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News Link • Hacking, Cyber Security

Zero-proof crypto scheme can divine truths from nothing


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.

The cryptographic scheme is a form of zero-knowledge proof first developed in the 1980s. Such proofs allow a party to prove something to a second party without the need to convey sensitive information or even answer yes or no to questions. In the case of nuclear disarmament that's handy because it means shy states can participate in nuke nullification efforts without giving away other secrets.

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