CAP-SIP-Guard: Alerting for 5G Edge IoT Authentication-Hijacking in Heterogeneous Autonomous Systems

Authors

  • Abdul Aziz Department of Computer Science, Iqra National University, Peshawar 25000, Pakistan.
  • Mansoor Qadir Department of Computer Science, CECOS University of IT & Emerging Sciences, Peshawar 25000, Pakistan.
  • Shah Raiz Zeb Department of Computer Science, CECOS University of IT & Emerging Sciences, Peshawar 25000, Pakistan.

Keywords:

Session Initiation Protocol, Common Alerting Protocol, Authentication Hijacking, Intrusion Detection, IoT Security

Abstract

This paper describes CAP-SIP-Guard, a time-sensitive lightweight SIP-based alerting system for the edge IoT network. The framework encapsulates Common Alerting Protocol (CAP) objects in SIP NOTIFY/PUBLISH messages using Internet Key Exchange version 2 (IKEv2). Micro-certificates provide zero-trust onboarding and end-to-end assurance, in-band methods for authentication hijacking detection. A 20-node Vehicular IoT testbed across Wi-Fi 6E, LTE-Advanced, and 5G NR evaluates SIP processing delay, CAP alert delivery, and detection under REGISTER spoofing, re-INVITE bursts, and nonce replay. CAP-SIP-Guard achieves 46 ms median SIP processing with 10 vehicles and <30 ms edge CAP propagation, 98 % detection with < 2 % false positive. SIP alert latency drops 31 % and authenticated throughput improves 2.4× relative to TLS-SIP and DTLS-CoAP baselines. These results indicate CAP-enhanced SIP with adaptive prediction provide a secure, real-time control plane for heterogeneous, latency-sensitive IoT.

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Published

2026-04-30

Issue

Vol. 7 No. 1 (2026): The Sciencetech, Jan-Mar 2026

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.