Public Channel Cryptography Based on Synchronization of Chaotic Lasers

Ido Kanter, Yitzhak Peleg, Meital Zigzag, Wolfgang Kinzel

Research output: Contribution to journalArticlepeer-review


Recently, physical random number generators (RBGs) based on chaotic semiconductor lasers were shown to exceed Gbit/s rates. Whether secure synchronization of two high rate physical RBGs is possible remains an open question. Here we propose a method, whereby two fast RBGs based on mutually coupled chaotic lasers, are synchronized. Using information theoretic analysis we demonstrate security against a powerful computational eavesdropper, capable of noiseless amplification, where all parameters are publicly known. The method is also extended to secure synchronization of a small network of three RBGs.
Original languageEnglish
Pages (from-to)326-329
Number of pages4
JournalIEICE Proceedings Series
Issue numberB1L-B1
StatePublished - 4 Sep 2011


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