Related papers: Security bounds for the eavesdropping collective a…

This paper has been withdrawn by the author due to the need for further revision.

The goal of quantum key distribution (QKD) is to establish a secure key between two parties connected by an insecure quantum channel. To use a QKD protocol in practice, one has to prove that a finite size key is secure against general…

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This paper has been withdrawn by the authors.

This paper has been withdrawn.

This paper has been withdrawn by the author.

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This paper has been withdrawn by the author, because a profoundly overhauled and improved version, also with a new title and two more authors, has now been submitted to the arXiv, with no. hep-ph/0310059. In view of the elapsed time and the…

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This paper has been withdrawn because the first author submitted the paper without previously consulting the rest of the authors.

This paper has been withdrawn because of serious errors.

This paper has been withdrawn.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

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This paper has been withdrawn by the author due to a crucial error in the submission action.

This paper has been withdrawn by the authors due to new experimental results.

This paper has been withdrawn. Please see cond-mat/0605124 for new and updated data and conclusions pertaining to this study.

This paper has been withdrawn by the authors; its contents are superseded by that of hep-th/0105305 and hep-th/0212275.

This paper has been withdrawn by the author due to unspecified problems.

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This paper has been withdrawn