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Device-independent security in quantum key distribution

Device-independent security in quantum key distribution

Device-independent security in quantum key distribution. Lluis Masanes ICFO-The Institute of Photonic Sciences arXiv:0807.2158. Outline. Why violation of Bell inequalities plus no-signaling imply secure key distribution? Description of the key distribution protocol The security definition

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524 views • 39 slides
Minentropy and its Variations for Cryptography

Minentropy and its Variations for Cryptography

Minentropy and its Variations for Cryptography. Leonid Reyzin May 23, 2011 5 th International Conference on Information Theoretic Security. W. guessability and entropy. Many ways to measure entropy If I want to guess your password, which entropy do I care about?

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507 views • 36 slides
Quantum cryptography -the final battle?

Quantum cryptography -the final battle?

Quantum cryptography -the final battle?. CS4236 Principles of Computer Security National University of Singapore Jonas Rundberg, NT030157A. Quantum mechanics Introduction Notation Polarized photons Experiment. Quantum cryptology Key distribution Eavesdropping Detecting eavesdropping

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566 views • 32 slides
Universally- composable Security of Key Distribution from Causality Constraints

Universally- composable Security of Key Distribution from Causality Constraints

Universally- composable Security of Key Distribution from Causality Constraints. Based on results by: Masanes , Renner, Christandl , Winter and Barrett. Main Idea. Main Idea. Braunstein -Caves Bell Inequality. The Protocol. Alice. Bob. The Protocol. Alice. Bob.

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267 views • 15 slides

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