Device-Independent Security of Quantum Cryptography against Collective Attacks

2007/02/28 by Antonio Acin, Antonio Acín, Nicolas Brunner +4 · 4 citations
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph

paper · pdf · doi:10.1103/physrevlett.98.230501

published as Phys. Rev. Lett. 98, 230501 (2007) · 5 pages, 1 figure. v2: minor modifications

openalex publication_date 2007/06/04 · arxiv created 2007/06/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We present the optimal collective attack on a quantum key distribution protocol in the "device-independent" security scenario, where no assumptions are made about the way the quantum key distribution devices work or on what quantum system they operate. Our main result is a tight bound on the Holevo information between one of the authorized parties and the eavesdropper, as a function of the amount of violation of a Bell-type inequality.

Citations

• Distillation of secret key and entanglement from quantum states
• Efficient quantum key distribution secure against no-signalling eavesdroppers

Cited by

• Quantum Information Processing with Adversarial Devices
• Finite-size analysis of a continuous-variable quantum key distribution
• Experimental quantum key distribution based on a Bell test
• Quantifying multipartite nonlocality via the size of the resource