New-Type Graphical Passwords Made by Chinese Characters with Their Topological Structures

摘要

In today world fulling by various networks, information processing technology is also promoting the research and development of various languages. Graphical passwords (GPWs) are new-type of passwords as an alternative as alphanumeric passwords. It requires that GPWs are suitable for various level safeties, and are not guessed by attackers. New G PW s, called Topsnut-GPWs, have many advantages in current GPWs. We try to make Chinese characters to become GPWs by designing Chinese character graphs (Hanzi-graphs). We provide several methods for producing new Topsnut-GPWs by Hanzi-graphs.