What is MD5?
MD5 is a widely used hash algorithm often used to verify data integrity of a file that has been downloaded from the internet. This hash is either used to verify that the file has been downloaded correctly or if the file is the original non-manipulated one, in case the file is downloaded through a 3rd party host. Use-cases are similar to cases where CRCs are used, but MD5 provides higher security here. For more information about how MD5 works in general, please refer to here.