In a tradition of excellence |
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Authors: | R M Sillitto |
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Institution: | 1. Blackett Physics Laboratory , Imperial College London , London, UK r.cowburn@imperial.ac.uk |
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Abstract: | A laser-based security technique called Laser Surface Authentication (LSA) is described in which diffuse laser scattering is used as a probe of the naturally-occurring randomness present in virtually all surfaces. LSA brings the principles of biometric identification currently used in human fingerprint- or iris-recognition to the world of inanimate objects such as paper documents, plastic cards, high value branded products and a range of other things that are commonly counterfeited or smuggled. |
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Keywords: | laser surface authentication security coding |
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