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CRYPTO
2009
Springer
15 years 4 months ago
2009
Springer
We consider two-party quantum protocols starting with a transmission of some random BB84 qubits followed by classical messages. We show a general “compiler” improving the secur...
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FSTTCS
2009
Springer
15 years 4 months ago
2009
Springer
ABSTRACT. A non-local box is an abstract device into which Alice and Bob input bits x and y respectively and receive outputs a and b respectively, where a, b are uniformly distribu...
CRYPTO
2007
Springer
15 years 3 months ago
2007
Springer
We derive a new entropic quantum uncertainty relation involving min-entropy. The relation is tight and can be applied in various quantum-cryptographic settings. Protocols for quant...
ICALP
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. In this paper we attempt to formally study two very intuitive physical models: sealed envelopes and locked boxes, often used as illustrations for common cryptographic ope...
ACMICEC
2004
ACM
15 years 3 months ago
2004
ACM
We start with the usual paradigm in electronic commerce: a consumer who wants to buy from a merchant. However, both parties wish to enjoy maximal privacy. In addition to remaining...