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CRYPTO
2009
Springer
14 years 2 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...
FSTTCS
2009
Springer
14 years 2 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
14 years 1 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
14 years 1 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
14 years 28 days 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...