Protocol reverse engineering stands as the cutting-edge approach in security research. This paper presents a framework capable of reverse engineering the communications within a mobile communication system. Our focus is on systems released by the 3GPP, with an emphasis on 5G NR. Our approach leverages the available context and syntax of the 5G standard to predict subsequent messages. This approach relies on a Transformer model and is trained based on an open-source 5G system implementation, emulating a base station and several user equipments. The prediction targets messages at the physical layer.

翻译：协议逆向工程是安全研究领域的前沿技术。本文提出了一种框架，能够对移动通信系统中的通信过程进行逆向工程。我们重点关注3GPP发布的系统，尤其是5G NR。该方法利用5G标准的现有上下文和语法来预测后续消息。该方案基于Transformer模型，并在模拟基站及多个用户设备的开源5G系统实现上进行训练，预测目标为物理层消息。