Asymmetric double image encryption, compression and watermarking scheme based on orthogonal-triangular decomposition with column pivoting

• Autorzy: Anjana Savita , Rakheja Pankaj , Yadav Ak , Singh Phool , Singh Hukum

Identyfikatory

DOI

10.37190/oa220210

• Języki publikacji: EN

Abstrakty

EN

A novel asymmetric scheme for double image encryption, compression and watermarking based on QR decomposition in the Fresnel domain has been presented. The QR decomposition provides a permutation matrix as a ciphertext, and the product of orthogonal and triangular matrix as a key. The ciphertext obtained through this process is a sparse matrix that is compressed by the CSR method to give compressed encrypted data, which when combined with a host image, gives a watermarked image. Thus, a cryptosystem that involves compression and watermarking is proposed. The proposed scheme is validated for grayscale images. To check the efficacy of the proposed scheme, histograms, statistical parameters, and key sensitivity are analyzed. The scheme is also tested against various attacks. Numerical simulations are performed to validate the security of the scheme.

Słowa kluczowe

EN

QR decomposition; Fresnel transform; sparse matrix; asymmetric cryptosystem

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2022
• Tom: Vol. 52, nr 2
• Strony: 283--295
• Opis fizyczny: Bibliogr. 35 poz., rys., tab.

Twórcy

autor

Anjana Savita

• Department of Applied Sciences, The NorthCap University, Gurugram, India, 122017

autor

Rakheja Pankaj

• Department of Computer Science Engineering, The NorthCap University, Gurugram, India, 122017

autor

Yadav Ak

• Department of Mathematics, Central University of Haryana, Mahendergarh, India, 123031

autor

Singh Phool

• Department of Mathematics, SoET, Central University of Haryana, Mahendergarh, India, 123031

autor

Singh Hukum

• Department of Applied Sciences, The NorthCap University, Gurugram, India, 122017

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