KPSecurityAPI is a java based library provides three features : Password Generation, OTP Generation and Captcha Generation. The Module Password Generation is used to generate random password combination of upper case letters, lower case letters, digits and special symbols Similarly using the same module we can generate one time password (digital password) of any length.Captcha is used to validate whether the user is human or any robotic program.Captcha Generation is used to generate captcha in text as well as in image format.