Security of Practical QKD Links and Networks

Norbert Lütkenhaus
Institute for Quantum Computing
Institute for Quantum Computing

While QKD protocols can be proven secure, we cannot prove security of actual devices. At the beginning of my talk I will review our expectations about security proofs of QKD, including model assumptions and their verifications. In the second half I will present some recent results about the security of realistic phase-encoded BB84 protocols and about simplified trusted repeater networks.

Presentation (PDF File)

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