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

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

doi:10.1117/12.2179635

5 May 2015 Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications

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

Author Affiliations +

Proceedings Volume 9506, Optical Sensors 2015; 95060I (2015) https://doi.org/10.1117/12.2179635
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

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.

Citation Download Citation

Sajan Ambadiyil, Jayan K. G, Radhakrishna Prabhu, and V. P. Mahadevan Pillai "Microstructure encryption and decryption techniques in optical variable and invariable devices in printed documents for security and forensic applications", Proc. SPIE 9506, Optical Sensors 2015, 95060I (5 May 2015); https://doi.org/10.1117/12.2179635

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