Secure communication technology can conquer lack of trust

Many scenarios in business and communication require that two parties share information without either being sure if they can trust the other. Examples include secure auctions and identification at ATM machines. Exploiting the strange properties of the quantum world could be the answer to dealing with such distrust: researchers at the Centre for Quantum Technologies (CQT) at the National University of Singapore have used the quantum properties of light to perform the world's first demonstration of a 'secure bit commitment' technology. The work is described in Nature Communications.

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