Owing to the widespread use of the internet, software services are being provided to millions of consumers and the importance of software security has increased considerably. Specifically, difficulties in developing a security design based on the results of a security requirements analysis are a focal point for investigation. One promising approach for addressing these difficulties is to create a knowledge base for secure software development and a process for utilizing it. The information obtained regarding the security design of the knowledge base, which is associated with the knowledge used in the security requirements analysis, can be considered during the design phase. This paper describes the development of a system that seamlessly supports the design phase based on the results of a security requirements analysis and the knowledge base. We then present an example to demonstrate the usefulness of the proposed system. This knowledge base maintains an association between knowledge types and is traceable. Therefore, if the knowledge used to create a type of artifact evolves, it is possible to detect artifacts used knowledge associated with it.