Quantum cryptographic schemes ensure security by sacrificing data to detect tampering. Now, an approach shows that monitoring disturbance is not essential because the limit on leaked information can be known in advance.
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Curty, M. Know your enemy. Nature Phys 10, 479–480 (2014). https://doi.org/10.1038/nphys3002
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DOI: https://doi.org/10.1038/nphys3002
