Knowledge Based Dynamic Password

Login section is one of the most important parts of each system. This section is usually achieved through a username-password entering method. Since in these methods, user's security relays on how strong the password is, accordingly it is important how the password is provided. There are lots of different approaches in this regard which can be categorized in two main subgroups: Static and Dynamic passwords. Dynamic passwords are taking the lead in password generation context, since static password approaches suffer from some disadvantages like their vulnerability to easily get cracked, high possibility of oblivion and etc. In this paper, we introduce a novel dynamic password providing idea, based on user's knowledge on depicted pictures. In this approach we authenticate the user, based on his/her selected points on a picture. We implemented the mentioned idea and measured users' satisfaction as well. We proved that with this novel idea we are capable to reduce both cracking and forgetting possibilities and rectify some other flaws of other approaches.