In a previous letter, we proposed the distributed slice mobility (DSM) attack. The DSM attack can cause severe performance and economic damage to 5G networks. Attackers can launch the DSM attack by exploiting a vulnerability in the existing slice selection protocol. In this letter, we propose a DSM attack resistant slice selection protocol for 5G networks. In the proposed protocol, the network selects the best slice for a session between a user and an external data network based on the type of services offered by the external data network and the user's subscription details. The proposed protocol implements neutral slice selection and mitigation of traffic analysis attacks by ensuring user anonymity. The proposed protocol is implemented, and its computation overhead is compared with that of the traditional protocol and a privacy preserving slice selection protocol.

中文翻译：

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5G中DSM抗攻击切片选择


在上一封信中，我们提出了分布式切片移动性（DSM）攻击。 DSM 攻击可能会对 5G 网络造成严重的性能和经济损失。攻击者可以利用现有切片选择协议中的漏洞发起DSM攻击。在这封信中，我们提出了一种针对 5G 网络的 DSM 抗攻击切片选择协议。在所提出的协议中，网络根据外部数据网络提供的服务类型和用户的订阅详细信息为用户和外部数据网络之间的会话选择最佳切片。所提出的协议通过确保用户匿名来实现中立的切片选择和减轻流量分析攻击。实现了所提出的协议，并将其计算开销与传统协议和隐私保护切片选择协议进行了比较。