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International Conference on Computing, Communication, and Intelligent Systems (ICCCIS)

作者： Indrani Das Sanjoy Das Subrata Sahana Ashwini Kumar Department of Computer Sc. Assam University India Department of Computer Sc. Indira Gandhi National Tribal University-RCM India Dept. of Computer Sc. And Engg. Sharda Univesity Uttarpradesh Dept. of Computer Sc and Engg. Graphic Era University Dehradun India

ISBN: (纸本)9781728148274

The growing use of networking in almost every possible field, data transferring or data sharing has become an essential need. All kinds of users directly or indirectly involved in data transfer. But data transferring is susceptible to various risks i.e. hacking of potential data, tempering, etc. Various services based on data sharing or transferring across the network needs security and reliability of the system. Most of the stakeholders may not be fully aware about the fact that their communication is unsecure. Users are relying upon the system they are using and assume that their ongoing communication is secure. Generally, data categorized into text and image messages. There are many works on securing of text message through encryption has been achieved in last decades. But securing images are differs in many ways from that because text. Nowadays, securing image is necessary and quite in demand. In this paper, we have proposed an image encryption algorithm to secure image while being transmitted in two layers.

关键词： encryption Image Security Decryption Shuffling cryptography images Image Decryption Imagery (Psychotherapy) Data Sharing TWO-LAYER Shuffle data transmission Security encryption algorithm Secure Computer hacking Text Messages

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encryption Techniques for Cloud Data Confidentiality

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INTERNATIONAL JOURNAL OF GRID AND DISTRIBUTED COMPUTING 2014年第4期7卷 11-20页

作者： Soofi, Aized Amin Khan, M. Irfan Fazal-e-Amin Govt Coll Univ Coll Comp Sci & Informat Studies Faisalabad Pakistan King Saud Univ Coll Comp & Informat Sci Riyadh Saudi Arabia

Cloud computing is one of the fastest growing internet based technology that facilitates users to utilize services by making use of large poll of resources without installation of any software. Adoption of this technology is increasing rapidly because of many advantages including reduction of cost and IT load. Despite the popularity of cloud computing, it faces many difficulties such as security that is one of the major inhibitors in the growth of cloud computing. Data confidentiality is at the top of the list of security concern for this technology. Many methods have been introduced to overcome this issue;encryption is one of them and widely used method to ensure the data confidentiality in cloud environment. In this study, an attempt is made to review the encryption techniques used for the data confidentiality. The results of review are classified on the basis of type of approach and the type of validation used to validate the approach.

关键词： Cloud data security Data concealment Data encryption encryption algorithm

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Double image encryption based on the random fractional transform

Double image encryption based on the random fractional trans...

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IET International Radar Conference 2015

作者： X. J. Kang F. Zhang L. Y. Xu Y. S. Zhang Y. B. Li School of Information and Electronics Beijing Institute of Technology Beijing 100081 China School of Mathematics and Statistics Beijing Institute of Technology Beijing 100081 China

This paper proposes a method for double image encryption based on a proposed random fractional transform. Firstly, we produce a pseudorandom sequence to randomize the eigenvalue of the discrete fractional Fourier transform based on logistic map. Secondly, a random matrix is produced based on two-dimension logistic map. Then, the eigenvector of the proposed random matrix is used to replace the eigenvector of the discrete fractional Fourier transform. At the last, we present a double image encryption algorithm based on the proposed random fractional transform. Numerical simulations have been performed to verify the efficiency of the proposed algorithm.

关键词： Double image encryption Fractional Fourier transform Logistic map Random fractional transform Logistic map Fourier Transform Eigenvector discrete Fourier transform cryptography Transform Random encryption algorithm DOUBLE Imagery (Psychotherapy) Image images

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Image encryption using a Modified Pseudo-Random Generator

Image Encryption using a Modified Pseudo-Random Generator

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Emerging Trends in Information Technology and Engineering (ic-ETITE), Conference on

作者： Brijgopal Bharadwaj J Sairabanu School of Computer Science Engineering Vellore Institute of Technology Vellore India

ISBN: (数字)9781728141428

ISBN: (纸本)9781728141435

This paper presents a new image encryption algorithm, that accepts an initial secret key and an initialization vector, to produce the encryption/decryption keys using a modified pseudo-random generator. This key is used to encrypt the input images using an XOR cipher. The mathematical inability of the attacker to determine the values of the seeds, due to their logical discreteness from the output of the pseudorandom generator, and thus the encryption algorithm, is the key feature that ensures the security of the algorithm. The proposed algorithm is used to encrypt the standard test images, and the obtained results are scrutinized with respect to the following metrics - histogram, correlation, entropy, NPCR, and UACI. Theoretical and experimental analyses are performed to justify the performance and security offered by the proposed algorithm.

关键词： pseudo-random generator symmetric key image encryption histogram analysis correlation analysis entropy analysis NPCR UACI statistical attacks NPCDR1 gene Symmetric Key encryption algorithm Pseudorandom Correlation analysis Generator dynamos images

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Reliability of Information Conversion When Encrypting Graphic Images 1

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International Workshop on Advanced in Information Security Management and Applications, AISMA 2023

作者： Ishchukova, Evgeniya Borlakov, Radmir Southern Federal University Rostov-on-Don Russia

ISBN: (数字)9783031772290

ISBN: (纸本)9783031772283

The article examines the influence of the initial image parameters on the result of its encryption for different encryption algorithms and modes of their use. Graphic files of the *.ppm format is used as research objects, having various characteristics: color or monochrome image, a graphic or photographic image, large or small resolution, an image of one object or many small ones, the presence of foreign inserts (steganocontainers), the presence of a background in the image, the absence of a background in the image and other. The research methods used are encryption standards DES, AES and GOST R34.12-2015 (Magma and Kuznyechik algorithms), which are implemented in the context of two modes: electronic codebook mode and block chaining mode. It is shown that the original content of graphic information directly affects the level of information mixing when using encryption in ECB mode. To check the quality of encrypted information, NIST tests were used to determine the properties of pseudo-random sequences. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： AES cryptography DES encryption algorithm encryption mode Graphical Information Kuznyechik Magma

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Performance Evaluation and Analysis of encryption Schemes for Wireless Sensor Networks

Performance Evaluation and Analysis of Encryption Schemes fo...

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Digitization (ICD), 2019 International Conference on

作者： Amar Abdelmalek Ghehioueche Noureddine Chikouche Fares Mezrag Computer Science Department University of M 'sila Algeria

ISBN: (数字)9781728138411

ISBN: (纸本)9781728138428

Wireless sensor networks (WSNs) technology is one of the most important technologies of the Internet of things. It is effectively applied within several applications in the actual world, including health care, environmental monitoring, tracking, etc. WSNs consist of small sensor nodes having limited resources. The communication between the components of WSNs is unsecured though. Therefore, in order to secure the exchanged data, it is crucial to implement efficient and lightweight cryptographic schemes. In this paper, we evaluate the performance of different cryptosystems for WSNs. Our paper includes a comparison study between the studied encryption algorithms in terms of power consumption, required space memory, and computational time.

关键词： wireless sensor networks private-key encryption public-key encryption simulation private key cryptography Wireless sensor networks Public key encryption Performance Evaluation cryptography encryption algorithm simulating Internet of things computational time

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QUATERNION GYRATOR TRANSFORM AND ITS APPLICATION TO COLOR IMAGE encryption

QUATERNION GYRATOR TRANSFORM AND ITS APPLICATION TO COLOR IM...

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IEEE International Conference on Image Processing

作者： Zhuhong Shao Jiasong Wu Jean Louis Coatrieux Gouenou Coatrieux Huazhong Shu Laboratory of Image Science and Technology School of Computer Science and Engineering Southeast University 210096 Nanjing China INSERM U1099 Rennes F-35000 France Institut Mines-Telecom Telecom Bretagne INSERM U1101 Latim Brest F-29238 France

ISBN: (纸本)9781479923427

The gyrator transform has been proposed in optics a few years ago. By using the theory of quaternion numbers, this paper presents the quaternion gyrator transform (QGT). It is shown that the QGT can be computed via the left-side type of quaternion Fourier transforms. The new transform is applied to color image encryption for validation, where the rotation angles are used as encryption keys making it more secure compared to a recent method using discrete quaternion Fourier transforms (DQFTs). Experimental results show that the proposed encryption algorithm for color image performs as well as the DQFTs method in terms of noise robustness, so that it could be a useful tool for color image encryption.

关键词： Quaternion gyrator transform color image encryption cryptography color image ROTATION ANGLE Quaternion encryption algorithm Noise robustness gyrators

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Data Security algorithm for Public Decision Support System Based on Blockchain Technology 5

Data Security Algorithm for Public Decision Support System B...

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5th International Conference on Industrial IoT, Big Data and Supply Chain, IIoTBDSC 2024

作者： Yang, Tao Luo, Xiaoli College of Educational Science of Quanzhou Normal University China Zhujiang College Of South China Agricultural University China

ISBN: (纸本)9798331539818

It explores data security algorithms pertinent to public decision-making support systems using blockchain technology in solving core issues of the public decision-making process, such data security, openness, and efficiency. Based on the features of decentralization, tamper-proofing, and encryption of blockchain technology, a framework on data security for public decision support systems could be put forward, including data encryption, digital signature, verification, and implementation of smart contracts. Particular strategies for putting plans into action. By integrating public decision support systems demand analysis, this article develops a security algorithm design centered around blockchain. It demonstrates, through application scenarios and case studies, that this framework has considerable impact on enhancing data security, transparency, and decision-making efficiency. The findings of this study demonstrate the wide range of potential uses for blockchain technology in public management, enhancing data processing credibility and efficiency while meeting stringent security standards for decision-making support systems. © 2024 IEEE.

关键词： blockchain technology data security encryption algorithm public decision support system smart contract

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Image encryption Research based on chaotic sequences and wavelet transform

Image Encryption Research based on chaotic sequences and wav...

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2010 International Conference on Audio,Language and Image Processing(2010年音频、语言与图像处理国际会议 ICALIP 2010)

作者： Runhe Qiu Yuzhe Fu Yun Cao Institute of Information Science and Technology Donghua University Shanghai China

ISBN: (纸本)9781424458561

Using the characteristics of the chaotic system, such as ergodicity, sensitivity to initial condition, system parameters and random like behavior, this paper proposes a new image encryption algorithm based on chaotic sequences and wavelet transform. This algorithm controls the initial parameters of two onedimensional chaotic sequences through keys, generates the chaotic sequence, diffuses the image, and then does wavelet decomposition to the diffused image, finally, scrambles the image using two-dimensional hyper-chaotic sequences. The experimental results show that this algorithm has a good encryption effect and a high security.

关键词： Imagery (Psychotherapy) images wavelets cryptography Image wavelet transforms encryption algorithm Chaotic systems Keys Keys Cays diffused image Sequences

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Accelerating Leveled Fully Homomorphic encryption Using GPU

Accelerating Leveled Fully Homomorphic Encryption Using GPU

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IEEE International Symposium on Circuits and Systems

作者： Wei Wang Zhilu Chen Xinming Huang Department of Electrial and Computer Engineering Worcester Polytechnic Institute MA 01609USA

ISBN: (纸本)9781479934331

Gentry introduced the first plausible fully homomorphic encryption (FHE) scheme, which was considered a major breakthrough in cryptography. Several FHE schemes have been proposed to make FHE more efficient for practical applications since then. The leveled fully homomorphic scheme is among the most well-known schemes. In leveled FHE scheme, large-number matrix-vector multiplication is a crucial part of the encryption algorithm. In this paper, Chinese Remainder Theorem (CRT) is employed to reduce the computational complexity of the large-number element-by-element modular multiplication. The first step is called decomposition, in which each large-number element in the matrix and vector is decomposed into many small words. The next step is vector operation that performs the modular multiplications and additions of the decomposed small words. Finally the matrix-vector multiplication results can be obtained through reconstruction. We compare the CRT-based method with Number Theory Library (NTL), showing the proposed method is about 7.8 times faster when executing on CPU. In addition, it is observed that vector operation takes up to 99.6% of the total computation time and the reconstruction only takes 0.4%. Therefore GPU acceleration is employed to speed up the vector operations. Experiment results show that the GPU implementation of the CRT-based method is 35.2 times faster than the same method implemented on CPU and is 273.6 times faster than the NTL library on CPU.

关键词： fully homomorphic encryption Chinese remainder theorem matrix-vector multiplication CUDA Chinese remainder theorem central processing units Homomorphic encryption encryption algorithm GRAPPER PICK UP Graphics Processing Unit Cloning Vectors computational time Scheme Matrix multiplication acceleration Multiplication

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