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Published online 20 September 2002 | Nature | doi:10.1038/news020916-15
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Cheap trick secures secrets
Simple new encryption system might fob off credit card forgers.
Your key fob could soon double as your credit card. Cheap, easy-to-make tokens of a new glass-studded epoxy resin hold encoded information in a form that's more tamper-resistant and harder to forge than the magnetic strips on swipe cards1.
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