Passwords are an integral part of today’s authentication based web applications. In fact, Passwords have been used since ancient times. Sentries would challenge those wishing to enter an area to supply a password or watchword, and would only allow a person or group to pass if they knew the password. In modern web application passwords are used in combination with usernames to authenticate users. So, basically, we’d need to fields in order to store username and password for each user both of which are supplied by user at the time of signing up to the web application.