Cloud computing is an important part of the new generation of information technology industry. It is the third information technology wave after personal computer and Internet. Although people from all walks of life agree that cloud computing has a huge growth space, it still faces many problems in promotion, such as low user recognition, insufficient operation experience and imperfect industrial chain. Among all the disadvantages, the security of cloud computing has been ranked the first, and cloud security has gradually become the bottleneck restricting the development of cloud computing. In the cloud computing application scenarios, cloud computing is faced with not only general security problems, but also security risks brought by its inherent characteristics due to its super-large scale, high dynamics, high openness and other characteristics. In general, it includes security problems caused by service mode, security problems caused by virtualization technology, security problems of cloud-related management software, etc. And program slicing technology can assist security testers to analyze cloud computing software. Therefore, a software security analysis model of cloud computing based on program slicing technology is proposed. It is used to discover the key information leakage vulnerabilities and the spread of such vulnerabilities in cloud computing software, so as to improve the protection of key information.
