Quantum cryptography: Seeking absolute security

Quantum cryptography is theoretically unbreakable, yet a handful of physicists are finding ways to hack into its secrets. Geoff Brumfiel finds out how.

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[2]  Jeffrey H. Shapiro,et al.  Complete physical simulation of the entangling-probe attack on the BB84 protocol , 2007, 2007 Quantum Electronics and Laser Science Conference.