graphical password authentication seminar report in pdf
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hi im hema
i need graphical password authentication technical seminar report
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#2

A graphic password is an authentication system that works by having the user select between images in a specific order presented in a graphical user interface (GUI). For this reason the graphical password approach is sometimes called graphical user authentication (GUA).
A graphic password is easier than a text-based password for most people to remember. Suppose that an 8-character password is necessary to enter a particular computer network. Instead of w8KiJ72c, for example, a user can select images of the Earth (between a screen full of real and fictitious planets), the country of France (from a map of the world), the city of Nice (from a map of France) ), a white stucco house with arched doors and red tiles on the ceiling, a green plastic cooler with a white lid, a packet of Gouda cheese, a bottle of grape juice and a pink paper cup with small green stars around it from its upper edge and three red bands around the middle.

Graphic passwords can offer better security than text-based passwords because many people, in an attempt to memorize text-based passwords, use simple words (instead of the recommended character mix). A dictionary search can often come up with a password and allow a hacker to enter a system in seconds. But if a series of selectable images are used on successive screen pages, and if there are many images on each page, a hacker must try all possible combinations at random. If there are 100 images on each of the 8 pages in a password of 8 images, there are 1008, or 10 quadrillions (10,000,000,000,000,000), possible combinations that could form the graphic password! If the system has a built-in delay of only 0.1 second after the selection of each image until the presentation of the next page, it would take (on average) millions of years to enter the system by hitting it with sequences of random images.
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