منابع مشابه
Random Coin Tossing
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متن کاملExperimental quantum coin tossing.
In this Letter we present the first implementation of a quantum coin-tossing protocol. This protocol belongs to a class of "two-party" cryptographic problems, where the communication partners distrust each other. As with a number of such two-party protocols, the best implementation of the quantum coin tossing requires qutrits, resulting in a higher security than using qubits. In this way, we ha...
متن کاملTossing a Biased Coin
When we talk about a coin toss, we think of it as unbiased: with probability one-half it comes up heads, and with probability one-half it comes up tails. An ideal unbiased coin might not correctly model a real coin, which could be biased slightly one way or another. After all, real life is rarely fair. This possibility leads us to an interesting mathematical and computational question. Is there...
متن کاملVariable Bias Coin Tossing
Alice is a charismatic quantum cryptographer who believes her parties are unmissable; Bob is a glamorous string theorist who believes he is an indispensable guest. To prevent possibly traumatic collisions of self-perception and reality, their social code requires that decisions about invitation or acceptance be made via a cryptographically secure variable bias coin toss (VBCT). This generates a...
متن کاملRelativistic quantum coin tossing
A relativistic quantum information exchange protocol is proposed allowing two distant users to realize “coin tossing” procedure. The protocol is based on the point that in relativistic quantum theory reliable distinguishing between the two orthogonal states generally requires a finite time depending on the structure of these states. PACS numbers: 03.67.-a, 03.65.Bz, 42.50Dv The coin tossing pro...
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ژورنال
عنوان ژورنال: Distributed Computing
سال: 2014
ISSN: 0178-2770,1432-0452
DOI: 10.1007/s00446-013-0206-z