CAJ | 학술논문

在云计算环境中，为了实现资源共享，不同租户的虚拟机可能运行在同一台物理机器上，即虚拟机同驻，这将带来新的安全问题。为此，文章重点讨论同驻虚拟机所面临的一些新的安全威胁，包括资源干扰、隐蔽通道/侧信道、拒绝服务与虚拟机负载监听等，介绍现有虚拟机同驻探测方法，总结针对虚拟机同驻威胁的四种防御思路，并分析未来的研究趋势。
재운계산배경중，위료실현자원공향，불동조호적허의궤가능운행재동일태물리궤기상，즉허의궤동주，저장대래신적안전문제。위차，문장중점토론동주허의궤소면림적일사신적안전위협，포괄자원간우、은폐통도/측신도、거절복무여허의궤부재감은등，개소현유허의궤동주탐측방법，총결침대허의궤동주위협적사충방어사로，병분석미래적연구추세。
In cloud computing, in order to achieve resource sharing, virtual machines (VMs) of different tenants might be scheduled to run on the same physical machine, namely VMs co-residency, which would bring many new security issues. Therefore, security threats due to VMs co-residency, including resources interference, covert or side channel, denial of service and virtual machine load monitoring were reviewed in this paper. Besides, existing detection methods of co-residency were introduced, four kinds of defense about VMs co-residency were summarized and further trends were also pointed out.