Koizumi Hayato, Morikatsu Shinichiro, Aida Hiroki, Nozawa Takahiro, Kakesu Izumi, Uchida Atsushi, Yoshimura Kazuyuki, Muramatsu Jun, Davis Peter
Department of Information and Computer Sciences, Saitama University, 255 Shimo-Okubo, Saitama City, Saitama, 338-8570, Japan.
Opt Express. 2013 Jul 29;21(15):17869-93. doi: 10.1364/OE.21.017869.
It has been proposed that a secure key distribution scheme using correlated random bit sequences can be implemented using common random-signal induced synchronization of semiconductor laser systems. In this scheme it is necessary to use laser systems consisting of multiple cascaded lasers to be secure against a powerful eavesdropper. In this paper, we report the results of an experimental study that demonstrate that the common random-signal induced synchronization is possible in cascaded semiconductor laser systems. We also show that the correlated random bit sequences generated in the synchronized cascaded laser systems can be used to create an information-theoretically secure key between two legitimate users.
有人提出，可以利用半导体激光系统的公共随机信号诱导同步来实现一种使用相关随机比特序列的安全密钥分发方案。在该方案中，有必要使用由多个级联激光器组成的激光系统，以防范强大的窃听者。在本文中，我们报告了一项实验研究的结果，该结果表明在级联半导体激光系统中实现公共随机信号诱导同步是可能的。我们还表明，在同步级联激光系统中生成的相关随机比特序列可用于在两个合法用户之间创建信息理论上安全的密钥。
