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Security Proof of Quantum Key Distribution
Kiyoshi TAMAKI Toyohiro TSURUMARU
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: INVITED PAPER (Special Section on Leading-Edge Developments in Quantum Cryptographic Systems)
unconditional security, one-time pad, quantum key distribution, trojan horse attack,
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Quantum key distribution (QKD) is a way to securely expand the secret key to be used in One-time pad, and it is attracting great interest from not only theorists but also experimentalists or engineers who are aiming for the actual implementations. In this paper, we review the theoretical aspect of QKD, especially we focus on its security proof, and we briefly mention the possible problems and future directions.