A Covert Channel Bases on CPU Load in Cloud Computing

Abstract

With the development and application of Cloud Computing, all kinds of products become available for public, but opportunity always along with challenge. Cloud security has become the key problem of restricting the development of cloud computing while we benefit from cloud computing. Virtualization technology is the foundation of cloud computing, its security mainly is cloud security. Covert channel is about information hiding which emphasis on the secret of communication. A malicious user on one virtual machine usually cannot relay secret data to other virtual machines without using explicit communication media due to shared resource between virtual machines. The paper has a deep research of covert channel in cloud computing environment. The channel is working well though experimental tests. © Springer-Verlag Berlin Heidelberg 2014.