相关论文: A fully efficient secure quantum cryptography prot…
This paper has been withdrawn by the author.
This paper has been withdrawn due to security loophole.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This paper has been withdrawn by the author(s).The scheme presented is insecure.
This paper has been withdrawn.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This paper has been withdrawn by the authors because the results obtained have been reported earlier by other authors.
This paper has been withdrawn by the author. It will be published again after submission to a journal.
This paper has been withdrawn by the author
This paper has been withdrawn. See quant-ph/9806031 for a discussion.
We describe how to modify the BB84 protocol for quantum cryptography in order to make it deterministic. We study both theoretical and experimental aspects of this issue, showing that the new scheme is as secure as the old one, more…
This paper has been withdrawn.
We developed a modified version of a conventional (BB84) quantum key distribution protocol that can be understood and implemented by students at a pre-university level. We intentionally introduce a subtle but critical simplification to the…
This paper has been withdrawn and replaced by quant-ph/0609207.
A two-layer quantum protocol for secure transmission of data using qubits is presented. The protocol is an improvement over the BB84 QKD protocol. BB84, in conjunction with the one-time pad algorithm, has been shown to be unconditionally…
A theorem is proved which states that no classical key generating protocol could ever be provably secure. Consequently, candidates for provably secure protocols must rely on some quantum effect. Theorem relies on the fact that BB84 Quantum…
This paper has been withdrawn by the authors,because the proposed protocol is still coverd by the no-go theorem of Mayers, Lo and Chau.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 devises a simple quantum bit commitment protocol that is just as easy to implement as any existing practical quantum bit commitment protocols but will be more secure. It will be infinitely close to being unconditionally fully…
This paper has been withdrawn.
In this article I present a protocol for quantum cryptography which is secure against attacks on individual signals. It is based on the Bennett-Brassard protocol of 1984 (BB84). The security proof is complete as far as the use of single…
We propose a QKD protocol for trusted node relays. Our protocol shifts the communication and computational weight of classical post-processing to the end users by reassigning the roles of error correction and privacy amplification, while…
A quantum cryptographic protocol based in public key cryptography combinations and private key cryptography is presented. Unlike the BB84 protocol [1] and its many variants [2,3] two quantum channels are used. The present research does not…