Abstract:

Cloud computing is a new technology and business model，the infrastructure as a service（IaaS）can provide customers the Internet-based IT infrastructure services，effectively improve the profitability of IDC-related products and increase the customers.However，the ＂Internet-based＂ feature brings ease of use at the same time，the higher security requirements must be considered for the business support platform.According to the characteristics of infrastructure cloud platforms，we propose the security framework and the security countermeasures for the new risks as the introduction of the new technology——cloud computing.

Key words: cloud computing, infrastructure as a service, security policy