Joint block and stream cipher based on a modified skew tent map

Qumsieh, Rawan; Farajallah, Mousa; Hamamreh, Rushdi A.

doi:10.1007/s11042-019-08112-z

Cited by 10 publications

(7 citation statements)

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“…Table 4 details a comparison at the level of the correlation of our approach with other similar approaches. This shows that our technique is more efficient compared to other algorithms in references [31]- [33]. The obtained results ensure that our crypto-system is immune to statistical attacks.…”

Section: Analysis Of Entropysupporting

confidence: 57%

Improved Vigenere approach incorporating pseudorandom affine functions for encrypting color images

El Bourakkadi,

Chemlal,

Tabti

et al. 2024

IJECE

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This article presents an improvement to the traditional Vigenere encryption method, specifically adapted for the encryption of color images. This enhancement relies on the use of two chaotic maps widely employed in the field of cryptography. After vectorizing the original image and calculating the initialization value, which alters the seeding pixel to trigger the encryption process, our approach integrates two new large substitution tables. These tables are linked to confusion and diffusion functions, incorporating multiple reversible pseudo-random affine functions at the pixel level. Finally, a global permutation is applied to the entire resulting vector to increase the temporal complexity of potential attacks on our system. Simulations conducted on a diverse set of images of various sizes and formats demonstrate the resilience of our approach against any unexpected attacks.

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Section: Analysis Of Entropysupporting

confidence: 57%

Improved Vigenere approach incorporating pseudorandom affine functions for encrypting color images

El Bourakkadi,

Chemlal,

Tabti

et al. 2024

IJECE

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show abstract

“…Histogram of encrypted frame should be more uniform than original frame histogram in order to resist to statistical ysis based attacks [35], [36]. Fig.…”

Section: ) Histogram Analysismentioning

confidence: 99%

Selective Encryption of the Versatile Video Coding Standard

et al. 2022

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Versatile video coding (VVC) is the next generation video coding standard developed by the joint video experts team (JVET) and released in July 2020. VVC introduces several new coding tools providing a significant coding gain over the high efficiency video coding (HEVC) standard. It is well known that increasing the coding efficiency adds more dependencies in the video bitstream making formatcompliant encryption with the standard more challenging. In this paper we tackle the problem of selective encryption of the VVC standard in format-compliant and constant bitrate. These two constraints ensure that the encrypted bitstream can be decoded by any VVC decoder while the bitrate remains unchanged by the encryption. The selective encryption of all possible VVC syntax elements is investigated. A new algorithm is proposed to encrypt in format-compliant and constant bitrate the transform coefficients (TCs) together with other syntax elements at the level of the entropy encoder. The proposed solution was integrated and assessed under the VVC reference software model version 6.0. Experimental results showed that encryption drastically decreases the video quality while the encryption is robust against several types of attacks. The encryption space is estimated in the range of 15% to 26% of the bitstream size resulting in a lightweight encryption process. The web page of this work is publicly available at https://gugautie.github.io/sevvc/.INDEX TERMS Versatile Video Coding, joint crypto-compression, selective encryption, video security.

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“…Histogram of encrypted frame should be more uniform than original frame histogram in order to resist to statistical analysis based attacks [34,35]. Fig.…”

Section: Histogram Analysismentioning

confidence: 99%

Selective Encryption of the Versatile Video Coding Standard

Gautier¹,

FarajAllah²,

Hamidouche³

et al. 2021

Preprint

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Versatile video coding (VVC) is the next generation video coding standard developed by the joint video experts team (JVET) and released in July 2020. VVC introduces several new coding tools providing a significant coding gain over the high efficiency video coding (HEVC) standard. It is well known that increasing the coding efficiency adds more dependencies in the video bitstream making format-compliant encryption with the standard more challenging. In this paper we tackle the problem of selective encryption of the VVC standard in format-compliant and constant bitrate. These two constraints ensure that the encrypted bitstream can be decoded by any VVC decoder while the bitrate remains unchanged by the encryption. The selective encryption of all possible VVC syntax elements is investigated. A new algorithm is proposed to encrypt in format-compliant and constant bitrate the transform coefficients (TCs) together with other syntax elements at the level of the entropy encoder. The proposed solution was integrated and assessed under the VVC reference software model version 6.0. Experimental results showed that the encryption drastically decreases the video quality while the encryption is robust against several types of attacks. The encryption space is estimated in the range of 15% to 26% of the bitstream size resulting in a lightweight encryption process. The web page of this work is available at https://gugautie.github.io/sevvc/.

show abstract

Joint block and stream cipher based on a modified skew tent map

Cited by 10 publications

References 50 publications

Improved Vigenere approach incorporating pseudorandom affine functions for encrypting color images

Improved Vigenere approach incorporating pseudorandom affine functions for encrypting color images

Selective Encryption of the Versatile Video Coding Standard

Selective Encryption of the Versatile Video Coding Standard

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