Design and implementation for MD5-based data integrity checking system

With the increase of the amount of data and users in information system, the requirements of data integrity in system need to be improved as well. This article presents a data integrity checking method based on MD5 in order to ensure that the data of information system is in correct state. It also elaborates the principle of MD5 algorithm, researches a way to utilize data integrity checking method on the protection of information system. Finally, the paper designs and implements a data integrity checking system based on MD5 algorithm. Practice has shown that the IT departments of the enterprise achieve the system management and security auditing with the data integrity checking system.