Zero-proof crypto scheme can divine truths from nothing

http://www.nature.com/nature/journal/v510/n7506/carousel/nature13457-f1.jpg

Princeton University scientists have applied a cryptographic proof to verify if nuclear weapons have been disarmed, in a move that could reduce global nuke stockpiles and even help verify electronic voting.

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Story added 30. June 2014, content source with full text you can find at link above.