Asymptotically Secure Quantum Oblivious Transfer

Details Asymptotically Secure Quantum Oblivious Transfer Asymptotically Secure Quantum Oblivious Transfer

2010-04-12

arxiv.org/abs/1004.1871v3

Physics

Quantum Physics

This paper has been withdrawn by the authors because the scheme may be insecure, due to an attack provided by Cr\'epeau Claude

Scientific paper

Due to the commonly known impossibility results, unconditional security for oblivious transfer is seen as impossible even in the quantum world. In this paper, we try to overcome these impossibility results by proposing a protocol which is asymptotically secure. The protocol makes use of the basic properties of non-orthogonal quantum states. Apart from security, the advantages of our protocol include the fact that the honest players do not need to have quantum memory or create entanglement between individual qubits. The relation of our work to the known impossibility results is also discussed.

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