47 results on '"Khan, Majid"'
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2. An efficient hybrid encryption model based on deep convolutional neural networks, deoxyribonucleic acid computing and chaotic system
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Iqbal, Nazish, Khan, Majid, Khurshid, Khurram, and Hussain, Iqtadar
- Published
- 2023
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3. A novel dual-layer security scheme based on 3-cell cellular neural network encryption and data hiding scheme for color images
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Said, Lal, Alanazi, Ammar S., and Khan, Majid
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- 2023
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4. An efficient image encryption scheme based on fractal Tromino and Chebyshev polynomial
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Khan, Majid, Alanazi, Ammar S., Khan, Lal Said, and Hussain, Iqtadar
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- 2021
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5. New extension of data encryption standard over 128-bit key for digital images
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Arshad, Sadiqa and Khan, Majid
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- 2021
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6. A novel digital contents privacy scheme based on quantum harmonic oscillator and schrodinger paradox
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Alghafis, Abdullah, Waseem, Hafiz Muhammad, Khan, Majid, Jamal, Sajjad Shaukat, Amin, Muhammad, and Batool, Syeda Iram
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- 2020
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7. An Encryption Scheme Based on Discrete Quantum Map and Continuous Chaotic System
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Alghafis, Abdullah, Munir, Noor, Khan, Majid, and Hussain, Iqtadar
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- 2020
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8. A Novel Image Encryption Technique Based on Generalized Advanced Encryption Standard Based on Field of Any Characteristic
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Khan, Majid and Munir, Noor
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- 2019
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9. A novel chaotic image encryption technique based on multiple discrete dynamical maps
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Khan, Majid and Masood, Fawad
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- 2019
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10. Construction of small confusion component based on logarithmic permutation for hybrid information hiding scheme.
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Khan, Majid, Batool, Syeda Iram, Munir, Noor, and Alshammari, Fahad Sameer
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BOOLEAN functions , *IMAGE encryption , *CRYPTOGRAPHY , *VISUAL cryptography , *BLOCK ciphers , *PERMUTATIONS , *INFORMATION measurement - Abstract
The design and development of secure nonlinear cryptographic Boolean function plays an unavoidable measure for modern information confidentiality schemes. This ensure the importance and applicability of nonlinear cryptographic Boolean functions. The current communication is about to suggest an innovative and energy efficient lightweight nonlinear multivalued cryptographic Boolean function of modern block ciphers. The proposed nonlinear confusion element is used in image encryption of secret images and information hiding techniques. We have suggested a robust LSB steganography structure for the secret hiding in the cover image. The suggested approach provides an effective and efficient storage security mechanism for digital image protection. The technique is evaluated against various cryptographic analyses which authenticated our proposed mechanism. [ABSTRACT FROM AUTHOR]
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- 2023
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11. Construction of multivalued cryptographic boolean function using recurrent neural network and its application in image encryption scheme.
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Abughazalah, Nabilah, Latif, Asim, Hafiz, Muhammad Waseem, Khan, Majid, Alanazi, Ammar S., and Hussain, Iqtadar
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RECURRENT neural networks ,BOOLEAN functions ,IMAGE encryption ,BLOCK ciphers ,NONLINEAR functions ,SIGNAL-to-noise ratio - Abstract
The construction and development of new techniques for a nonlinear multivalued Boolean function is one of the important aspects of modern ciphers. These multivalued Boolean functions need to be defined over various algebraic structures which map multiple inputs on multiple outputs. Modern block ciphers are a combination of linear and nonlinear functions which adds diffusion and confusion capabilities. We have offered an innovative system for the construction of the confusion component of block cipher by using recurrent neural networks. Since the confusion component is a multivalued Boolean function, therefore, we need many to many types of recurrent networks with an equal number of inputs and outputs. With this scheme, we have achieved a standard benchmark nonlinear of 112 with balancednesss having low linear and differential probabilities. We evaluated some common and advanced measures for the eminence of randomness and cryptanalytics to observe the efficiency of the proposed methodology. These outcomes validated the generated nonlinear confusion components are effective for block ciphers and have better cryptographic strength in image encryption with a high signal-to-noise ratio in comparison to state-of-the-art techniques. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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12. A new approach for image encryption and watermarking based on substitution box over the classes of chain rings
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Khan, Majid, Shah, Tariq, and Batool, Syeda Iram
- Published
- 2016
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13. A novel combination of information confidentiality and data hiding mechanism.
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Khan, Lal Said, Khan, Majid, Hazzazi, Mohammad Mazyad, and Jamal, Sajjad Shaukat
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IMAGE encryption ,DATA encryption ,INFORMATION technology security ,MULTIMEDIA systems ,DATA analysis ,CONFIDENTIAL communications - Abstract
Due to the widespread accessibility of the Internet, communicating and sharing multimedia content between people is extremely easy today. At the same time, however, a critical issue is the secure transfer of personal and protected material. In this article, we have proposed a new information security mechanism. The proposed system comprises two phases. In the first phase, the digital data is encrypted and in the second phase, the encrypted data is embedded into the cover data. The encryption scheme consists of both diffusion and confusion. For diffusion, we have utilized a logistic chaotic map-based novel diffusion. For confusion pre-defined highly nonlinear S-boxes are used. This mechanism provides dual layers of security to the confidential information, which makes it difficult for the intruder to extract the confidential information. The security analysis of the encryption and data hiding schemes are carried out and tabulated. For implementation on hardware the time analysis is carried out, and the time for encryption and data hiding comes out to be 1.662 seconds, which is reasonable for real-time implementation. The security analysis of encryption and data hiding shows the immunity of the proposed system to withstand different attacks. [ABSTRACT FROM AUTHOR]
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- 2023
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14. New color image encryption technique based on three-dimensional logistic map and Grey wolf optimization based generated substitution boxes.
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Khan, Hamza, Hazzazi, Mohammad Mazyad, Jamal, Sajjad Shaukat, Hussain, Iqtadar, and Khan, Majid
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IMAGE encryption ,MATHEMATICAL optimization - Abstract
In this paper, highly nonlinear substitution boxes (S-boxes) are generated by utilizing a chaotic map accompanied by the Grey wolf optimization technique. To check their applicability in the encryption scheme, an encryption scheme utilizing a three dimensional (3D) logistic map and the proposed S-boxes for confusion is proposed. The performance analyses of suggested S-boxes are performed and compared with existing techniques. Moreover, security analysis of projected encryption scheme is also performed and tabulated. The results show the strength of the proposed S-boxes in the design of encryption schemes. [ABSTRACT FROM AUTHOR]
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- 2023
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15. New image encryption scheme based on Arnold map and cuckoo search optimization algorithm.
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Khan, Hamza, Jamal, Sajjad Shaukat, Hazzazi, Mohammad Mazyad, Khan, Majid, and Hussain, Iqtadar
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IMAGE encryption ,SEARCH algorithms ,MATHEMATICAL optimization ,CUCKOOS ,DATA privacy - Abstract
Nonlinear confusion component is one of the most important part of any modern cipher. The strength and robustness of modern cryptosystem are subjected to the cryptographic properties of this nonlineaer confusion component namely S-boxes. The principle aim of this article is twofold. Firstly, we have anticipated an innovative approach of producing S-boxes by employing the Cuckoo search algorithm (CSA) an alternative to algebraic and chaotic generation of S-boxes. Secondly, we have also proposed a new encryption technique for information confidentiality of digital color images. The suggested image encryption technique is based on generated S-boxes and Arnold map. The projected information privacy mechanism is verified against a variety of cryptographic characteristics. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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16. A Literature Review on Image Encryption Techniques
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Khan, Majid and Shah, Tariq
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- 2014
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17. Texture Analysis of Chaotic Coupled Map Lattices Based Image Encryption Algorithm
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Khan, Majid, Shah, Tariq, and Batool, Syeda Iram
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- 2014
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18. A Novel Statistical Analysis of Chaotic S-box in Image Encryption
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Khan, Majid and Shah, Tariq
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- 2014
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19. A New Image Encryption Technique Based on Sine Map, Chaotic Tent Map, and Circulant Matrices.
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Shamsa Kanwal, Inam, Saba, Hajjej, Fahima, Cheikhrouhou, Omar, Nawaz, Zainab, Waqar, Ayesha, and Khan, Majid
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IMAGE encryption ,CIRCULANT matrices ,INTERNET security ,SIGNAL-to-noise ratio ,STATISTICAL correlation - Abstract
Image encryption is one of the sensitive areas used recently to save information over the Internet and confirms the security on a higher level. A new cryptosystem has been proposed for the encoding and decoding of images using sine map, chaotic tent map, and circulant matrices. The process involves three stages. The sine map is used for the permutation phase. In the substitution phase, the Hill cipher method together with prime circulant matrix are used and a chaotic tent map is used in the diffusion phase. The algorithm becomes impenetrable to resist differential- and statistical-type attacks. The algorithm's key space is sufficient in size to withstand brute-force attacks. This symmetric image encryption algorithm indicates good results for correlation analysis, key space analysis, entropy analysis, key sensitivity analysis, histogram analysis, number of pixel change rate (NPCR), unified average changing intensity (UACI), and peak signal-to-noise ratio (PSNR). From all these simulation results, we come to know that the constructed image encryption cryptosystem is systematic and vigorous, supplying better protection for image encryption. [ABSTRACT FROM AUTHOR]
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- 2022
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20. Retraction Note: A novel image encryption technique based on Hénon chaotic map and S8 symmetric group.
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Khan, Majid and Shah, Tariq
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IMAGE encryption - Abstract
This document is a retraction note for an article titled "A novel image encryption technique based on Hénon chaotic map and S8 symmetric group." The article has been retracted by the editor-in-chief and the publisher due to concerns raised during an investigation. These concerns include citations that do not support the claims made in the text, non-standard phrasing, and image irregularities. The author, Majid Khan, disagrees with the retraction. The original article can still be found online. [Extracted from the article]
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- 2024
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21. Retraction Note: Construction of S-box based on chaotic Boolean functions and its application in image encryption.
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Khan, Majid, Shah, Tariq, and Batool, Syeda Iram
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BOOLEAN functions , *IMAGE encryption - Abstract
This document is a retraction note for an article titled "Construction of S-box based on chaotic Boolean functions and its application in image encryption." The article has been retracted by the editor-in-chief and the publisher due to concerns found during an investigation, including unsupported citations, non-standard phrasing, and image irregularities. The author Majid Khan disagrees with the retraction, and the publisher has been unable to contact the other authors. The original article can still be found online. [Extracted from the article]
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- 2024
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22. Atmospheric Convection Model Based Digital Confidentiality Scheme.
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Munir, Noor, Khan, Majid, Hazzazi, Mohammad Mazyad, Aljaedi, Amer, Jamal, Sajjad Shaukat, and Hussain, Iqtadar
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ATMOSPHERIC models ,INFORMATION technology security ,DIGITAL images ,WEB-based user interfaces ,NONLINEAR dynamical systems ,DATA security ,IMAGE encryption ,LORENZ equations - Abstract
Nonlinear dynamics is a fascinating area that is intensely affecting a wide range of different disciplines of science and technology globally. The combination of different innovative topics of information security and high-speed computing has added new visions into the behavior of complex nonlinear dynamical systems which uncovered amazing results even in the least difficult nonlinear models. The generation of complex actions from a very simple dynamical method has a strong relation with information security. The protection of digital content is one of the inescapable concerns of the digitally advanced world. Today, information plays an important role in everyday life and affects the surroundings rapidly. These digital contents consist of text, images, audio, and videos, respectively. Due to the vast usage of digital images in the number of social and web applications, its security is one of the biggest issues. In this work, we have offered an innovative image encryption technique based on present criteria of confusion and diffusion. The designed scheme comprises two major nonlinear dynamical systems. We have employed discrete fractional chaotic iterative maps to add confusion capability in our suggested algorithm and continuous chaotic Lorenz system. We have verified our offered scheme by using statistical analysis. The investigations under the statistical tests suggested that our proposed technique is quite reasonable for the security of digital data. [ABSTRACT FROM AUTHOR]
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- 2022
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23. Image encryption scheme for multi-focus images for visual sensors network.
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Khan, Majid, Khan, Lalsaid, Hazzazi, Mohammad Mazyad, Jamal, Sajjad Shaukat, and Hussain, Iqtadar
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SENSOR networks ,IMAGE sensors ,IMAGE fusion ,IMAGE encryption ,SPECTRAL imaging ,DETECTORS - Abstract
Image fusion is the technique to obtain an image, possessing spatially and spectrally enhanced as compared to the individual high spatial and high spectral images. After obtaining a detailed image, propagation over an insecure channel is a critical issue to address. In this article, we have projected an image encryption structure for the fused image resulted from the multi-focus sensors. The projected scheme offered confusion as well as diffusion, which are the core parts of any symmetric cryptosystem. The projected cryptosystem has been tested against various security analysis and tabulated. The Number of Pixel Change Rate (NPCR) and Unified Average Change Intensity (UACI) are 99.62 and 33.49 shows the strength of the proposed encryption against differential attacks. For real-time implementation the time analysis is performed, for image fusion and encryption the algorithm only takes 1.268 s which makes it suitable for real-time implementation. The analysis is compared with the existing state-of-the-art techniques. The designed system is capable of obtaining spectrally and spatially enhanced image from multi-focus images and provide a high level of security. [ABSTRACT FROM AUTHOR]
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- 2022
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24. A dual layer security scheme for medical images using Hessenberg and singular value decompositions.
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Elmoasry, Ahmed, Khan, Lal Said, Khan, Majid, and Hussain, Iqtadar
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SINGULAR value decomposition ,IMAGE encryption ,DIAGNOSTIC imaging ,INFORMATION theory ,DATA encryption ,TELECOMMUNICATION systems - Abstract
Due to the recent advancement in the field of the Internet of Medical things (IoMT). To facilitate doctors and patients, in the process of diagnosis and treatment, the medical imaging equipment is connected to the IoMT. During communication over the network, these medical images are subjected to various threads. In this work, we have proposed a dual-layer data confidentiality scheme, firstly it encrypts the secret medical images followed by a data hiding scheme. The encryption scheme possesses diffusion and confusion, for confusion the encryption scheme utilizes logistic and tent maps for the generation of S-boxes. For data hiding, it utilizes Hessenberg and singular value decomposition (SVD). The proposed scheme is applied to highly correlated medical images. The proposed technique provides dual security to the confidential information and makes it difficult for the intruder to extract the confidential information. The encryption scheme is evaluated by using the standard performance indicators including statistical analysis, differential analysis, and NIST analysis, etc. The encrypted images have the highest practically achievable entropy of 7.999 which is closest to the ideal value of 8. The data hiding scheme is evaluated by using statistical analysis, Distance-based analysis, analysis based on pixel difference, and information theory. Both the analysis of encryption and data hiding are satisfactory and the results show the strength of the dual-layer security scheme. [ABSTRACT FROM AUTHOR]
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- 2022
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25. Cryptanalysis and Improvement of Novel Image Encryption Technique Using Hybrid Method of Discrete Dynamical Chaotic Maps and Brownian Motion.
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Munir, Noor, Khan, Majid, Al Karim Haj Ismail, Abd, and Hussain, Iqtadar
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BROWNIAN motion ,IMAGE encryption ,CRYPTOGRAPHY ,WIENER processes ,GINGERBREAD ,STATISTICS - Abstract
Recently, an encryption technique depending on discrete dynamical chaotic maps and Brownian motion was offered. The authors of the understudy cryptosystem claim the security of encryption structure by some statistical analysis. We report cryptanalysis of a recently proposed scheme by using some cryptographic attacks. The attacks performed in this work are chosen-plaintext attack, known-plaintext attack, and chosen-ciphertext attack. The offered procedure is cryptanalyzed by taking just one chosen-plain image, one chosen-cipher image, and only one pair of plaintext and ciphertext, which shows the scheme's vulnerability. Moreover, we have offered an improved cryptosystem depending on the Basin chaotic map, Gingerbread man map, and Brownian motion, providing a robust security level. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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26. An efficient image encryption scheme based on double affine substitution box and chaotic system.
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Khan, Majid, Jamal, Sajjad Shaukat, Hazzazi, Mohammad Mazyad, Ali, Khawaja Muhammad, Hussain, Iqtadar, and Asif, Muhammad
- Subjects
- *
IMAGE encryption , *NONLINEAR dynamical systems , *ALGORITHMS , *AFFINE transformations , *DATA privacy , *ONLINE banking - Abstract
Privacy of information is one of the most important and unavoidable issues in our digitally advance era. A huge amount of information transmitted over different servers and networking protocols. The sphere of digitally advanced world is tied with information in different forms of facilitations, which includes online banking systems, ecommerce and many more. Providing the ease of access, anything online makes our confidential information open to different threats. Therefore, to enjoy ease of access and at the same time secure our digital information from theft, we need a robust information security system. In this article, we have designed a novel and an efficient security system, which provides secrecy to our digital information. The designed encryption scheme is fundamentally a combination of chaos and nonlinear confusion components. We have developed a new mechanism of adding confusion, namely S 8 permutation of double affine transformation to construct 40320 new substitution boxes (S-boxes) having nonlinearity 112 from a single S-box. Moreover, nonlinear Lorenz dynamical system is utilized to select any three S-boxes from 40320 newly generated nonlinear components. To add diffusion in our proposed algorithm, we have utilized Chirikov discrete iterative map. The excellence of an offered digital image encryption has been examined and evaluated with standard benchmarks. The simulation results reveal that the quality of the image encryption passes all these tests and is comparable to current benchmarks. • Privacy of information is one of the most important and unavoidable issues in our digitally advance era. • A huge amount of information transmitted over different servers and networking protocols. • The sphere of digitally advanced world is tied with information in different forms of facilitations, which includes online banking systems, ecommerce and many more. • In this article, we have designed a novel and an efficient security system, which provides secrecy to our digital information. • We have developed a new mechanism of adding confusion, namely S8 permutation of double affine transformation to construct 40320 new substitution boxes (S-boxes) having nonlinearity 112 from a single S-box. • To add diffusion in our proposed algorithm, we have utilized Chirikov discrete dynamical system. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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27. Pauli Half Spinning and Elliptic Curve Based Information Confidentiality Mechanism.
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Arshad, Sadiqa, Khan, Majid, and Hussain, Iqtadar
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FINITE state machines , *IMAGE encryption , *DATA security , *COMPUTER scientists - Abstract
The use of digital contents has increased tremendously in this modern era. In fact, people spend more time on internet than ever which urged the computer scientists and mathematicians to develop new techniques for data security during transmission and when data is at rest. To cover a digital content is not a one-size-fits all type solution, in fact it requires multiple techniques. In this article we have used elliptic curves, finite state machines, Pauli spin half matrices for image encryption. Elliptic curve discrete log problem makes it difficult for the adversary to extract any information about the key. To authenticate the robustness of the system against cryptographic attacks several statistical analyses are performed. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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28. Cryptanalysis of hybrid secure image encryption based on Julia set fractals and three-dimensional Lorenz chaotic map.
- Author
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Munir, Noor, Khan, Majid, Jamal, Sajjad Shaukat, Hazzazi, Mohammad Mazyad, and Hussain, Iqtadar
- Subjects
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IMAGE encryption , *CRYPTOGRAPHY , *FRACTALS , *LORENZ equations , *MULTIPLICATION - Abstract
Recently a hybrid secure image encryption scheme based on Julia set and three-dimensional Lorenz chaotic system was suggested. The offered scheme was based on the multiplicative operation carried out by Julia set fractals and bitwise XOR which was implemented by the trajectories obtained from the Lorenz chaotic system. This paper presents the cryptanalysis of the scheme through a chosen-plaintext attack by taking three different chosen images. In this work, a practical chosen-plaintext attack is performed which reveals that the cryptosystem depending on only multiplication and bitwise XOR operation can be effortlessly attacked. The results of the analysis performed on the retrieved image reflect the effectiveness of the chosen-plaintext attack which fruitfully produces the original image. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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29. An encryption scheme based on chaotic Rabinovich-Fabrikant system and S8 confusion component.
- Author
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Alghafis, Abdullah, Munir, Noor, and Khan, Majid
- Subjects
IMAGE encryption ,BLOCK ciphers ,NONLINEAR dynamical systems ,SYMMETRY groups - Abstract
In this research article, we have proposed a novel image encryption scheme for the confidentiality of digital information. The modern block ciphers based on confusion and diffusion characteristic, as proposed by Claude Shannon in 1949. Firstly, we have designed a nonlinear confusion component of a block cipher and apply the action of symmetry group S
8 to generate a pool of 40,320 substitution boxes with the same cryptographic strength. These nonlinear components are responsible for adding confusion in the encryption algorithm. Secondly, we have utilized a nonlinear chaotic dynamical system to add diffusion capability in our proposed encryption scheme. The suggested scheme is further examined under security performance evaluations, which shows the appropriateness of our offered scheme for digital contents. [ABSTRACT FROM AUTHOR]- Published
- 2021
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30. A novel combination of information hiding and confidentiality scheme.
- Author
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Khan, Majid, Jamal, Sajjad Shaukat, and Waqas, Umer Aziz
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LORENZ equations ,CONFIDENTIAL communications ,DIGITAL media ,IMAGE encryption ,CRYPTOGRAPHY - Abstract
Due to exponential technological advancement, secure transmission of multimedia content is a serious challenge. These days, securing and hiding digital information most efficiently is the focus of the digital computer world. Information confidentiality and information hiding namely steganography, are the most promising techniques that can protect digital information. In this paper, a combination of encryption and steganography is used efficiently to have a double level of security to achieve confidentiality, privacy, secrecy in addition to integrity and authentication. Firstly, encryption parameters are set by using a chaotic Lorenz system (CLS), then by using CLS encryption parameter encryption is performed on the secret image. This enciphered confidential digital medium is inserted in the cover image by using the least significant bits (LSBs) steganographic scheme. Due to the double level of security, it is hard for an eavesdropper to attack the proposed scheme. All experimental and simulation results verify the efficiency of the proposed information hiding scheme. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
31. A novel hybrid encryption scheme based on chaotic Lorenz system and logarithmic key generation.
- Author
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Tariq, Sundas, Khan, Majid, Alghafis, Abdullah, and Amin, Muhammad
- Subjects
IMAGE encryption ,ONLINE databases ,DIGITAL images ,STATISTICS ,SECURITY systems ,SENSITIVITY analysis - Abstract
The digital information is transmitted through different communication channels with ease within no time. The sphere of digital world is evolving and become one of the key aspects of our daily lives. In this regard, confidentially to this digital information which are fundamentally transmitted over insecure line of communication is one of the mandatory concerns. This digital information is placed in different databases available online. In this article, our aim is to perform cryptanalysis of Logarithmic based image encryption scheme and investigate its potential key leakages by utilizing public key to recover its private key. Moreover, we have suggested chaos-based Logarithm scheme which is more secure. The Lorenz system is utilized in an anticipated mechanism which is sensitive to initial conditions and chaotic parameters. The proposed scheme is then authenticated by using available security performance benchmarks. To measure the security against different cryptographic attacks, we utilized the statistical analyses which are entropy and the correlation between the pixels, and the differential analyses which are number of changing pixel rate (NPCR) and the unified averaged changed intensity (UACI). In order to resist the brute force attacks, key sensitivity analyses and key space analyses is also performed. The randomness of proposed encryption scheme investigated through entropy and NIST randomness suit tests. An application on digital images is investigated. Also, we have compared our modified confidentiality scheme with existing benchmarks which suggested our encryption technique is quite reasonable for digital multimedia security. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
32. Secure image encryption scheme based on fractals key with Fibonacci series and discrete dynamical system.
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Khan, Majid, Masood, Fawad, and Alghafis, Abdullah
- Subjects
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IMAGE encryption , *DYNAMICAL systems , *DISCRETE systems , *ALGORITHMS - Abstract
In this article, our aim is to design a new and efficient digital information confidentiality mechanism. We have offered an encryption scheme which is based on fractals and multiple chaotic iterative maps in order to add more confusion and diffusion capability. Due to randomness nature and unique repetitive pattern of fractal increases key space to hundreds of bits and enhance security level of proposed cryptosystem. The projected algorithm is authenticated by utilizing security performance analyses. The security performances elucidate that our suggested technique is quite competent for digital image encryption. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
33. Galois Ring GR23,8 Dependent 24×24 S-Box Design: An RGB Image Encryption Application.
- Author
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Shah, Tariq, Ali, Asif, Khan, Majid, Farooq, Ghazanfar, and de Andrade, Antonio Aparecido
- Subjects
IMAGE encryption ,COLOR image processing ,MAXIMAL subgroups ,BLOCK ciphers ,FINITE fields ,BOOLEAN functions ,BLOCK designs - Abstract
An S-box is based on Boolean functions which are essentially the foundation of symmetric cryptographic systems. The Boolean functions are used for S-box designing in block ciphers and exploited as nonlinear components. Boolean functions with optimal nonlinearity and upright cryptographic stuffs play a significant role in the design of block ciphers. Traditionally 8 × 8 S-box is a 16 × 16 look up table over Galois field G F 2 8 and has 112 feasible upper bonds for nonlinearity. A 24 × 24 S-box over Galois field G F 2 24 is not viable as the computer memory does not support it. In this paper for the construction of 24 × 24 S-box a rout is adopted via maximal cyclic subgroup of the multiplicative group of units of Galois ring G R 2 3 , 8. The newly constructed S-box has much higher confusion capability than any of 8 × 8 S-box. To judge the impact of this new 24 × 24 S-box an RGB color image encryption application is demonstrated. Initially, in the proposed encryption scheme we use 24 × 24 S-box for confusion in RGB channels of plain image, however for diffusion linear permutation P = i × 32 mod 257 is operated and then by the use of exclusive-or an encrypted image is obtained. Thus, we introduce a novel technique by which 24 binary bits are divided into 3 bytes and each one deals R, G and B channel of the color image separately. A comparison with chaos and DNA based image encryption schemes shows the performance results of this novel RGB image encryption and observed as meeting the standard optimal level. Hence this 24 × 24 S-box dependent encryption method replaces 8 × 8 S-box based RGB color image encryption scheme. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
34. A new watermarking scheme based on Daubechies wavelet and chaotic map for quick response code images.
- Author
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Waqas, Umer Aziz, Khan, Majid, and Batool, Syeda Iram
- Subjects
IMAGE encryption ,DIGITAL watermarking ,BLOCK ciphers ,WAVELET transforms ,DIGITAL communications ,WEB-based user interfaces - Abstract
The world is evolving due to fast transmission of digital information in the forms of different digital contents over numerous online web applications. The transmission of information over social media is at its peak. The advanced means of different digital applications make our lives quite easy but it added more sensitivity to our digital information which can accessed through internet. In the advanced digital era, the protection of digital information and intellectual properties of any organizations is one of the vital problems in technologically advanced ages. To protect the illegal access and duplication of any digital information over insecure communication is fall in the copyright protection techniques. The digital watermarking which is one of the fundamental classes of information hiding techniques that can be used to protect the ownership of any digital contents. Generally, the digital contents cannot be altered in information hiding schemes but secret information is embedded in information carriers. The perception of this article is to design a new digital watermarking scheme which uses multi-layer of information security algorithms. We have utilized chaotic logistic map in order to generate a nonlinear component of block cipher and then applied the suggested substitution box (S-box) in order to encrypt a quick response code (QR-code). Moreover, our innovative suggested watermarking scheme uses Daubechies wavelet transform which is an efficient multi-determination frequency domain for the insertion of encrypted digital logo in the form of QR-codes. We have used different strength analysis which clearly authenticates the validity of our anticipated watermarking scheme. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
35. A novel image encryption scheme based on quantum dynamical spinning and rotations.
- Author
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Khan, Majid and Waseem, Hafiz Muhammad
- Subjects
- *
IMAGE encryption , *QUANTUM theory , *CRYPTOGRAPHY , *INTERNET security , *DATA encryption - Abstract
Quantum information processing made a tremendous and remarkable impact on number of classical mechanic’s problems. The impact does not only stop at classical mechanics but also the cyber security paradigm. Quantum information and cryptography are two classes of quantum information processing which use the idea of qubits instead of bits as in classical information security. The idea of fast computations with multiple complexity level is becoming more realistic in the age of quantum information due to quantum parallelism where a single quantum computer does allow to compute hundreds of classical computers with less efforts and more accuracy. The evolution of quantum information processing replaces a number of classical mechanic’s aspects in computational and cyber security sciences. Our aim here is to introduce concepts of applied quantum dynamics in cryptography, which leads to an evolution of quantum cryptography. Quantum cryptography is one of the most astonishing solicitations of quantum information theory. To measure the quantum state of any system is not possible without disturbing that system. The facts of quantum mechanics on traditional cryptosystems lead to a new protocol and achieving maximum remarkable security for systems. The scope of this paper is to design an innovative encryption scheme for digital data based on quantum spinning and rotation operators. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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36. Image privacy scheme using quantum spinning and rotation.
- Author
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Waseem, Hafiz Muhammad, Khan, Majid, and Shah, Tariq
- Subjects
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IMAGE encryption , *ROTATIONAL motion , *QUANTUM computing , *PUBLIC key cryptography , *IMAGE - Abstract
Privacy of information is one of the utmost vital issues in the epoch of digitally advanced communication. Privacy of information can be achieved through confidentiality, which is one of the most important pillars in information security. There are varieties of protocols and algorithms either symmetric or asymmetric claiming maximum security depending on key lengths, rounds, S-boxes, etc. Modern systems are based on mathematical and logical functions, and their algorithms are based on the fundamental process of factoring large integers into their primes. With the passage of time, there have been advancements in the field to show that, if the key length is not enough, substitution boxes are not too strong, or rounds of encryption are few, then the designed encryption scheme is vulnerable to threats. We have established a scheme using quantum spinning and rotation that is applied to both symmetric and asymmetric cryptographies with minimum key space and that provides maximum security. Our scheme is purely based on rotation of phases that adds a concept in quantum cryptography. The scope of this paper is to cover the fundamental concepts of spins 1/2 matrices (Pauli's matrices) and their general rotation operators as applied to asymmetric systems. © 2018 SPIE and IS&T [DOI: 10.1117/1.JEI.27.6.063022] [ABSTRACT FROM AUTHOR]
- Published
- 2018
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37. A novel construction of substitution box for image encryption applications with Gingerbreadman chaotic map and S8 permutation.
- Author
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Khan, Majid and Asghar, Zeeshan
- Subjects
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IMAGE encryption , *PERMUTATIONS , *CHAOS theory , *REAL-time computing , *PARAMETER estimation - Abstract
In this communication, we present a technique to synthesize resilient nonlinear mechanisms for the construction of substitution box. The proposed nonlinear component assists in transforming the intelligible message or plaintext into an enciphered format by the use of Gingerbreadman chaotic map and S8 permutations. The proposed substitution box is sensitive to the initial conditions provided to the chaotic system, which are subsequently used as parameters in creating an instance. The simulation results show that the use of the proposed substitution box to image encryption scheme provides an efficient and secure way for real-time communications. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
38. A new approach for image encryption and watermarking based on substitution box over the classes of chain rings.
- Author
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Khan, Majid, Shah, Tariq, and Batool, Syeda
- Subjects
IMAGE encryption ,DIGITAL image watermarking ,DIGITAL communications ,DATA security ,CHAOS theory ,SECURITY systems - Abstract
The meanings of passing information from one side to other side by a conventional way is been changed because of internet and communication technology. The issues of the security and the uprightness of information increase due to fast developments in digital world. Presently digital communication has become an important part of transmission of information securely. There are various internet applications which are utilized to convey covertly. As an outcome, the security of data against unapproved access has turned into a prime target. This leads to parts of advancement of different systems for information hiding. Cryptography and watermarking are famous techniques for hiding information accessible to conceal information safely. Our main goal here is to develop an innovative algebraic structures for the construction of nonlinear components of block cipher namely substitution boxes (S-boxes); and also use these components in image encryption and watermarking applications. Different types of S-boxes were introduced in literature based on Galois field and chaos theory in order to add confusion in any cryptosystems. The present construction is entirely based on Galois ring which enrich the existing algebraic structures of S-box theory. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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39. Construction of S-box based on chaotic Boolean functions and its application in image encryption.
- Author
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Khan, Majid, Shah, Tariq, and Batool, Syeda
- Subjects
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BOOLEAN functions , *IMAGE encryption , *CRYPTOGRAPHY , *PERMUTATIONS , *MATHEMATICAL models of diffusion - Abstract
In numerous encryption frameworks, the first information is changed into encoded form by applying nonlinear substitutions and affecting diffusion. The goal of the nonlinear change is to accomplish high level of randomness in the image content. The choice of the source of randomness is critical because the success in cryptanalysis is demarked by the characteristics identified in the encrypted data. The chaotic frameworks show random conduct that is suitable for encryption applications where nonlinear transformations are needed in the middle of plaintext and the scrambled information. The application of nonlinear functional chaos-based system with embedded chaotic systems and binary chaotic sequences can prompt randomness and diffusion in the information. In addition to the high state of randomness, the requirement for various round keys is needed in a run of the mill substitution-permutation process. The proposed strategy kills the requirement for different round keys, which is suitable for high-speed communication frameworks. The measurable analyses performed on the proposed nonlinear algorithm which show improvement in encryption quality and safety against numerous brute-force and statistical attacks. Also, the proposed framework demonstrates high safety against differential and linear cryptanalysis. [ABSTRACT FROM AUTHOR]
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- 2016
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40. A novel image encryption using Fourier series.
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Khan, Majid
- Subjects
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IMAGE encryption , *DATA encryption , *DIGITAL image processing , *FOURIER analysis , *FOURIER series - Abstract
In this paper, a technique is presented to synthesize resilient nonlinear mechanisms used for image encryption. The proposed nonlinear component assists in transforming the intelligible message or plain image into a ciphered image by the use of Fourier series. Experiments are performed by taking a standard picture to authenticate the strength of the proposed algorithm. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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41. Differential cryptanalysis of diffusion and confusion based information confidentiality mechanism.
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Munir, Noor, Khan, Majid, Hussain, Iqtadar, and Amin, Muhammad
- Subjects
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MULTIMEDIA systems , *CRYPTOGRAPHY , *IMAGE encryption , *MULTIMEDIA communications , *CONFIDENTIAL communications , *WIRELESS communications - Abstract
Wireless multimedia communications have progressed significantly in recent years. As a result, there is an increasing demand for more secure media transmission to protect multimedia information. Image encryption systems have been presented throughout the years, but those based on chaotic maps are the most secure and trustworthy due to the inherent properties in such types of multimedia contents involving the pixels strong correlation and data handling capacities. In this research, we have performed differential cryptanalysis of a recently suggested cryptosystem based on a three dimensional (3D) logistic map and 3D Cat map. The originally proposed approach was based on diffusion and confusion strategy. The vulnerabilities in the understudy cryptosystem lead to the successful proposed cryptanalysis attack. The original ciphers are recovered by means of a chosen-plaintext attack. The recovered data is also subjected to some statistical analysis to check the quality. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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42. An efficient chaotic image encryption scheme.
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Khan, Majid and Shah, Tariq
- Subjects
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CHAOS theory , *IMAGE encryption , *NONLINEAR systems , *MATHEMATICAL models , *REAL-time computing - Abstract
In this communication, we have presented a technique to synthesize resilient nonlinear mechanisms for the construction of substitution box for image encryption that utilizes a multiplicative group of nonzero elements of Galois field of order 256. The proposed nonlinear component assists in transforming the intelligible message or plaintext into an enciphered format by the use of exponential and Tinkerbell chaotic maps. The proposed substitution box is sensitive to the initial conditions provided to the chaotic system, which are subsequently used as parameters in creating an instance. The simulation results show that the use of the proposed substitution box to image encryption scheme provides an efficient and secure way for real-time communications. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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- View/download PDF
43. An efficient image privacy scheme based on nonlinear chaotic system and linear canonical transformation.
- Author
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Arshad, Usman, Khan, Majid, Shaukat, Sajjad, Amin, Muhammad, and Shah, Tariq
- Subjects
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IMAGE encryption , *CANONICAL transformations , *LINEAR systems , *NONLINEAR systems , *LORENZ equations , *DIGITAL images , *HISTOGRAMS , *CHAOS synchronization - Abstract
Making information invulnerable is one of the most critical issues of today's era where information is being sent from one source to another destination with expeditious rates. In this research article, linear canonical transform (LCT) along with Lorenz differential equation is subjected for the process of double image encryption for its inherent characteristics which implies the diffusion and confusion of current era. In the contemplated method standard color images; Lena and Pepper of size 256 × 256 are used. Image scrambling, LCT of first order and second order along with Lorenz system are adapted as the steps on encryption process. The reverse process of defined encryption scheme is endorsed for the reformation of the original plain images separately from the single encrypted image. For quality assessment of the encryption scheme; different security and statistical analysis are performed and histograms of all the images are analyzed. As a result, statistical assessments recommended that our contemplated scheme is legitimate for the security of digital images. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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44. A novel image encryption technique using hybrid method of discrete dynamical chaotic maps and Brownian motion.
- Author
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Khan, Majid, Masood, Fawad, Alghafis, Abdullah, Amin, Muhammad, and Batool Naqvi, Syeda Iram
- Subjects
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IMAGE encryption , *BINARY sequences , *DIGITAL images , *CRITICAL currents , *INFORMATION technology security , *BROWNIAN motion , *WIENER processes - Abstract
Information security is an important and critical subject of the current digital era. Nowadays, almost all information is digital in nature and security from hackers and eavesdroppers has become vital in civil (big giant corporations) as well as in defense organizations. One type of information in bit streams is in the form of digital images. In this article, an idea to combine Brownian motion with ternary unique orientation has been implemented which is related to random motion over time and spatial coordinates. Moreover, chaotic dynamical map has been used to add one more security level to the proposed encryption scheme. The proposed scheme is evaluated on different statistical tests and these results are compared with already existing benchmarks. The results show that the proposed algorithm has better security performances as compared to existing image enciphering schemes. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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45. A New Efficient Digital Image Encryption Based on Inverse Left Almost Semi Group and Lorenz Chaotic System.
- Author
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Younas, Irfan and Khan, Majid
- Subjects
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DIGITAL images , *IMAGE encryption , *INFORMATION retrieval , *ALGORITHMS , *STATISTICAL correlation - Abstract
In this research article, we propose a new structure namely inverse left almost semigroup (LA-semigroup) by adding confusion in our proposed image encryption scheme along with discrete and continuous chaotic systems in order to complement the diffusion characteristics. The performance analysis was conducted in terms of the correlation analysis, the pixels uniformity analysis, the sensitivity analysis, the information entropy analysis, and pixels difference based measurements. The results show that the proposed algorithm has better information security properties, which can provide strong security and a high performance. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
46. An efficient image encryption scheme based on chaotic and Deoxyribonucleic acid sequencing.
- Author
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Alghafis, Abdullah, Firdousi, Faiza, Khan, Majid, Batool, Syeda Iram, and Amin, Muhammad
- Subjects
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DNA , *IMAGE encryption , *SIGNAL-to-noise ratio , *CYTOSINE , *ADENINE , *NUCLEOTIDES , *RANDOM numbers - Abstract
In this research article, we have designed a novel image encryption scheme based on Deoxyribonucleic acid (DNA) and chaotic sequencing. We have studied sequences of different genes consisting of four bases, Adenine (A), Cytosine (C), Thymine (T) and Guanine (G), also known as nucleotides which are the fundamental code of life. The purpose of DNA is to store, copy and transmit the genetic information of the living organism. The proposed image encryption scheme uses the chaotic system to generate random sequences and to choose between two or more options. The image is totally transformed by first encoding it into DNA nucleotides, shuffling to achieve diffusion and then substitution is performed to achieve confusion. Then later the DNA fusion operation is performed on the DNA image and the DNA complements are applied on the resulting DNA image, a random number of times to break the residual correlation between the pixels. The cipher image has been tested to fulfill all the standard benchmarks to be categorized as a good ciphered image which includes entropy, correlation coefficient, Pearson's chi square, peak signal to noise ratio, mean square error, mean absolute error, structure similarity indexed measures, differential analysis and histogram uniformity test. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
47. A hybrid cryptosystem for digital contents confidentiality based on rotation of quantum spin states.
- Author
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Alghafis, Abdullah, Waseem, Hafiz Muhammad, Khan, Majid, and Jamal, Sajjad Shaukat
- Subjects
- *
QUANTUM states , *ROTATIONAL motion , *DATA privacy , *CONFIDENTIAL communications , *INFORMATION technology security , *QUANTUM computing , *QUANTUM gates , *NANOELECTRONICS - Abstract
The security of secret information becomes one of global issue in digitally advanced age. Several new digital information forms are now available because of advancement in multimedia tools and applications. In this article, we have projected an efficient digital contents confidentiality technique based on spinning half algebra. We have simulated the image pixels with spin half states sequence for defined range of phase to create confusion capability in our anticipated information confidentiality mechanism. The scope of this article revolved around the development of hybrid information privacy scheme based on the notions of quantum spinning and rotation states effectively. • Our idea here in this research article to utilized a new scheme based on quantum spinning and rotation operator for data privacy and secrecy which is one of the fundamental issue of modern era of science and technology. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
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