Secure End-to-End VoLTE Based on Ethereum Blockchain
Secure End-to-End VoLTE Based on Ethereum Blockchain
复制标题
基于以太坊区块链的安全端到端 VoLTE
DOI：
10.1109/tsp.2018.8441204
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
David J. Khoury
中科院分区：
文献类型：
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作者：
Elie F. Kfoury;David J. Khoury
长期演进语音（VoLTE）技术定义了基于IP多媒体子系统（IMS）网络通过LTE提供语音和视频等实时服务的标准。VoLTE中的安全实现是端到接入（e2a），这意味着会话仅在移动的终端和IMS网络之间加密。在本文中，我们提出了一种基于以太坊区块链的端到端（e2e）VoLTE媒体安全的新方法。该解决方案包括为VoLTE用户设备（UE）创建公钥和私钥对，并将公钥存储在以太坊区块链中。使用具有各种会话密钥分发机制的安全真实的时间协议（SRTP）协议对媒体进行e2e加密。结果表明，该解决方案的实施对现有IMS网络的影响最小，与原始VoLTE建立时间相比，两个终端之间的安全呼叫建立时间可以忽略不计。
Voice over Long Term Evolution (VoLTE) technology defines standards to deliver real-time services such as voice and video over LTE based on IP Multimedia Subsystem (IMS) networks. The security implementation in VoLTE is End-to-Access (e2a), which means that the sessions are only encrypted between the mobile terminals and the IMS network. In this paper we propose a new approach for securing End-to-End (e2e) VoLTE media based the Ethereum Blockchain. The solution consists of creating public and private keypairs for VoLTE user equipments (UEs) and storing the public keys in the Ethereum Blockchain. The media is encrypted e2e using the Secure Real Time Protocol (SRTP) protocol with a variety of session key distribution mechanisms. Results showed that the solution implementation has minimal impact on the existing IMS network, and the secure call setup time between two terminals is negligible compared to the original VoLTE setup time.