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Quantum Information Processing

Bit-oriented quantum public-key encryption based on quantum perfect encryption

Chenmiao Wu, Li Yang

Published May 25, 2016• 16 citations
Publisher
DOI
10.1007/s11128-016-1339-3

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We present several quantum public-key encryption (QPKE) protocols designed with conjugate coding single-photon string, thus may be realized in laboratory with nowadays techniques. Two of these schemes are orienting one-bit message, and are extended to two kinds of QPKE schemes orienting multi-bits. The novel structure of these protocols ensures they are information-theoretically secure with, probably, a bound greater than any given polynomial of nnn. Finally, we describe a way to conceal the classical part of the public key with quantum state, this idea is expected to enhance a scheme to be information-theoretically secure.