Related papers: Quantum Bit Commitment from a Computation Bound

This paper has been withdrawn.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

%auto-ignore Paper has been withdrawn by the author.

This paper has been withdrawn by the authors,because the proposed protocol is still coverd by the no-go theorem of Mayers, Lo and Chau.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This paper has been withdrawn

The paper has been withdrawn by the authors

This paper has been withdrawn by the author.

This paper has been withdrawn.

This paper has been withdrawn as it has been superseded by 0808.2697

This paper has been withdrawn by the author.

This paper has been withdrawn.

The paper has been withdrawn by the author.

This paper was withdrawn by the author because severe errors were discovered.

This paper is withdrawn.

This paper has been withdrawn by the authors due to a crucial error.

This paper has been withdrawn by the author due to the incorrect argument for the security.

This paper has been withdrawn by the author.

This paper was withdrawn on 20.11.97.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the authors because the results obtained have been reported earlier by other authors.

This paper has been retracted, for obvious reasons.