Today, technology increased very fast and with newly developed innovation, competition, performances, maintains, security, privacy also increased. Security and privacy are playing vital role in any online application. To access or share any Information other user required password. Therefore, to maintained password security and privacy, user used different types of authentication technique one of them is textual password.
The shoulder surfing attack is an attack that can be performed by the adversary to obtain the user’s password by watching over the user’s shoulder as he enters his password. Since then, many graphical password schemes with different degrees of resistance to shoulder surfing have been proposed and each has its pros and cons. The alphabet used in the proposes scheme contains 16 characters to generate a secure password, including 6 lower case alphabets from a to f & 10 numerical from 0-9. System provides On-Screen keyboard to select the alphabet and numericals to generate a password. A matrix of 3×3 will be displayed to the user, where he/she needs to select any four positions from the matrix.