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检索条件"主题词=Encryption algorithms"

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A High-Security Image encryption Algorithm Based on Chaotic Sequence and Blockchain Technology 4

A High-Security Image Encryption Algorithm Based on Chaotic ...

引用

4th International Conference on Electronic Information Engineering and Computer Science, EIECS 2024

作者： Wu, Guangfu Huang, Le School of Information Engineering Jiangxi University of Science & Technology Jiangxi Ganzhou China

ISBN: (纸本)9798331531409

In this paper, we propose a novel two-dimensional exponential cosine chaotic map based on cosine and exponential functions, alongside the design of a highly sensitive color image encryption algorithm. The algorithm utilizes a cross-channel substitution operation derived from chaotic sequences, integrating blockchain technology and the Secure Hash Algorithm 256 (SHA-256) in the diffusion process. These innovative approaches significantly enhance the robustness and security of image encryption. Experimental results demonstrate that the Pearson correlation coefficient is nearly 0, the information entropy reaches 7.9998, the NPCR is 99.6160%, and the UACI is 33.4134%, all of which affirm the superior security of the proposed algorithm and its resilience against various illegal attacks. © 2024 IEEE.

关键词： encryption algorithms

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Research on the Application of an Improved AES-based encryption Algorithm on a Multi-Protocol Conversion Gateway with Domestic Chip

Research on the Application of an Improved AES-based Encrypt...

引用

2024 IEEE International Conference on Real-Time Computing and Robotics, RCAR 2024

作者： Jiao, Xuyang Shen, Youzhi Li, Jian Yu, Xiuli Zhang, Ying Beijing University of Posts and Telecommunications in Beijing Laboratory of Robotics Mechanism and Cross Innovation China Industry Solutions Group at Phytium Technology Co. Ltd. China

ISBN: (纸本)9798350372601

To ensure data security during the gateway's data uploading process, we introduce the advantages of chaotic mapping to AES. We then develop a multi-protocol encrypted gateway architecture based on an improved AES data encryption algorithm using domestic chips. To enhance the benefits of chaotic mapping, we introduce normalization based on the traditional Logistic mapping to create a new L-Logistic mapping. This expands the range of chaotic mapping. Our experiments demonstrate that the random number series generated by the L-Logistic mapping can pass the frequency and travel tests specified by NIST. The study proposes a composite chaotic AES encryption method that combines the L-Logistic mapping and Chebyshev mapping with AES encryption. This method encrypts data in groups using a single secret. The study found that the composite chaotic AES encryption has a more stable avalanche effect (65±5) compared to the result of 60±10 for AES encryption alone. © 2024 IEEE.

关键词： encryption algorithms

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Design of an Efficient encryption and Decryption Modular Exponentiation for Single Word Size 5

Design of an Efficient Encryption and Decryption Modular Exp...

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5th IEEE Global Conference for Advancement in Technology, GCAT 2024

作者： Sreekar, Ragi Abhinav Sindhoor, S.G. Krishna Sharma, Sarda Chauhan, Sandeep Singh Amrita School of Engineering Department of Electronics and Communication Engineering Bangalore India

ISBN: (纸本)9798350376685

Modular exponentiation (ME) is a mathematical operation that is used for several public-key cryptosystems (PKCs) and other applications. It is a complex task that is an essential computational tool that enables efficient handling of large numbers, especially in cryptography and computer algorithms. Its efficiency is obtained from advanced mathematical techniques like exponentiation by squaring, which is known to reduce computational complexity significantly. In this method, an efficient ME operation i.e. the modular exponentiation method is presented which improves raising any integer x to a power, namely k, and reducing the result to the modulo some integer n. This ME operation is easy to implement on paper but is expensive for resource-constrained devices in terms of the time of computation, energy consumption, etc. To tackle this problem, several different methods of computation have been proposed its implementation efficiently. In this paper, we present the implementation of an efficient ME method for single word size and then implement the method in hardware using Verilog HDL. Then, after implementation, we compare the results of the implementation of our results with two of the most frequently used conventional methods of ME i.e. Montgomery method and the Barret method. The performance parameters like clock cycles, power, and utilization are compared and presented. The low power and faster exponentiation can have potential application in emerging internet of things (IoT) and low power sensor nodes in future. © 2024 IEEE.

关键词： encryption algorithms

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Data Protection in the Era of Big Data Advanced encryption Standard VS Data encryption Standard 2

Data Protection in the Era of Big Data Advanced Encryption S...

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2nd International Conference Computational and Characterization Techniques in Engineering and Sciences, IC3TES 2024

作者： Mageshwaran, M.K. Sri Ramya, P. Saveetha University Saveetha School of Engineering Saveetha Institution of Medical and Technical Sciences Department of Information Technology Tamil Nadu Chennai India Saveetha University Saveetha School of Engineering Saveetha Institution of Medical and Technical Sciences Department of Computer Science and Engineering Tamil Nadu Chennai India

ISBN: (纸本)9798350364699

This research is to seek to know which algorithm between the DES (Data encryption Standard) and AES (Advanced encryption Standard) is faster in encryption and decryption as well as determine which is safer The data set used in this research was an online dataset with a data capacity of one lakh. A program is created to determine which algorithm between AES and DES has a faster encryption and decryption time, it uses a sample size of 20 where 10 for group 1 and 10 for group 2 It is ran through Google colab. The sentiments for the proposed AES are (1. 8/1. 9 seconds for encryption and 1 second for decryption) whereas for DES it is (0. 112/0. 128 seconds for encryption and decryption respectively). This is a showing of the difference between the AES and DES for both encryption and decryption time. The new AES Algorithm for encryption and decryption in the Evaluation of data security in the Big Data has a better scope, safeness, and speed as compared to the DES Algorithm. © 2024 IEEE.

关键词： AES (Advanced encryption Standard) Big Data Data Protection Decryption Time DES (Data encryption Standard) encryption algorithms encryption Time Google Colab Research Dataset Security Measures

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An Enhanced Vigenère encryption Algorithm using 6S-Substitution and 2S-Transposition Technique

An Enhanced Vigenère Encryption Algorithm using 6S-Substitu...

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2024 IEEE International Conference on Data and Software Engineering, ICoDSE 2024

作者： Galeza, Sugar Mae T. Sison, Ariel M. Medina, Ruji P. Graduate Program Technological Institute of the Philippines Quezon City Philippines School of Computer Studies Emilio Aguinaldo College Manila Philippines

ISBN: (纸本)9798331506407

Vigenère encryption algorithm is a classical cryptographic algorithm featuring a polyalphabetic stream cipher, which as numerous limitations pertaining to finding the size and length of the encryption key. This study presents the process of enhancing the Vigenère algorithm using 6S-substitution and 2S-transposition techniques with the novelty of accommodating a 103-character set based on the selected ASCII and Unicode characters. It adopts the three-security metrics such as the degree of diffusion, degree of confusion, and integrity check for measuring the security level. Experiment results showed that the enhanced Vigenère algorithm produced more secure ciphertexts. Using PHP, the proponents tested and simulated ten (10) data sets to ensure the consistency of the results at each security level. The results exhibited a vigorous outcome starting the degree of diffusion output, the original Vigenère yields 1.8% while the enhanced Vigenère obtains 68.75% with an increase of 66.95%. Secondly, the result in the degree of confusion test, the former algorithm results in 1.88%, on the other hand, the latter obtains 53.39% with an increase of 51.51%. In the integrity check, the former gets 2.42% while the latter advances to 57.11%, increasing 54.69%. Thus, it is evident that the test result for the Enhanced Vigenère has a higher percentage than the original Vigenère in providing better security in the ciphertext and improving the overall encryption and decryption processes. © 2024 IEEE.

关键词： encryption algorithms

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Selective encryption Algorithm for Vectoral Geographic Data under Feature Point Grouping Strategy

Selective Encryption Algorithm for Vectoral Geographic Data ...

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2024 Mid-term Symposium on Spatial Information to Empower the Metaverse

作者： Zhou, Qianwen Xiong, Ying Zhu, Changqing Ren, Na Nanjing Normal University Nanjing China Hunan Engineering Research Centre of Geographic Information Security and Application Changsha China

Selective encryption technology is a data security protection method that can balance encryption security and efficiency. Currently, there is ongoing research on applying this technology to vector geographic data. However, existing algorithms often use random selection methods for choosing objects to be encrypted, which results in lower security. To address this problem, we proposed a selective encryption algorithm for vector geographic data based on feature point grouping strategy. The study includes four steps: (1) Based on the user-input encryption ratio, calculate the feature point grouping thresholds for each element in the data. (2) Extract feature point sets for each element based on the grouping threshold. (3) Sort and group the feature point sets, reducing the smallest encryption unit to group objects within individual elements. (4) To reduce encryption costs and enhance the algorithm's resistance to attacks, perform frequency domain coefficient encryption and spatial domain coordinate value encryption in a stepwise manner on the group objects, ultimately producing the encryption results. The experiment showed that: (1) The decrypted encrypted data maintains consistency with the original data coordinates, achieving lossless decryption. (2) The correlation between encrypted data and the original data is significantly disrupted, resulting in a high level of randomness and thereby ensuring the algorithm's robust security. (3) The key space is substantial and highly sensitive, capable of withstanding brute force attacks. (4) The algorithm significantly improves encryption efficiency. (5) The algorithm displays resilience against deletion attacks and noise attacks. In conclusions, the proposed method enhances encryption efficiency while upholding a high level of security, thus it is an efficient selective encryption algorithm for vector geographic data. © Author(s) 2024.

关键词： encryption algorithms

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File encryption and Decryption Application using Elliptic CurveDiffie-Hellman Algorithm and Chaotic Map Function 9th

File Encryption and Decryption Application using Elliptic Cu...

引用

9th International Conference on Computer Science and Computational Intelligence, ICCSCI 2024

作者： Heru, Albert Toshiro Faisal Manalu, Sonya Rapinta Mathematics Department School of Computer Science Bina Nusantara University Jakarta11480 Indonesia Computer Science Department School of Computer Science Bina Nusantara University Jakarta11480 Indonesia

In this modern era, the exchange of information through the internet happens almost constantly. The security of this exchanged information is crucial to prevent unauthorized parties from misusing it. One frequently exchanged form of information is files. In this research, we employed the Elliptic Curve Diffie-Hellman and chaotic map function algorithms to secure files. The results of this study indicate that the Elliptic Curve Diffie-Hellman and chaotic map function algorithms can be used to secure files in the form of text, image, audio, and video by performing file encryption and decryption. We also compared the encryption and decryption times and the resistance level against attacks with methods used by previous researchers. The comparative results show that our method has faster encryption and decryption times, as well as a higher level of resilience. Using the fastest attack method, the Baby-Step, Giant-Step, the author's algorithm demonstrates a resistance level of approximately 2.16× 1011 % greater than Heru et al.'s [7] algorithm. © 2024 The Authors.

关键词： encryption algorithms

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Image encryption Algorithm based on Pseudo-random Sequence 4

Image Encryption Algorithm based on Pseudo-random Sequence

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4th International Conference on Machine Learning and Big Data Analytics for IoT Security and Privacy, SPIoT 2023

作者： Ma, Tengyu Ye, Jun Xu, Zheng Zhao, Jinghua School of Cyberspace Security Hainan University Hainan Province Haikou570000 China School of Computer and Information Engineering Institute for Artificial Intelligence Shanghai Innovation Center of Reverse Logistics and Supply Chain Shanghai Polytechnic University Shanghai201209 China Business School University of Shanghai for Science and Technology Shanghai200093 China

The applications of digital images is widespread in various fields such as medical diagnosis, film production, intelligent transportation, security monitoring, virtual reality and computer vision. The security of image transmission is a widely discussed topic, and ensuring the protection of digital images has become a focal point in Internet security communication. The selection of an algorithm with strong encryption performance holds significant theoretical and practical importance for image transmission. This paper takes the pseudo-random sequence as a starting point and primarily utilizes scrambling operations, the Mersenne rotation algorithm, and operations based on chaotic sequences to explore image encryption algorithms. Firstly, it introduces the encryption principles of these three methods, followed by respective application cases and implementation using MATLAB software. Pseudo-random sequences are employed as tools in all three methods, reo rdering pixel positions according to their order in the pseudo-random sequence during scrambling operation. In the Mersenne rotation algorithm, pseudo-random sequences are used to generate random number seeds. Chaotic sequences are utilized in combination with scrambling operations to achieve image encryption through generating pseudo-random sequences. Finally, after analyzing information entropy, histograms, encryption/decryption times, and adjacent pixel correlations, we select the optimal image encryption algorithm that provides better digital image encryption effects and higher security levels for each application case along with code implementations. © 2024 The Authors.

关键词： encryption algorithms

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Secure Sharing Method of Big Data Based on ECC encryption Algorithm and Casual Transmission 3

Secure Sharing Method of Big Data Based on ECC Encryption Al...

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3rd International Conference on Cloud Computing, Big Data Application and Software Engineering, CBASE 2024

作者： Wang, Shuang Li, Yang Xu, Guang Chen, Wei Gao, Ningning He, Zeyang R&D Center of Travelsky Technology Limited China Shunyi District Tianbei Rd Beijing101310 China

ISBN: (纸本)9798331506582

Due to the large amount of computation required for authentication and matching in the data sharing phase, there is a certain delay in the real-time performance of the corresponding efficiency. Therefore, this paper proposes the research on the security sharing method of big data based on ECC encryption algorithm and casual transmission. After encrypting the shared data by using the point operation and group algorithm in ECC pairing, a digital signature for the shared data is designed;OT (3-out-of-l OT) mechanism is introduced into the sharing protocol to realize the matching of wildcard patterns between two security parties. In the test results, the increase in attribute vector length did not have a significant impact on the computational cost of the data sharing stage. The specific computational cost remained stable within 2.0 ∗ 103 byts, and the sharing time was within 35.0ms. Compared with the control group, it had a significant advantage. © 2024 IEEE.

关键词： encryption algorithms

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Enhancing Security: A Hybrid encryption Algorithm for Effective Key Generation 2

Enhancing Security: A Hybrid Encryption Algorithm for Effect...

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2nd International Conference on Recent Trends in Microelectronics, Automation, Computing, and Communications Systems, ICMACC 2024

作者： Jacob, Jeevan John Kiran, P.S. Shenoy, Jaigovind B Basavaraju, Sagar Amrita School of Computing Department of Computer Science and Engineering Bengaluru India Amrita School of Engineering Department of Electronics and Communication Engineering Bengaluru India

ISBN: (纸本)9798350366570

The abstract Data security is of most importance, in the present day- the introduction of high-level wireless communication channels has led to generation and transfer of massive amounts of data. Data security must keep up with it. Data breach may cause disastrous outcomes. Previously, hardware security modules (HSM) were used to perform cryptographic actions- storing keys and for authentication. This is no longer feasible as HSMs are physical devices and become inconvenient to carry around all the time. The unavailability of HSM poses a serious security threat (for cryptographic keys). This paper aims at a novel software solution that compensates for hardware. As the algorithm focuses on securing keys used for encryption. It may be referred to as key security scheme (KSS). The paper proposes a way to generate keys instead of storing it and assumes performing of cryptographic actions on the available hardware in the system. The proposed method can secure data, both in transit and while at rest. © 2024 IEEE.

关键词： encryption algorithms

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