<p>Conventional encryption techniques frequently show weaknesses against statistical noise, and differential attacks. They can also reveal patterns in encrypted images, endangering confidentiality and encouraging illegal access. As technology advances quickly and security threats inevitably increase, it is critical to protect sensitive images against sophisticated assaults and unauthorized access in order to maintain confidentiality, integrity, and resilience in high-security systems. The motive of this research is to present a solid, effective, and safe method for defending delicate image data from intrusions. The projected symmetric image encryption approach combines many cutting-edge techniques, such as the Arnold Transform, 2D Logistic Chaotic map, row permutation, column permutation, left shuffling, and right shuffling. This method uses left and right shuffling techniques to increase the security of image information in addition to utilizing Arnold transform’s ability to generate strong encryption keys. The recommended method involves two rounds of shuffling after applying the Arnold transform coupled with key 1. Row and column permutations, left and right shuffling, and Key 2 are all part of the first round. Key 3 and row and column permutations are used in the second round of shuffling. Next, restructure the result after converting it to binary. Lastly, the shuffled image and the shuffled sequence created with Key 4 will be subjected to an XOR operation. The attacker or intruder cannot recover any subsequence of the cryptosystem owing to this technique, which uses four keys: key 1(random prime number) for Arnold transform, key 2 for the first round of shuffling, key 3 for the second round of shuffling, and key 4 for creating random sequence. The decoded image can be produced again by the person who knows all four keys in a particular order. The effectiveness of the suggested encryption technique is evaluated by extensive simulation tests, which demonstrate that it outperforms other methods in a range of attacks. To deliver a dependable and effective method for shielding image information, the suggested encryption technique emphasizes boosted security, resilient key generation that is variable, unconventional pixel shifting and protection with many keys. Numerous applications, including financial, medical, and military imaging systems, could benefit from this strategy.</p>

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Secure image encryption via arnold mapping and bidirectional pixel permutation with 2D chaotic sequences

  • R. Girija,
  • Shilpi Gupta

摘要

Conventional encryption techniques frequently show weaknesses against statistical noise, and differential attacks. They can also reveal patterns in encrypted images, endangering confidentiality and encouraging illegal access. As technology advances quickly and security threats inevitably increase, it is critical to protect sensitive images against sophisticated assaults and unauthorized access in order to maintain confidentiality, integrity, and resilience in high-security systems. The motive of this research is to present a solid, effective, and safe method for defending delicate image data from intrusions. The projected symmetric image encryption approach combines many cutting-edge techniques, such as the Arnold Transform, 2D Logistic Chaotic map, row permutation, column permutation, left shuffling, and right shuffling. This method uses left and right shuffling techniques to increase the security of image information in addition to utilizing Arnold transform’s ability to generate strong encryption keys. The recommended method involves two rounds of shuffling after applying the Arnold transform coupled with key 1. Row and column permutations, left and right shuffling, and Key 2 are all part of the first round. Key 3 and row and column permutations are used in the second round of shuffling. Next, restructure the result after converting it to binary. Lastly, the shuffled image and the shuffled sequence created with Key 4 will be subjected to an XOR operation. The attacker or intruder cannot recover any subsequence of the cryptosystem owing to this technique, which uses four keys: key 1(random prime number) for Arnold transform, key 2 for the first round of shuffling, key 3 for the second round of shuffling, and key 4 for creating random sequence. The decoded image can be produced again by the person who knows all four keys in a particular order. The effectiveness of the suggested encryption technique is evaluated by extensive simulation tests, which demonstrate that it outperforms other methods in a range of attacks. To deliver a dependable and effective method for shielding image information, the suggested encryption technique emphasizes boosted security, resilient key generation that is variable, unconventional pixel shifting and protection with many keys. Numerous applications, including financial, medical, and military imaging systems, could benefit from this strategy.