| 摘要 |
A secure system using a continuously-changing key that depends on the user's body part. A system obtains an image of the user's fingerprint (105) and cements it according to a random generator (104). Only part of the image and not the entire image is sent at one time. The random segmentation insures th at part of the image that is sent continuously varies from time to time. Therefore, an unauthorized receiver can receive only part but not the entire image. The fingerprint image part is verified by a remote agent (120).</SDOA B>
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