Two factor image-based password authentication for junior high school students

Internet is popular for people at all ages. A computer is used to access the Internet but a user needs to authenticate himself to the system in order to gain access. The problem of a typical authentication technique is to memorize a password. Lots of junior high school students in Pakthongchaiprachaniramit School cannot remember their own password and this work is proposed to solve the problem by using an image-based password technique instead. However, a normal image-based password can be easily hacked using a shoulder surfing attack. This work proposed the two factor image-based password technique using image and random questions. However, when the percentage of successful log-in was compared, this work outperformed the alphanumeric-based password. When the third log-in (15 days after registration) was conducted, the percentage of successful log-in of our proposed work was 95% comparing to 58.33% of alphanumeric-based password. In addition, the proposed technique was able to prevent from the shoulder surfing attack.