App. Res. of Comp. Accepted Paper
Vol. 43, 2026 No. 11

Physical-state-aware domain-partitioned byzantine authentication mechanism for leo satellite networks

Fei Xiaomou
Xia Qi
Xia Hu
Gao Jianbin
School of Computer Science & Engineering (School of Cyber Security), University of Electronic Science & Technology of China, Chengdu 611731, China
DOI: 10.19734/j.issn.1001-3695.2026.04.0089

Abstract

A two-phase domain-partitioned Byzantine authentication mechanism based on physical-state awareness (PA-PBFT) addresses the sharp increase in communication complexity caused by the rapid expansion of Low Earth Orbit (LEO) mega-constellations, and the low authentication efficiency resulting from highly dynamic topology and harsh space environment. PA-PBFT partitions the Walker Delta constellation into time-slot-bounded Identity Management Domains (IMDs) with a domain-partitioned voting protocol to reduce communication overhead, and constructs a Computation-Communication-Behavior coupled dynamic reputation model with an Environmental Survival Factor as a pre-gating mechanism to proactively revoke Domain Representative Node (DRN) authority before nodes enter high-risk areas. A cascaded DRN election strategy with reputation-based admission, bandwidth-based tiebreaking, and hysteresis decision logic ensures election safety and stability. Experimental results from a Docker-based simulation platform show that, at 800 nodes, PA-PBFT reduces communication overhead by ∼98.5% and authentication latency by ∼94.2% versus traditional PBFT. Under South Atlantic Anomaly (SAA) threat scenarios, PA-PBFT maintains an authentication accuracy above 0.85 at a Byzantine node ratio of 0.2, outperforming HPBFT by ∼15 percentage points. These results demonstrate the effectiveness of physical-state awareness in enhancing both security and scalability of distributed authentication in satellite networks.

Foundation Support

国家自然科学基金资助项目(U22B2029)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2026.04.0089
Publish at: Application Research of Computers Accepted Paper, Vol. 43, 2026 No. 11

Publish History

[2026-07-17] Accepted Paper

Cite This Article

费骁谋, 夏琦, 夏虎, 等. 面向低轨卫星网络的物理状态感知分域拜占庭认证机制 [J]. 计算机应用研究, 2026, 43 (11). (2026-07-31). https://doi.org/10.19734/j.issn.1001-3695.2026.04.0089. (Fei Xiaomou, Xia Qi, Xia Hu, et al. Physical-state-aware domain-partitioned byzantine authentication mechanism for leo satellite networks [J]. Application Research of Computers, 2026, 43 (11). (2026-07-31). https://doi.org/10.19734/j.issn.1001-3695.2026.04.0089. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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