Secure and Trustful Cross-domain Communication with Decentralized Identifiers in 5G and Beyond

• URL: http://arxiv.org/abs/2509.05797v1
• Date: Sat, 06 Sep 2025 18:20:01 GMT
• Title: Secure and Trustful Cross-domain Communication with Decentralized Identifiers in 5G and Beyond
• Abstract summary: This paper proposes the application of W3C-endorsed Decentralized Identifiers (DIDs) to establish secure and trustful communication channels.<n>A new communication agent is introduced that integrates seamlessly with 5G-standardized network functions.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In the evolving landscape of future mobile networks, there is a critical need for secure and trustful communication modalities to support dynamic interactions among core network components of different network domains. This paper proposes the application of W3C-endorsed Decentralized Identifiers (DIDs) to establish secure and trustful communication channels among network functions in 5G and subsequent generations. A new communication agent is introduced that integrates seamlessly with 5G-standardized network functions and utilizes a DID-based application layer transport protocol to ensure confidentiality, integrity, and authenticity for cross-domain interactions. A comparative analysis of the two different versions of the DID-based communication protocol for inter network function communication reveals compatibility advantages of the latest protocol iteration. Furthermore, a comprehensive evaluation of the communication overhead caused by both protocol iterations compared to traditional TCP/TLS shows the benefits of using DIDs to improve communication security, albeit with performance loses compared to TCP/TLS. These results uncover the potential of DID-based communication for future mobile networks but also point out areas for optimization.

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