Author Type

Graduate Student

Date of Award

2007

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Neelakanta, Perambur S.

Abstract

This thesis addresses a passive, economical strategy towards enhancing the security feature of conventional plastic cards by embedding a set of electromagnetic (EM) material that emulates an invisible "watermarking". It is an overlay strategy to prevailing security measures. Proposed method consists of incorporating (embedding) a set of metallic (foil-like) sheet of high-mu material or high-conductivity metal, or a conducting-fiber interwoven fabric. The test card when exposed to a suitable excitation of high frequency EM excitation (with or without superimposing a static magnetic field), the plastic part yields a distinct path-reluctance to the EM energy when compared to the embedded EM material section. Sensing the resulting EM reaction with an appropriate circuit, delivers an output signal depicting the presence of the embedded "watermarking" and any encoded signature in it. The underlying concept is theoretically analyzed, relevant card-reading methods are suggested and prototype (experimental) results are presented.

Extent

111 p.

Comments

College of Engineering and Computer Science|Thesis (M.S.)--Florida Atlantic University, 2007.|FAU Electronic Theses and Dissertations Collection|College of Engineering and Computer Science

Identifier

FA00012534

Format

pdf

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