arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv quant-ph/0608029quant-ph
收藏

用于量子密钥扩展的高效可实现代码

Efficiently implementable codes for quantum key expansion

Zhicheng Luo, Igor Devetak

摘要:

BB84量子密钥分发协议安全性的Shor-Preskill证明依赖于理论上存在具有“双重包含”性质的好的经典纠错码。因此,BB84的实际实现需要这种码的明确且有效的可解码构造,这是未知的。另一方面,现代编码理论中存在着大量性能优良的非对偶码和高效的译码算法。我们表明,双包含约束可以解除在一个小的代价:而不是一个密钥分配协议,得到一个有效的可实现的密钥扩展协议,能够增加一个常数因子的大小的预共享密钥。

英文摘要:

The Shor-Preskill proof of the security of the BB84 quantum key distribution protocol relies on the theoretical existence of good classical error-correcting codes with the ``dual-containing'' property. A practical implementation of BB84 thus requires explicit and efficiently decodable constructions of such codes, which are not known. On the other hand, modern coding theory abounds with non-dual-containing codes with excellent performance and efficient decoding algorithms. We show that the dual-containing constraint can be lifted at a small price: instead of a key distribution protocol, an efficiently implementable key expansion protocol is obtained, capable of increasing the size of a pre-shared key by a constant factor.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑