Robustness of the Encryption Algorithm Against Noise Pollution. by Feixian Liu (22477943)

Robustness of the Encryption Algorithm Against Aata Loss. by Feixian Liu (22477943)

Results of for encrypted and original images. by Nasreen Zulfiqar (21601226)

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Results of encryption speed along with a previous studies. by Nasreen Zulfiqar (21601226)

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Encrypted and decrypted images. by Feixian Liu (22477943)

“…Based on the 2D-SQSM, this paper further designs a highly robust color image encryption algorithm. First, by introducing different hash functions multiple times, the correlation between the key and plaintext is enhanced, significantly improving resistance against brute-force attacks; second, cyclic shifting and segmentation-recombination operations are applied separately to the three RGB channels to effectively disrupt pixel distribution and significantly reduce spatial correlation between pixels; finally, the chaotic sequence generated by the 2D-SQSM is utilized for XOR diffusion, further enhancing the randomness and diffusion capability of the ciphertext. …”

Suggested algorithm’s key space along with comparison. by Nasreen Zulfiqar (21601226)

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Comparison of correlation coefficients of adjacent pixels using different encryption methods. by Nasreen Zulfiqar (21601226)

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Image Encryption Flow Chart. by Feixian Liu (22477943)

“…Based on the 2D-SQSM, this paper further designs a highly robust color image encryption algorithm. First, by introducing different hash functions multiple times, the correlation between the key and plaintext is enhanced, significantly improving resistance against brute-force attacks; second, cyclic shifting and segmentation-recombination operations are applied separately to the three RGB channels to effectively disrupt pixel distribution and significantly reduce spatial correlation between pixels; finally, the chaotic sequence generated by the 2D-SQSM is utilized for XOR diffusion, further enhancing the randomness and diffusion capability of the ciphertext. …”

The Rössler attractors in XY plane. by Nasreen Zulfiqar (21601226)

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Decrypted Chair image from by Nasreen Zulfiqar (21601226)

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Correlation distribution for the diagonal orientation of the cipher Chair image. by Nasreen Zulfiqar (21601226)

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Cipher Black image. by Nasreen Zulfiqar (21601226)

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Decoded image of Chair along with the probable secret key from Black image. by Nasreen Zulfiqar (21601226)

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Chair () decrypted image. by Nasreen Zulfiqar (21601226)

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Hailstones () cipher image. by Nasreen Zulfiqar (21601226)

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Decoded image of Chair along with the probable secret key from White image. by Nasreen Zulfiqar (21601226)

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Results of energy analysis. by Nasreen Zulfiqar (21601226)

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The Rössler attractors in 3D. by Nasreen Zulfiqar (21601226)

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Polar histogram of Chair plain image. by Nasreen Zulfiqar (21601226)

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Flower () cipher image. by Nasreen Zulfiqar (21601226)

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