Related papers: Generalized Continuous Variables Quantum Key Distr…

This paper has been withdrawn by the author due to an error in the derivation.

The paper has been withdrawn by the author.

This paper has been withdrawn.

This paper has been withdrawn due to security loophole. We thank Dr G. P. he for pointing this to us.

This paper has been withdrawn by the author because there are some typos in proofs.

This paper has been withdrawn by the author due to an error.

This paper has been withdrawn by the author because Lemma 3 is incorrect. This mistake is crucial in this paper.

This paper has been withdrawn by the author.

This paper was withdrawn by the author due to a fatal error.

This paper has been withdrawn by the authour.

This paper has been withdrawn by the authors due to some technical problems in the paper.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author

This paper has been withdrawn: it does not evade the no-go results of Mayers, Lo and Chau, to whom I am most grateful for helpful correspondences.

%auto-ignore Paper has been withdrawn by the author.

This paper has been withdrawn. The main technical result will reappear in the new version of quant-ph/0501003.

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn by the author.

This paper has been withdrawn by the author, due to a crucial error in page 5.

This paper has been withdrawn.