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Computing a secret, unbreakable key

What once took months by some of the world's leading scientists can now be done in seconds by undergraduate students thanks to software developed at the University of Waterloo's Institute for Quantum Computing, paving the ...

Quantum cryptography: Keeping your secrets secret

An article in Nature reviewing developments in quantum cryptography describes how we can keep our secrets secret even when faced with the double challenge of mistrust and manipulation.

PUFFIN offers graphics card breakthrough versus break-in

(Phys.org)—The PUFFIN Project has come up with research that suggests GPU manufacturing processes leave each product with a unique kind of fingerprint. PUFFIN stands for physically unclonable functions found in standard ...

Secure printing with water-based invisible ink

Researchers in China have developed a rewriteable paper coating that can encrypt secret information with relatively low-tech invisible ink—water. A message printed out by a water-jet printer on a manganese-complex-coated ...

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