charles babbage is the father of computer's
As far as I remember, message-digest functions distill the information contained within a file (small or large) into a single fixed-length<span>number, typically between 128 and 256 bits in length. This function is designed to protect the integrity of a piece of data to define changes to any part of a message.</span>
<span>a. uncheck ���hide protected operating system files��� in folder options</span>
