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Title: Experimental implementation of bit commitment in the noisy-storage model
Authors: Ng, N.H.Y.
Joshi, S.K.
Chen Ming, C.
Kurtsiefer, C. 
Wehner, S. 
Issue Date: 2012
Source: Ng, N.H.Y., Joshi, S.K., Chen Ming, C., Kurtsiefer, C., Wehner, S. (2012). Experimental implementation of bit commitment in the noisy-storage model. Nature Communications 3. ScholarBank@NUS Repository.
Abstract: Fundamental primitives such as bit commitment and oblivious transfer serve as building blocks for many other two-party protocols. Hence, the secure implementation of such primitives is important in modern cryptography. Here we present a bit commitment protocol that is secure as long as the attacker's quantum memory device is imperfect. The latter assumption is known as the noisy-storage model. We experimentally executed this protocol by performing measurements on polarization-entangled photon pairs. Our work includes a full security analysis, accounting for all experimental error rates and finite size effects. This demonstrates the feasibility of two-party protocols in this model using real-world quantum devices. Finally, we provide a general analysis of our bit commitment protocol for a range of experimental parameters. © 2012 Macmillan Publishers Limited. All rights reserved.
Source Title: Nature Communications
ISSN: 20411723
DOI: 10.1038/ncomms2268
Appears in Collections:Staff Publications

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