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This page contains all of the posts and discussion on MemeStreams referencing the following web page: Cheap trick secures secrets. You can find discussions on MemeStreams as you surf the web, even if you aren't a MemeStreams member, using the Threads Bookmarklet.

Cheap trick secures secrets
by Decius at 4:04 pm EDT, Sep 20, 2002

"The glass spheres scatter laser light so that it falls in a speckle pattern on a surface on the far side that is divided into a grid of pixels. The intensity of light in each pixel is the fingerprint that is compared against a pre-recorded version to verify the token. "


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