- 學位論文
基於分佈式帳本技術的相互認證及其應用
Mutual Authentication and Its Application Based on Distributed Ledger Technology
摘要
由於設備的移動性，設備到設備（D2D）通訊在動態環境中，用於提高第五代行動通訊技術（5G）的組通訊消息傳輸效率。 此外，當前的車輛自組織網絡 (VANET) 提供無線連接並部署各種應用服務。 因此，D2D 通訊已被引入自組織環境中，以減少車輛對話期間的延遲，例如用於蜂巢式車聯網 (C-V2X) 模塊和無人機互聯網 (IoD) 網路的自動駕駛車輛解決方案和無人機車隊管理。 然而，提供安全有效的群組通訊是一項緊迫的挑戰。 此外，許多公司現在正在轉向使用權威證明（PoA）共識算法，該算法具有高吞吐量和安全性，是工作量證明（PoW）算法中具吸引力的替代方案。 不幸的是，採用 PoA 協議很容易受到克隆攻擊。 領導節點的選擇是可預測的並且容易被攻擊。 為了解決這些問題，我們提出了一種基於分佈式帳本技術的動態群組管理解決方案。 這項研究表明，用於動態組管理的基於分佈式帳本的分層架構更快、更具適應性，而不會影響安全性和性能。 除此之外，所提出的方法可以在沒有集中式資料庫的情況下促進直接通訊資料的傳輸，從而減少單點故障的機會。此外，為了緩解 PoA 協議中的領導者瓶頸，本研究提出了一種基於 PoA 的安全動態分佈式共識機制，以緩解領導者選擇瓶頸和驗證者的單點故障，同時保持所需的安全水平和表現。 除此之外，該研究還包括對攻擊、安全性、偽隨機性和可用性的綜合分析。
並列摘要
Due to the mobility of devices, device-to-device (D2D) communication is a promising fifth-generation (5G) technology in dynamic environments for improving message transmission efficiency for group communication. Additionally, all services in an ad hoc network are current Vehicle Ad Hoc Network (VANET) applications. Therefore, D2D communication has been introduced in ad hoc environments to reduce latency during vehicle conversations, such as autonomous vehicle solutions and drone fleet management for cellular vehicle-to-everything (C-V2X) modules and Internet of Drones (IoDs) networks. However, providing secure and effective group communication is an urgent challenge. In addition, many companies are now turning to the Proof of Authority (PoA) consensus algorithm, which has high throughput and security and is an attractive alternative to the Proof of Work (PoW) algorithm. Unfortunately, adoption of the PoA protocol is vulnerable to cloning attacks. The selection of the leader node is predictable and easy to attack. To solve these problems, we propose a dynamic group management solution based on distributed ledger technology. This study demonstrates that a distributed ledger-based hierarchical architecture for dynamic group management is faster and more adaptable without compromising security and performance. Furthermore, the proposed method can facilitate the transfer of direct communication data without a centralized database, thereby reducing the chance of a single point of failure. Besides, in order to alleviate the leader bottleneck in the PoA protocol, this work proposes a secure dynamic distributed consensus mechanism based on PoA to alleviate the leader selection bottleneck and the single point of failure of the validator, while upholding the desired levels of security and performance. In addition, the study also includes comprehensive analyses of attacks, security, pseudo-randomness, and availability.