A novel chaotic encryption scheme based on efficient secret keys and confusion technique for confidential of DICOM images

Mortajez, Sareh; Tahmasbi, Marziyeh; Zarei, Javad; Jamshidnezhad, Amir

doi:10.1016/j.imu.2020.100396

Cited by 24 publications

(14 citation statements)

References 29 publications

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“…Plain frontal view of the X-ray images, encrypted images, and decrypted images for the normal condition and different lungrelated diseases, including fibrosis (F), inflammation (In), pneumonia (P), pleural effusion (Eff), pneumothorax (Pt), and emphysema (Em), and normal condition (Nor) with 256 (2 8 ) gray-scale levels, if the distribution of gray values is more uniform, the IE index is greater and approaches 8. This index is defined as follows [1,21,44]:…”

Section: Evaluation Of the Decryption Performancementioning

confidence: 99%

“…When a hacker attack makes a minor or major change in encrypted pixels, NPCR and UACI are the indexes used to measure the performance and efficiency against differential hacker attacks. These indexes can be defined as follows [1,43,44]:…”

Section: Evaluation Of the Decryption Performancementioning

confidence: 99%

“…X-ray images constitute the largest percentage in medical images. Digital Imaging and Communication in Medicine (DICOM) [1] is a standard to exchange medical images and their information in the hospital's picture archiving and communication system (PACS), which is used in querying, storing, printing, and transmitting information in imaging. Therefore, digital images can be generated by different medical devices and can also be integrated into the PACS [2][3].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, encrypted images may suffer hacker attacks and slightly differ from the image. Hence, the differential analysis with hacker attacks can be evaluated by the number of pixel changing rate (NPCR) and unified averaged changed intensity (UACI) [1,43,44], which are used to test the number of changing pixels and number of averaged changed intensities between the decrypted and plain images. Differential analysis without hacker attacks can also be evaluated using the index of information entropy (IE) [21,44].…”

Section: Introductionmentioning

confidence: 99%

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Intelligent Symmetric Cryptography With Chaotic Map and Quantum Based Key Generator for Medical Images Infosecurity

Lin¹,

Chen

et al. 2021

IEEE Access

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Medical images can be constructed in two-dimensional (2D) or three-dimensional (3D) view imaging to be applied in disease detection and diagnosis inside the body, such as cancer/tumor, heart, or lung-related diseases. These images may contain patients' privacy information and clinical diagnosis records. Hence, these images need to ensure authorization demands among hospitals, medical service organizations, or physicians in a picture archiving and communication system. This study presents an intelligent symmetric cryptography with a chaotic map and quantum-based key generator (KG) for medical image encryption and decryption. Overall scheme processes include (1) random cipher code generation, (2) training gray relational analysis (GRA)-based encryptor and decryptor, and (3) decrypted image evaluation. The hybrid chaotic map and quantum-based KG are used to increase the chaotic complexity and unpredictable levels to produce cipher codes for changing pixel values (substitution method) in a 2D image by 256 key-space cipher codes. The first and second GRA models are used to train the cipher codes to achieve an encryptor and a decryptor, respectively. Through the methodology validation using a chest X-ray database, the structural similarity index measurement is employed to evaluate the decryption quality between the plain image and decrypted image. The encrypted images show a visual uncorrelation with the plain images, and experimental results indicate higher confidences against the passive eavesdropper.

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Section: Evaluation Of the Decryption Performancementioning

confidence: 99%

Section: Evaluation Of the Decryption Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intelligent Symmetric Cryptography With Chaotic Map and Quantum Based Key Generator for Medical Images Infosecurity

Lin¹,

Chen

et al. 2021

IEEE Access

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“…While the algorithm claims to perform better than other methods, it did not include concrete results for the same through a variety of security and encryption quality metrics, such as Entropy, NPCR, UACI, etc. [ 20 ].…”

Section: Literature Reviewmentioning

confidence: 99%

Analytical Study of Hybrid Techniques for Image Encryption and Decryption

Chowdhary

Patel

Kathrotia

et al. 2020

Sensors

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The majority of imaging techniques use symmetric and asymmetric cryptography algorithms to encrypt digital media. Most of the research works contributed in the literature focus primarily on the Advanced Encryption Standard (AES) algorithm for encryption and decryption. This paper propose an analysis for performing image encryption and decryption by hybridization of Elliptic Curve Cryptography (ECC) with Hill Cipher (HC), ECC with Advanced Encryption Standard (AES) and ElGamal with Double Playfair Cipher (DPC). This analysis is based on the following parameters: (i) Encryption and decryption time, (ii) entropy of encrypted image, (iii) loss in intensity of the decrypted image, (iv) Peak Signal to Noise Ratio (PSNR), (v) Number of Pixels Change Rate (NPCR), and (vi) Unified Average Changing Intensity (UACI). The hybrid process involves the speed and ease of implementation from symmetric algorithms, as well as improved security from asymmetric algorithms. ECC and ElGamal cryptosystems provide asymmetric key cryptography, while HC, AES, and DPC are symmetric key algorithms. ECC with AES are perfect for remote or private communications with smaller image sizes based on the amount of time needed for encryption and decryption. The metric measurement with test cases finds that ECC and HC have a good overall solution for image encryption.

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Software for Analyzing Security for Healthcare Organizations

Magomedov

2021

Communications in Computer and Information Science

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A novel chaotic encryption scheme based on efficient secret keys and confusion technique for confidential of DICOM images

Cited by 24 publications

References 29 publications

Intelligent Symmetric Cryptography With Chaotic Map and Quantum Based Key Generator for Medical Images Infosecurity

Intelligent Symmetric Cryptography With Chaotic Map and Quantum Based Key Generator for Medical Images Infosecurity

Analytical Study of Hybrid Techniques for Image Encryption and Decryption

Software for Analyzing Security for Healthcare Organizations

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