Current image libraries include playing cards, musical notes and fruits. Users are asked to select a combination of images and numbers to form their 'passphrase'. The images are actually divided into sixteen parts, invisible to users and are translated to numeric sequences. With the proliferation of check points or security verifications serving as regulation and protection from unwanted intrusion, the need for better systems has become more urgent. GateScene will be available on the market in September 1999.
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