Amar Gautam

Have you ever thought of how dangerous it could be to download any file from the Internet? However, the fear of downloading a virus or a malicious program does not stop us to do so. We need certain things to be downloaded for work or entertainment. 

You may think it sounds absurd in the scenario when you know from which source you are getting your file. But then how to be sure that someone has not injected a piece of code (malicious of course!) in the bit stream while you were in the process of downloading a file. 

This actually happens. Unless you download something over a secured channel (such as someone using SSL), there is no guarantee that your file is not getting corrupt while in the transit. 

But the question at large is how to check if the file you downloaded was the one you intended to download? 

There is something called file checksum. This is a MD5 hash or a SHA1 hash. This is as you may know is one way encryption. This means you can encrypt but not decrypt a file. Now you can always ask the source of a file you intend to download for a MD5 or SHA1 checksum of the file. Once you get the checksum, compare it by calculating the checksum of the downloaded file. 

Now, how to calculate and compare the checksum? So here is the solution. I have developed this cool utility that I thought I should share with you. Click on the link below to download it. I guarantee that the file you download would not have something injected as the download channel on this website is based on SSL protocol. 

To download the file – [download#1]

If you like the utility, please leave a comment here or donate towards the hosting charges.