Related papers: Performance of two decoy-state quantum cryptograph…

This paper has been withdrawn by the author

This paper has been withdrawn: it does not evade the no-go results of Mayers, Lo and Chau, to whom I am most grateful for helpful correspondences.

This paper has been withdrawn.

This paper has been withdrawn by the author due to some errors.

This paper has been withdrawn.

This paper has been withdrawn.

This paper has been withdrawn by the author due to the need for further revision.

The paper was retracted.

This paper has been withdrawn by the author due to some errors.

This paper has been withdrawn by the author due to errors.

This paper has been withdrawn, and will be superseded by another submission.

This paper has been withdrawn by the authour.

This paper has been withdrawn by the authors,because the proposed protocol is still coverd by the no-go theorem of Mayers, Lo and Chau. We thank H-K. Lo and HF Chau for helpful correspondences.

This paper has been withdrawn.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This paper has been withdrawn by the author, because a better treatment is given in the author's Phd. thesis (Sections 3.4.6 and 4.4), now available on the arxiv.

The paper has been withdrawn by the author because the result obtained has been reported earlier by other authors.

This paper was withdrawn on 20.11.97.

This paper has been withdrawn.

This paper has been withdrawn as it has been superseded by postings arXiv:quant-ph/0702147 and arXiv:0712.2935

This paper is withdrawn. See quant-ph/9806031 for a discussion.