Application of MD5 algorithm based on J2EE in user management system

MD5 is one of the most widely used hash function in the field of cryptography nowadays.By virtue of studying the theory and realization of user management system in J2EE architecture and B/S model,the user management system's architecture in MVC model is stated,the process of verification by password based on MD5 algorithm and the design of MD5 algorithm in Java.During the process of verification,the creation of graphic authentication codes by Servlet technique is described.In the end,it probes into the mechanism and strategy of security identity in web applications based on MD5 algorithm.