目前無人機在實務導入上仍面臨採購成本高、維護管理負擔重及設備閒置率高等問題，使得自購自管模式對部分使用者與中小型組織而言缺乏經濟效益。相較之下，共享無人機模式透過以租代買，可有效降低使用門檻並提升設備利用率。但目前仍有租用紀錄可追溯性不足、飛行日誌安全管理困難、控制權歸屬不明及違規介入機制不足等問題。因此本研究提出一套基於區塊鏈可追溯性與EdDSA無憑證簽密之安全共享無人機租賃框架，並導入信譽獎勵機制來提升經濟誘因。根據實驗結果顯示，我們所提的密碼學方案在資源受限的無人機設備上具有高效率的效能。相較於其他方案平均值，我們在加解密階段約降低 90.67% 計算時間，簽章與驗證階段則約降低 80.79%的計算時間。另一方面，我們所提出的密碼學方案除了具備IND-CPA及EUF-CMA安全性之外，也同時具備中間人攻擊抗性與重送攻擊抗性。此外，我們免除了非對稱式加密中常見的密鑰託管問題，確保在權威中心被駭入時，使用者的私鑰不會洩漏。本研究可為共享無人機租賃環境提供一套兼具安全性、可追溯性、輕量化與具備經濟誘因之整合式架構，作為未來無人機租賃平台在可信管理與安全控制上的設計基礎。;The practical deployment of unmanned aerial vehicles (UAVs) still faces challenges such as high procurement costs， heavy maintenance burdens， and low equipment utilization， making the ownership model economically inefficient for many users and small organizations. In contrast， the shared UAV model reduces the cost of adoption and improves equipment utilization through rental services. However， existing shared UAV rental systems still suffer from insufficient rental traceability， insecure flight log management， unclear control ownership， and inadequate intervention mechanisms for unauthorized operations.
To address these issues， this study proposes a secure shared UAV rental framework based on blockchain traceability and EdDSA certificateless signcryption， together with a reputation-based incentive mechanism to enhance users′ economic incentives. Experimental results show that the proposed cryptographic scheme is highly efficient on resource-constrained UAV devices. Compared with the average performance of existing schemes， it reduces the computation time of encryption/decryption by 90.67% and signing/verification by 80.79%.
Moreover， the proposed scheme satisfies IND-CPA and EUF-CMA security while providing resistance against man-in-the-middle and replay attacks. It also eliminates the key escrow problem， ensuring that users′ private keys remain protected even if the trusted authority is compromised. The proposed framework provides an integrated solution that achieves security， traceability， lightweight computation， and economic incentives for shared UAV rental platforms.
