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Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications.

Ambadiyil, Sajan; Jayan, K.G.; Prabhu, Radhaskishna; Pillai, V.P. Mahadevan

Authors

Sajan Ambadiyil

K.G. Jayan

Radhaskishna Prabhu

V.P. Mahadevan Pillai



Contributors

Francesco Baldini
Editor

Jiri Homola
Editor

Robert A. Lieberman
Editor

Abstract

Today, document counterfeiting is a global menace because of the advanced technologies available at ever decreasing prices. Instead of eschew the paper documents; applying efficient cost effective security methodologies are the feasible solutions. This paper reports a novel cost effective and simple optical technique using micro text encrypted optical variable device (OVD) threads, ultra-violet (UV) based optical invariable device (OID) patterns and artistic fonts for secure preparation of the documents and its forensic application. Applying any one of the above technique or together can effectively enhance the level of security of the most valuable document. The genuineness of the documents can be verified using simple decryption techniques.

Start Date Apr 13, 2015
Publication Date May 5, 2015
Print ISSN 0277-786X
Electronic ISSN 1996-756X
Publisher Society of Photo-optical Instrumentation Engineers
Article Number 9506OI
Series Title Proceedings of SPIE
Series Number 9506
Series ISSN 1996-756X
Institution Citation AMBADIYIL, S., JAYAN, K.G., PRABHU, R. and PILLAI, V.P.M. 2015. Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications. In Baldini, F., Homola, J and Lieberman, R.A. (eds.) Optical sensors 2015: proceedings of 2015 International Society for Optics and Photonics (SPIE) optics and optoelectronics conference, 13-16 April 2015, Prague, Czech Republic. Proceedings of SPIE, 9506. Bellingham, WA: SPIE [online], 9506OI. Available from: https://doi.org/10.1117/12.2179635
DOI https://doi.org/10.1117/12.2179635
Keywords Anticounterfeiting; Security printing; Forensic applications

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