The design of file integrity checking system based on MD5
Bo Hu · Journal of Hunan Institute of Science and Technology · 2007
Firewall is usually used to protect network against attacks,but it is not powerful enough to protect intranet.A file integrity checking system was proposed which based on MD5,it can make up the shortage of firewall.The same message digest can be got from checking the same file in different times if file was not changed.So the system can find attacks by the difference of the digest of the sensitive files.