
影响因子：
--
通讯作者：
David J. Khoury
David J. Khoury
中科院分区：
--
文献类型：
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作者：
Elie F. Kfoury;David J. Khoury

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— 区块链是一种新兴的点对点技术，可实现网络去中心化并通过消除单点故障来确保可用性。此外，它通过依赖对等点之间的共识算法和协议来提供数据不变性，以解决信任问题。在本文中，我们提供了一个基于区块链的去中心化密钥库，用于保存用户的加密公钥。这种方法消除了使用中央机构（证书颁发机构）分发公钥的传统机制。在IP语音（VoIP）应用中，呼叫者可以从区块链中检索被呼叫者的公钥，并确保检索到的公钥的真实性。因此，VoIP 安全的复杂性和复杂性在信令和媒体层面都得到了简化。该解决方案的实施结果表明，与现有的安全 VoIP 解决方案相比，呼叫建立时间受到的影响较小。
 — Blockchain is an emergent peer-to-peer technology that enables network decentralization and ensures availability by eliminating single points of failures. Furthermore, it provides data immutability by relying on consensus algorithms and protocols among peers to solve the trust concerns. In this article we provide a decentralized Blockchain-based keystore that holds the cryptographic public keys of users. This method eliminates the traditional mechanisms of distributing the public keys using central authorities (Certificate Authority). In a Voice over IP (VoIP) application, a caller can retrieve the public key of the callee from the Blockchain, and ensure the authenticity of the retrieved public key. Thus, the VoIP security complexity and intricacy are simplified on both signaling and media levels. Results of this solution implementation show that the call setup time is slightly affected compared to the existing secure VoIP solutions.