An Extensible Secure OS Architecture for Embedded Systems

• Item type: JInfP(1)
• 公開日: 2013-10-15
• タイトル: An Extensible Secure OS Architecture for Embedded Systems
• タイトル / 言語: en
• タイトル: An Extensible Secure OS Architecture for Embedded Systems
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: [Special Issue on Computer Security Technology for Enriching the Future] secure architecture, embedded systems, multi-core
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Department of Computer Science and Engineering, Waseda University
• 著者所属: Department of Computer Science and Engineering, Waseda University
• 著者所属: Department of Computer Science and Engineering, Waseda University
• 著者所属: Department of Computer Science and Engineering, Waseda University
• 著者所属(英): en
• 著者所属(英): Department of Computer Science and Engineering, Waseda University
• 著者所属(英): en
• 著者所属(英): Department of Computer Science and Engineering, Waseda University
• 著者所属(英): en
• 著者所属(英): Department of Computer Science and Engineering, Waseda University
• 著者所属(英): en
• 著者所属(英): Department of Computer Science and Engineering, Waseda University
• 著者名: Ning, Li; Yuki, Kinebuchi; Hiromasa, Shimada; Tatsuo, Nakajima
• 著者名(英): Ning, Li; Yuki, Kinebuchi; Hiromasa, Shimada; Tatsuo, Nakajima
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Some recent researches have shown that using a monitoring service outside the target system above hypervisors is an efficient way to protect the target system. The hypervisors isolate the monitoring service based on MMU-methods to improve security. However, The MMU-method may cause heavy overhead when there is no hardware support, which makes this method not viable for embedded processors that are rarely equipped with hardware virtualization extensions. In addition, the vulnerabilities that exist in hypervisors may compromise the isolation. In this paper, we propose a secure OS architecture that fits embedded systems without the dependency of a hypervisor. It provides a robust isolation between the monitoring service and the guest OS based on local memory, a hardware feature. In order to generalize this architecture, we adopt a secure pager to extend the local memory space (physically small) virtually by a swap mechanism with integrity checking of the monitoring service. The secure pager can also update the monitoring service to extend monitoring functions without disturbing the running of the guest OS. Comprehensive evaluations are made in our framework with one instance of embedded Linux as the guest OS and an isolated monitoring service running with the secure pager. The results demonstrate functions of the secure pager and influence of the secure pager on Linux in our system. On processors with a proper architecture, we can build an extensible secure OS architecture with reasonable resource consumption, without the issue of heavy overhead to the guest OS.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Some recent researches have shown that using a monitoring service outside the target system above hypervisors is an efficient way to protect the target system. The hypervisors isolate the monitoring service based on MMU-methods to improve security. However, The MMU-method may cause heavy overhead when there is no hardware support, which makes this method not viable for embedded processors that are rarely equipped with hardware virtualization extensions. In addition, the vulnerabilities that exist in hypervisors may compromise the isolation. In this paper, we propose a secure OS architecture that fits embedded systems without the dependency of a hypervisor. It provides a robust isolation between the monitoring service and the guest OS based on local memory, a hardware feature. In order to generalize this architecture, we adopt a secure pager to extend the local memory space (physically small) virtually by a swap mechanism with integrity checking of the monitoring service. The secure pager can also update the monitoring service to extend monitoring functions without disturbing the running of the guest OS. Comprehensive evaluations are made in our framework with one instance of embedded Linux as the guest OS and an isolated monitoring service running with the secure pager. The results demonstrate functions of the secure pager and influence of the secure pager on Linux in our system. On processors with a proper architecture, we can build an extensible secure OS architecture with reasonable resource consumption, without the issue of heavy overhead to the guest OS.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA00700121
• 書誌情報: Journal of information processing; 巻 21, 号 4, p. 650-659, 発行日 2013-10-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-6652
• 出版者 / 言語: ja
• 出版者: 情報処理学会