A hash is a number generated from the information inside a file, maybe a clear text file. The resulting string is a fixed length, and will vary widely with small variations in input. Hashing differs from encryption and does not use a process to encrypt and decrypt data. Hashing, however, is a one-way function that scrambles plain text to produce a unique message digest. With a properly designed algorithm, it works in a one-way direction, hence there is no way to reverse the hashing process to reveal the original password:
Let's understand the working.
A user enters a password and a User ID in a browser and sends it to the authentication ...
