User Authentication via Behavior Based Passwords

Computer security to a degree depends on trustworthy user authentication; unfortunately currently used passwords are not completely secure or user friendly. One of the main problems with passwords is that good passwords are hard to remember and the ones which are easy to remember are too short to be secure. We have designed a graphical authentication schema with a password, which is easy to remember and can be relatively quickly provided to the system, while at the same time remaining impossible to break with brute force alone. We have also proposed a way to measure password length and compared password space sizes of many popular authentication schemas against the one proposed in this paper.