PIRSA:10100055

Device-independent quantum key distribution

Hanggi, E. (2010). Device-independent quantum key distribution. Perimeter Institute. https://pirsa.org/10100055

Hanggi, Esther. Device-independent quantum key distribution. Perimeter Institute, Oct. 25, 2010, https://pirsa.org/10100055 

          @misc{ pirsa_PIRSA:10100055,
            doi = {10.48660/10100055},
            url = {https://pirsa.org/10100055},
            author = {Hanggi, Esther},
            keywords = {Quantum Information},
            language = {en},
            title = {Device-independent quantum key distribution},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {oct},
            note = {PIRSA:10100055 see, \url{https://pirsa.org}}
          }

Esther Hanggi

ETH Zurich - Institut für Theoretische Physik

Talk number
PIRSA:10100055
Collection
Talk Type
Subject
Abstract
Even though the security of quantum key distribution has been rigorously proven, most practical schemes can be attacked and broken. These attacks make use of imperfections of the physical devices used for their implementation. Since current security proofs assume that the physical devices' exact and complete specification is known, they do not hold for this scenario. The goal of device-independent quantum key distribution is to show security without making any assumptions about the internal working of the devices. In this talk, I will first explain the assumptions 'traditional' security proofs make and why they are problematic. Then, I will discuss how the violation of Bell inequalities can be used to show security even when a large part of the physical devices is untrusted.