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A graphical password is associate authentication system that works by having the user choose from pictures, in an exceedingly specific order, conferred in an exceedingly graphical interface (GUI). For this reason, the graphical-password approach is termed graphical user authentication (GUA). The most common computer authentication methodology is to use alphabetical usernames and passwords. This method has been shown to have significant disadvantages. For e.g., users tend to choose passwords that can be easily guessed. On the other hand, if a password is difficult to guess, then it is often difficult to remember. To overcome this drawback of low security, Authentication strategies square measure developed by researchers that use pictures as password. |
