Friday, April 19, 2013

1304.5087 (Min Liang)

Quantum fully homomorphic encryption on single qubit    [PDF]

Min Liang
Suppose some data have been encrypted, can you compute with the data without decrypting them? This problem has been studied as classical homomorphic encryption and blind computing. We consider this problem in the context of quantum information processing, and present a definition of quantum homomorphic encryption (QHE) and quantum fully homomorphic encryption (QFHE). Then we construct a QFHE scheme based on quantum one-time pad. This scheme permits any unitary transformation on single qubit that has been encrypted. Compared with classical homomorphic encryption, the QFHE scheme has perfect security.
View original: http://arxiv.org/abs/1304.5087

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