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姓名	葉文(Wen Yeh)  查詢紙本館藏	畢業系所	資訊工程學系
論文名稱	TrustCS: 基於 Trusted Firmware-M 的安全 CubeSat 韌體更新機制 (TrustCS: A firmware update mechanism of secure CubeSat based on Trusted Firmware-M)
相關論文	★ 基於OP-TEE的可信應用程式軟體生態系統 ★ 在低軌道衛星無線通訊中的CSI預測方法 ★ 為多流量低軌道衛星系統提出的動態換手策略 ★ 基於Trustzone的智慧型設備語音隱私保護系統 ★ 一種減輕LEO衛星網路干擾的方案 ★ TruzGPS:基於TrustZone的位置隱私權保護系統 ★ 衛星地面整合網路之隨機接入前導訊號設計與偵測 ★ SatPolicy: 基於Trustzone的衛星政策執行系統 ★ TruzMalloc: 基於TrustZone 的隱私資料保 護系統 ★ 衛星地面網路中基於物理層安全的CSI保護方法 ★ 低軌道衛星地面整合網路之安全非正交多重存取傳輸 ★ 低軌道衛星地面網路中的DRX機制設計 ★ 衛星地面整合網路之基於集合系統的前導訊號設計 ★ 基於省電的低軌衛星網路路由演算法 ★ 衛星上可重組化計算之安全FPGA動態部分可重組架構 ★ 衛星網路之基於空間多樣性的前導訊號設計
檔案	[Endnote RIS 格式]    [Bibtex 格式]    [相關文章]   [文章引用]   [完整記錄]   [館藏目錄]   至系統瀏覽論文 ( 永不開放)
摘要(中)	近年來，立方體衛星的開發越來越受到商業和教育機構的青睞。 然而，現有的衛星安全大多側重於如何保護物理通信，很少討論如 何保護衛星系統本身的安全。為了增強立方體衛星系統的安全性， 我們提出了TrustCS（Trusted CubeSat），它基於立方體衛星On-Board Computer（OBC）系統中的TrustedFirmware-M（TF-M）可信執行環境。 與通過地面站發送遠程命令來重啟系統和驗證圖像不同，TrustCS能使 立方體衛星系統自動重啟並自動驗證圖像。我們還在SecureProcessing Environment（SPE）中對內部存儲記憶元件的寫入和擦除功能實施了 區域檢查機制，使其不會被惡意程序不當操作和使用。此外，我們還 為立方體衛星選擇了更新映像的方法，該方法在更新映像的同時確保 了系統的穩定性，如果更新過程因斷電或高能粒子穿透而失敗，仍可 恢復。最後，我們評估了在STM32L5開發板上的實現情況，證明了 其可靠性、低開銷和安全性。
摘要(英)	In recent years, the development of CubeSats has become more and more popular among commercial and educational institutions. However, most of the existing satellite security focuses on how to protect the physical com munication, and rarely discusses how to protect the security of the satellite system itself. In order to enhance the security of the system on CubeSats, we propose TrustCS (Trusted CubeSat), which is based on the Trusted Execu tion Environment of Trusted Firmware-M (TF-M)intheOn-BoardComputer (OBC) system of the CubeSat. Unlike sending remote commands through the ground station to restart the system and image verification, TrustCS en ables the CubeSat system to automatically restart and automatically verify images. We also implement a region check mechanism in the Secure Pro cessing Environment (SPE) for the write and erase functions of the internal storage memorycomponents, sothattheywillnotbeimproperlyoperatedand used by malicious programs. In addition, we choose the method for updating the image for CubeSat, which ensures the system stability while updating the image, and can still recover if the update process fails due to power outage or high-energy particle penetration. Finally, we evaluate the implementation on the STM32L5developmentboard, demonstratingits reliability, low overhead and security.
關鍵字(中)	★ 韌體更新 ★ 平台安全架構 ★ TrustedFirmware-M ★ 可信執行 環境 ★ ARMTrustZone-M	關鍵字(英)	★ FirmwareUpdate ★ PSA ★ ARMTrustedFirmware-M ★ Trusted Execution Environment ★ ARM TrustZone-M
論文目次	中文摘要 i Abstract ii 致謝 iii Contents iv ListofFigures vii ListofTables ix 1 Introduction 1 2 Background 7 2.1 TrustedExecutionEnvironment 7 2.2 ARMTrustZone 7 2.2.1 TrustZone-A 8 2.2.2 TrustZone-M 8 2.2.3 TrustedFirmware-MFirmwareUpdate 10 3 RelatedWorks 12 3.1 TEEfirmwareupdatemechanism 12 3.2 Thefirmwareupdatemechanismforremoterecovery 14 4 SystemModel 17 4.1 CubeSatOBCFirmwareUpdateSystem 17 4.2 ThreatModel 18 4.2.1 Softwareandfirmwaredesigndefects 19 4.2.2 Malwaresattacker 19 5 FirmwareUpdateDesign 20 5.1 SystemArchitecture 20 5.2 FlashlayoutandSecureBoot 22 5.2.1 Flashlayout 22 5.2.2 MCUBoot 25 5.3 Non-secureProcessingEnvironment 27 5.3.1 ReceivecommandTask&FirmwareupdateTaskdesign 27 5.3.2 FlashDriverOperation 28 5.4 Securememory 30 5.4.1 non-securecallablecommunication 30 5.4.2 Secureservices 31 5.5 TrustCSDataandControlFlow 31 6 FirmwareUpdateImplementation 34 6.1 Flashlayout 34 6.2 ReceiveTask 36 6.3 FirmwareupdateTask 38 6.4 Modifyflashoperation 38 6.4.1 EraseStep 39 6.4.2 WriteStep 39 6.5 CreateaNewSecureServiceconnection 40 6.6 FlashareaVerificationAPI 41 7 Evaluation 44 7.1 SecurityAnalysis 44 7.1.1 Firmwareupdatewithsecurearchitecture 44 7.1.2 ImageAuthentication 44 7.1.3 VulnerableDeviceDrivers 45 7.1.4 TrustedComputingBase 45 7.2 PerformanceEvaluation 46 7.2.1 Filesizecomparison 46 7.2.2 Erasingexecutiontimecomparison 47 7.2.3 Writingexecutiontimecomparison 48 7.2.4 ExecutionTimeofUpdate 48 8 Conclusion 50 Bibliography 51
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指導教授	張貴雲(Guey-Yun Chang)	審核日期	2023-8-7
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