Enhancing Optical-CDMA Confidentiality With Multicode-Keying Encryption

Author

Wen-Hao Chang ; Guu-Chang Yang ; Cheng-Yuan Chang ; Kwong, Wing C.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan

Volume

33

Issue

9

fYear

2015

fDate

May1, 1 2015

Firstpage

1708

Lastpage

1718

Abstract

Optical codes with large cardinality and tree structures of multiple subsets of codewords for adjustable code performance and cardinality have recently been proposed. As studied in this paper, these characteristics support multicode-keying encryption for enhancing physical-layer confidentiality in optical code-division multiple-access systems and networks. The concept of the multicode-keying encryption technique is introduced. The associated all-optical hardware is designed and validated with OptiSystem™ simulation. The theoretical analyses of confidentiality improvement by means of rapid codeword switching and multicode-keying encryption are formulated.

Keywords

code division multiple access; cryptography; optical communication; optical switches; OptiSystem simulation; adjustable code performance; all-optical hardware; codewords; confidentiality improvement; multicode-keying encryption technique; multiple subsets; optical code-division multiple-access systems; optical codes; optical-CDMA confidentiality; physical-layer confidentiality; rapid codeword switching; tree structures; Encryption; High-speed optical techniques; Logic gates; Optical pulses; Optical saturation; Optical switches; Semiconductor optical amplifiers; Confidentiality; encryption; multicode keying; optical code division multiple access (O-CDMA);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2015.2394792

Filename

7017475