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| Unconditionally secure quantum bit commitment is impossible |
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| Author(s): Mayers D |
| Source: PHYSICAL REVIEW LETTERS Volume: 78 Issue: 17 Pages: 3414-3417 Published: APR 28 1997 |
| Times Cited: 162 References: 15 |
| Abstract: The claim of quantum cryptography has always been that it can provide protocols that are unconditionally secure, that is, for which the security does not depend on any restriction on the time, space, or technology available to the cheaters. We show that this claim does not hold For any quantum bit commitment protocol. Since many cryptographic tasks use bit commitment as a basic primitive, this result implies a severe setback for quantum cryptography. The model used encompasses all reasonable implementations of quantum bit commitment protocols in which the participants have not met before, including those that make use of the theory of special relativity. |
| Document Type: Article |
| Language: English |
| Reprint Address: Mayers, D (reprint author), UNIV MONTREAL, DEPT IRO, CP 6128, SUCCURSALE CTR VILLE, MONTREAL, PQ H3C 3J7 CANADA |
| Publisher: AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| Subject Category: Physics, Multidisciplinary |
| IDS Number: WW399 |
| ISSN: 0031-9007 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |