Experimental demonstration of photonic quantum digital signatures

Robert J. Collins; Patrick J. Clarke; Vedran Dunjko; Erika Andersson; John Jeffers; Gerald S. Buller

doi:10.1117/12.971195

19 November 2012 Experimental demonstration of photonic quantum digital signatures

Robert J. Collins, Patrick J. Clarke, Vedran Dunjko, Erika Andersson, John Jeffers, Gerald S. Buller

Proceedings Volume 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI; 85421O (2012) https://doi.org/10.1117/12.971195
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

Abstract

Digital signature schemes are often used in interconnected computer networks to verify the origin and authenticity of messages. Current classical digital signature schemes based on so-called “one-way functions” rely on computational complexity to provide security over sufficiently long timescales. However, there are currently no mathematical proofs that such functions will always be computationally complex. Quantum digital signatures offers a means of confirming both origin and authenticity of a message with security verified by information theoretical limits. The message cannot be forged or repudiated. We have constructed, tested and analyzed the security of what is, to the best of our knowledge, the first example of an experimental quantum digital signature system.

Citation Download Citation

Robert J. Collins, Patrick J. Clarke, Vedran Dunjko, Erika Andersson, John Jeffers, and Gerald S. Buller "Experimental demonstration of photonic quantum digital signatures", Proc. SPIE 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, 85421O (19 November 2012); https://doi.org/10.1117/12.971195

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