Create MD5 Files in Windows

How to Create MD5 Files in Windows

This HOWTO will explain how to  Create and Test MD5 Files in windows

1.Download the md5.exe utility from http://www.etree.org/md5com.html

2.Place this utility in the C:\windows\system32 Folder

3. Now to Test Create any file in my case i will create hyp3ri0n.txt

4. Now lets Create an md5 file for hyp3ri0n.txt to make it tamper proof (Follow below steps)

a. C:\> copy con hyp3ri0n.txt <–Enter [This will create a test file hyp3ri0n.txt]

This is a test file to check md5 checksum

Ctrl+z

b. C:\> md5sum *.txt > hyp3ri0n.txt.md5 [This will create file with md5]

c. C:\> md5sum -c hyp3ri0n.txt.md5 [This command will confirm the validity of the file]
hyp3ri0n.txt:OK

If we tamper the file and check with this utility it will show the following error

d. C:\> md5sum -c hyp3ri0n.txt.md5 [If the file is tampered]
hyp3ri0n.txt: FAILED
md5sum: WARNING: 1 of 1 computed checksum did NOT match

By this we can be sure regarding the validity of the file or program

Thanks,

Salman Aftab