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  • Lexmark patents magnetic anti-counterfeit particles

    Posted on Securing Industry

    "Printer giant Lexmark has been awarded a US patent on a means of uncovering counterfeit ink and toner products.

    The Chinese-owned corporation – based in the US – says that counterfeit printer supplies such as toner bottles are a problem for consumers as they may perform poorly and damage printers, noting that printer manufacturers are already using authentication systems to deter the fakers.

    The patent draws on a concept developed by cryptographers known as physical unclonable function (PUF) – pit simply a physical entity - embodied in a physical structure – that is easy to evaluate but hard to predict or replicate. In the case of this patent the PUF is created using a mixture of magnetic and non-magnetic particles, creating a motif that can be detected using a low-cost reader.

    The abstract of the patent appears below:
    Physical unclonable functions having magnetic and non-magnetic particles" . . . [Read More at SecuringIndustry.com]