Related papers: Quantum cryptography without a quantum channel

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The paper has bene withdrawn by the author.

This paper was withdrawn on 20.11.97.

This paper has been withdrawn by the author due to some errors.

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This paper has been withdrawn by the authors, due to the solution already existing in the literature.

This paper has been withdrawn by the author(s), due to technical copyright problems with the Royal Society of Chemistry.

Quantum cryptography allows one to distribute a secret key between two remote parties using the fundamental principles of quantum mechanics. The well-known established paradigm for the quantum key distribution relies on the actual…

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This paper is replaced by arXiv:1009.2490. The new paper includes a general impossibility result and restricted possibility results, and it has two additional authors.

This paper has been withdrawn by the author(s), due to the existence of a much better paper in http://arxiv.org/abs/cs.CR/0207027

This paper has been withdrawn by the author due to similarity to Author's other paper

This paper has been withdrawn by the author(s), due a crucial sign error in conclusion .

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The paper has been withdrawn.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author due to some problems.

This paper has been wthdrawn by the authors due to a critical error in the assessment of the entanglement and, consequently, of the protocol fidelity, when no postselection is performed.

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors.