Feedback phase in optically generated chaos: A secret key for cryptographic applications

被引：59

作者：

Bogris, Adonis ^{[1
]}

Rizomiliotis, Panagiotis ^{[2
]}

Chlouverakis, Konstantinos E. ^{[1
]}

Argyris, Apostolos ^{[1
]}

Syvridis, Dimitris ^{[1
]}

机构：

[1] Univ Athens, Dept Informat & Telecommun, Opt Commun Lab, GR-15784 Athens, Greece

[2] Katholieke Univ Leuven, Dept ESAT SCD COSIC, B-3001 Heverlee, Belgium

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 2008年 / 44卷 / 1-2期

关键词：

chaos communications; cryptography; optical feedback; semiconductor lasers;

D O I：

10.1109/JQE.2007.911687

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The feedback phase in a chaotic system consisting of a semiconductor laser subject to delayed optical feedback is considered for the first time as a secret key for secure chaotic communications not exclusively based on hardware uniqueness. Extensive numerical simulations illustrate that the feedback phase is of extreme importance as far as synchronization is concerned. The ability of an eavesdropper to attack the intensity-modulated message when a pseudorandom variation of the feedback phase is imposed at the transmitter's side is numerically quantified by bit-error-rate calculations. The analysis demonstrates that the eavesdropper is not able to synchronize and hence to extract the message when he is not aware of the phase variations even if he is equipped with an identical chaotic device.

引用

页码：119 / 124

页数：6

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