Digital Watermarking Technology Based on LDPC Code and Chaotic Sequence

Wang, Zhongxun; Sha, Kai-yue; Gao, Xinglong

doi:10.1109/access.2022.3166475

Cited by 5 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A secret key technique was used to control the watermark extraction to improve the security of the watermarking system; the authors proposed an additional step during the neural network training by adding noise to the generated image to resist attacks and improve robustness. Wang et al [23] proposed an improved encryption algorithm based on the Low-Density Prity Check Code (LDPC) by expanding the key space aiming to reduce the bit error rate and improve the security of the system. The proposed model shows that even if the encryption of the carrier image is illegally cracked, copyright protection still functions by extracting the watermark.…”

Section: Related Workmentioning

confidence: 99%

Robust, Secure and Semi-Blind Watermarking Technique Using Flexible Scaling Factor in Block-Based Wavelet Algorithm

2022

View full text Add to dashboard Cite

Multimedia security has received much attention recently because of the rapid transmission of elements such as text, images, audio, video, software, animation and games. Security is becoming especially critical for content owners concerned about the illegal usage of their original products. Encryption and watermarking are two methodologies for digital applications. Spatial domain and frequency domain watermarking algorithms give very promising results in embedding binary images into the cover images. This paper proposed a new method of semi-blind watermarking technique. The digital images are divided into 4 × 4 blocks and converted into discrete Wavelet transformations (DWTs). The binary image is embedded into each block using the flexible scaling factor method. Experimental results show that the proposed method has higher peak signal to noise ratio (PSNR) and similarity ratio (SR) values compared to the standard Wavelet transformation and block-based Wavelet algorithms. The results prove that the proposed hybrid algorithm is more effective, robust, secure and resistant than DWT and block-based DWT algorithms.

show abstract

Section: Related Workmentioning

confidence: 99%

Robust, Secure and Semi-Blind Watermarking Technique Using Flexible Scaling Factor in Block-Based Wavelet Algorithm

2022

View full text Add to dashboard Cite

show abstract

“…Among these techniques, CSIbased symmetric key cryptography is known to be effective in 5G IoT networks where key distribution and management are difficult [21]. Furthermore, chaos theory is highly compatible with symmetric key cryptography because of its initial value sensitivities, and is an important way to realize PLS [22,23]. We also proposed chaos modulation, which encrypts a modulated signal by utilizing a shared key between legitimate users (Alice and Bob) and the initial value sensitivities [24].…”

Section: Introductionmentioning

confidence: 99%

High-Quality and Low-Complexity Polar-Coded Radio-Wave Encrypted Modulation Utilizing Multipurpose Frozen Bits

Asano

Abe

Kato

et al. 2023

IEICE Trans. Commun.

View full text Add to dashboard Cite

In recent years, physical layer security (PLS), which utilizes the inherent randomness of wireless signals to perform encryption at the physical layer, has attracted attention. We propose chaos modulation as a PLS technique. In addition, a method for encryption using a special encoder of polar codes has been proposed (PLS-polar), in which PLS can be easily achieved by encrypting the frozen bits of a polar code. Previously, we proposed a chaos-modulated polar code transmission method that can achieve high-quality and improved-security transmission using frozen bit encryption in polar codes. However, in principle, chaos modulation requires maximum likelihood sequence estimation (MLSE) for demodulation, and a large number of candidates for MLSE causes characteristic degradation in the low signal-to-noise ratio region in chaos polar transmission. To address this problem, in this study, we propose a versatile frozen bit method for polar codes, in which the frozen bits are also used to reduce the number of MLSE candidates for chaos demodulation. The numerical results show that the proposed method shows a performance improvement by 1.7 dB at a block error rate of 10 -3 with a code length of 512 and a code rate of 0.25 compared with that of conventional methods. We also show that the complexity of demodulation can be reduced to 1/16 of that of the conventional method without degrading computational security. Furthermore, we clarified the effective region of the proposed method when the code length and code rate were varied.

show abstract

“…As an important medium of information exchange, the image has become an important research object of scholars. Many methods are proposed to protect images [1][2][3][4], such as image hiding technology, zerowatermarking technology, and image encryption technology [5][6][7][8][9]. Image encryption technology is to convert plaintext into noise image; it is the most commonly used technology.…”

Section: Introductionmentioning

confidence: 99%

2D Sin-Cos-Henon Map for Color Image Encryption with High Security

Cheng

Wang

Dai

et al. 2022

Journal of Applied Mathematics

View full text Add to dashboard Cite

In this paper, a high security color image encryption algorithm is proposed by 2D Sin-Cos-HÃ©non (2D-SCH) system. A new two-dimensional chaotic system which is 2D-SCH. This system is hyperchaotic. The use of the 2D-SCH, a color image encryption algorithm based on random scrambling and localization diffusion, is proposed. First, the secret key is generated by SHA512 through plaintext. As the initial value of the 2D-SCH system, the secret key is used to generate chaotic sequences. Then, the random scrambling is designed based on chaotic sequences. Finally, a pair of initial points is generated by the secret key; the image diffuses around this point. The ciphertext is obtained by a double encryption. Different from the traditional encryption algorithm, this paper encrypts three channels of color image simultaneously, which greatly improves the security of the algorithm. Simulation results show that the algorithm can resist various attacks.

show abstract

Digital Watermarking Technology Based on LDPC Code and Chaotic Sequence

Cited by 5 publications

References 22 publications

Robust, Secure and Semi-Blind Watermarking Technique Using Flexible Scaling Factor in Block-Based Wavelet Algorithm

Robust, Secure and Semi-Blind Watermarking Technique Using Flexible Scaling Factor in Block-Based Wavelet Algorithm

High-Quality and Low-Complexity Polar-Coded Radio-Wave Encrypted Modulation Utilizing Multipurpose Frozen Bits

2D Sin-Cos-Henon Map for Color Image Encryption with High Security

Contact Info

Product

Resources

About