Patent ID: 7894600
Filing Date: 2011-02-22
Classification: G06F,G06K,H04L

Abstract:
1. An encryption device for encrypting information on a unique confidential target, comprising: an imaging unit including a movable diffusion plate and configured to perform imaging by emitting light on a target and to output analog first and second signals, the first signal including image data of an inside portion of the unique confidential target, the second signal including image data of a solid imaging element located inside the imaging unit to create variation patterns unique to the imaging unit, and the diffusion plate being movable into and out of a path of light emitted based on the signal being output by the imaging unit; an identification unit configured to perform analog/digital conversion on the first signal having the image data of the inside portion of the unique confidential target to create identification information; a creation unit configured to perform analog/digital conversion on the second signal having the variation patterns unique to the imaging unit by performing an algorithm on the second signal to create encryption key information; and an encryption unit configured to encrypt the identification information by using the encryption key information.