Encryption Using Optical Pseudo-Random Binary Sequence Based on Optical Logic Gate

Q4 Engineering
Shunyao Fan, A. F. M. Moshiur Rahman, N. Dutta
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引用次数: 0

Abstract

In this paper, we propose a scheme for high-speed all-optical Pseudo-Random Binary Sequence (PRBS) generator and use it for generating keystream for encryption. This PRBS generator design is based on Linear Feedback Shift Registers (LFSR) and optical XOR and AND gates. The optical logical gates are based on quantum dot-semiconductor optical amplifier Mach-Zehnder interferometer (QD-SOA-MZI). With two photon absorption (TPA) in quantum dot-semiconductor optical amplifier (QD-SOA), this kind of optical logic gates performs well when processing data in an ultra-fast timescale and therefore able to function as high speed PRBS generator. Result shows that it’s possible for this scheme to realize all-optical encryption and decryption at high process rate up to 320 Gb/s. We simulated different ways of generating keystream with schemes such as cascaded generator, parallel generator and alternating step generator. These generators use more than one LFSR. Result shows that the schemes we use can function as stable and complex keystream generators.
基于光逻辑门的光学伪随机二进制序列加密
本文提出了一种高速全光伪随机二进制序列(PRBS)发生器方案,并将其用于生成加密密钥流。该PRBS发生器设计基于线性反馈移位寄存器(LFSR)和光学异或与门。光学逻辑门基于量子点-半导体光放大器马赫-曾德尔干涉仪(QD-SOA-MZI)。这种光逻辑门在量子点半导体光放大器(QD-SOA)中采用双光子吸收(TPA),在超快时间尺度下处理数据时表现良好,因此可以作为高速PRBS发生器。结果表明,该方案可以实现高达320 Gb/s的高处理速率的全光加解密。模拟了用级联发生器、并联发生器和交变步进发生器等方案生成密钥流的不同方式。这些发生器使用多个LFSR。结果表明,我们所使用的方案可以作为稳定和复杂的密钥流生成器。
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来源期刊
International Journal of High Speed Electronics and Systems
International Journal of High Speed Electronics and Systems Engineering-Electrical and Electronic Engineering
CiteScore
0.60
自引率
0.00%
发文量
22
期刊介绍: Launched in 1990, the International Journal of High Speed Electronics and Systems (IJHSES) has served graduate students and those in R&D, managerial and marketing positions by giving state-of-the-art data, and the latest research trends. Its main charter is to promote engineering education by advancing interdisciplinary science between electronics and systems and to explore high speed technology in photonics and electronics. IJHSES, a quarterly journal, continues to feature a broad coverage of topics relating to high speed or high performance devices, circuits and systems.
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