Chaotic key generation and application in OFDM-PON using QAM constellation points

Wei, Hanhan; Cui, Mengwei; Zhang, Chongfu; Wu, Ting-Wei; Wen, Heping; Zhang, Zhi; Chen, Yuhang; Qiu, Kun

doi:10.1016/j.optcom.2021.126911

Cited by 8 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to upper-layer security protection, physical layer security, which provides transparent encryption for all the data, is considered a promising solution to exploit the inherent randomness of optical access networks. So far, researchers have proposed many physical layer security methods such as quantum noise stream cipher (QNSC) [89][90][91][92][93][94], time domain spectral phase encoding [95][96][97], chaotic encryption [98][99][100][101], and so on. Recently, among those schemes, a number of chaos-based physical layer security schemes have been proposed for the application of joint subcarrier variations in the NG-PON, especially in the OFDM-PON.…”

Section: Beyond-100g Ng-pon Security Protection Technologymentioning

confidence: 99%

Key Technologies for a Beyond-100G Next-Generation Passive Optical Network

Feng,

Ma,

Zhang

et al. 2023

Photonics

View full text Add to dashboard Cite

The explosive development of emerging telecommunication services has stimulated a huge growth in bandwidth demand as people seek universal access to telecommunication networks. In addition, the kinds of services of an existing optical access network are becoming more flexible. In order to provide higher capacity and meet higher transmission performance requirements, it is necessary to further explore the application of the beyond-100G passive optical network (PON). This paper offers a comprehensive review and outline of the prospects of technologies for bringing a beyond-100G PON to practical applications in the future. We review the current existing technologies, mainly in terms of the physical layer and higher media access control layer. These key technologies for the beyond-100G PON, which plays an increasingly significant role, include the advanced multiplexing technology, physical layer digital signal processing technology, infrastructure-sharing technology, security protection technology, and intelligent control management key technologies. Finally, open issues and new challenges for the next-generation PON are focused upon.

show abstract

Section: Beyond-100g Ng-pon Security Protection Technologymentioning

confidence: 99%

Key Technologies for a Beyond-100G Next-Generation Passive Optical Network

Feng,

Ma,

Zhang

et al. 2023

Photonics

View full text Add to dashboard Cite

show abstract

“…Among them, the problem of encrypted image transmission is particularly important [ 9 , 10 ]. Optical network technology based on fibre optic communication has developed rapidly in recent years, and due to the advantages of efficient transmission in optical networks, it plays an irreplaceable role in the transceiver side of embedded devices [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Embedded Implementation of Secure Image Encryption Scheme Using DWT and 2D-LASM

Wen

Chen

Zheng

et al. 2022

Entropy

View full text Add to dashboard Cite

In order to further improve the information effectiveness of digital image transmission, an image-encryption algorithm based on 2D-Logistic-adjusted-Sine map (2D-LASM) and Discrete Wavelet Transform (DWT) is proposed. First, a dynamic key with plaintext correlation is generated using Message-Digest Algorithm 5 (MD5), and 2D-LASM chaos is generated based on the key to obtain a chaotic pseudo-random sequence. Secondly, we perform DWT on the plaintext image to map the image from the time domain to the frequency domain and decompose the low-frequency (LF) coefficient and high-frequency (HF) coefficient. Then, the chaotic sequence is used to encrypt the LF coefficient with the structure of “confusion-permutation”. We perform the permutation operation on HF coefficient, and we reconstruct the image of the processed LF coefficient and HF coefficient to obtain the frequency-domain ciphertext image. Finally, the ciphertext is dynamically diffused using the chaotic sequence to obtain the final ciphertext. Theoretical analysis and simulation experiments show that the algorithm has a large key space and can effectively resist various attacks. Compared with the spatial-domain algorithms, this algorithm has great advantages in terms of computational complexity, security performance, and encryption efficiency. At the same time, it provides better concealment of the encrypted image while ensuring the encryption efficiency compared to existing frequency-domain methods. The successful implementation on the embedded device in the optical network environment verifies the experimental feasibility of this algorithm in the new network application.

show abstract

High-quality restoration image encryption using DCT frequency-domain compression coding and chaos

Wen

Liu

et al. 2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

With the arrival of the age of big data, the amount and types of data in the process of information transmission have increased significantly, and the full-disk encryption mode used by traditional encryption algorithms has certain limitations of the times. In order to further improve the bandwidth efficiency of digital images in the transmission process and the information effectiveness of digital image transmission, this paper proposes an algorithm of high-quality restoration image encryption using DCT frequency-domain compression coding and chaos. Firstly, the image hash value is used for the generation of an encryption key with plaintext correlation, then lightweight chaos is generated based on the key to obtain a pseudo-random sequence. Secondly, the image is partitioned into subblock, and converted from time domain into frequency domain by employing Discrete Cosine Transform (DCT) on each block, then perform quantization operation based on frequency domain information to obtain DCT coefficient matrix. Thirdly, the direct current (DC) coefficients and alternating current (AC) coefficients are extracted in the DCT coefficient matrix and compressed by different encoding methods to obtain two sets of bitstream containing DC coefficient and AC coefficient information. Fourthly, permute the DC coefficient bit stream by the chaotic sequence, and reconstruct it with the AC coefficient bit stream to obtain the frequency domain ciphertext image. Finally, the chaotic sequence is used to diffuse ciphertext, and the processed hash value is hidden in the ciphertext to obtain the final ciphertext. The theoretical and experimental analysis showed that the key length reaches 341 bits, and the PSNR value of the restored image is close to 60, all of which satisfy the theoretical value. Therefore, the algorithm has the characteristics of high compression rate, high-quality image restoration large key space, strong plaintext sensitivity, strong key sensitivity and so on. Our method proposed in this paper is expected to provide a new idea for confidential and secure communication in the age of big data.

show abstract

Chaotic key generation and application in OFDM-PON using QAM constellation points

Cited by 8 publications

References 23 publications

Key Technologies for a Beyond-100G Next-Generation Passive Optical Network

Key Technologies for a Beyond-100G Next-Generation Passive Optical Network

Design and Embedded Implementation of Secure Image Encryption Scheme Using DWT and 2D-LASM

High-quality restoration image encryption using DCT frequency-domain compression coding and chaos

Contact Info

Product

Resources

About