一种基于熵率和标准差混合指标的云平台隐蔽信道检测方法

摘要

Cloud computing is the focus at present in the field of information technology , and the cloud platform covert channel is a new safety problem caused by the infrastructure of cloud computing platform .The covert channel in cloud platform will leak the confidential information of cloud customers , seriously damages the safety of cloud platform .We summarise the correlative works of the covert channel detection, aiming at the cloud platform covert channel based on CPU response time , we abstract its model, and put forward at the first time a detection method with hybrid indicators of the integration of entropy and standard deviation .Experimental results show that this detection method can reach a false positive rate less than 5%, therefore has good detection performance .%云计算是目前信息技术领域研究的热点，而云平台隐蔽信道是由云计算平台的基础架构导致的新的安全问题。云平台隐蔽信道会泄漏云客户的机密信息，严重危害云平台安全。总结隐蔽信道检测的相关工作，并针对基于CPU响应时间的云平台隐蔽信道，抽象云平台隐蔽信道模型，首次提出融合熵率和标准差混合指标的检测方法。实验结果表明使用该检测方法能够达到低于5％的误报率，具有很好的检测性能。