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arXiv 2024年

作者： Jurkiewicz, Mariusz Prabucka, Kamila Military University of Technology Warsaw Poland

In this paper we construct a new efficient updatable encryption (UE) scheme based on FrodoPKE learning with errors key encapsulation [1]. We analyse the security of the proposed scheme in the backward-leak uni-directional setting within the rand-ind-eu-cpa model. Since the underlying computationally hard problem here is LWE, the scheme is secure against both classical and quantum attacks. © 2024, CC BY-NC-ND.

关键词： encryption algorithms

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Design of Cryptography Algorithm for Data Security of a IoT System

Design of Cryptography Algorithm for Data Security of a IoT ...

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2024 IEEE International Conference on Advanced Telecommunication and Networking Technologies, ATNT 2024

作者： Ni, Lim Chia Ali, Samura Rashid, Rozeha A. University Teknologi Malaysia Faculty of Electrical Engineering Johor Johor Bahru Malaysia

ISBN: (纸本)9798350353501

This research explores the data security of the Internet of Things (IoT), with a specific focus on designing cryptographic algorithms suitable for the resource-constrained ESP32 microcontroller. Referencing existing Advanced encryption Standard (AES) and Data encryption Standard (DES) algorithms, the proposed lightweight block cipher algorithm is specifically tailored for the ESP32 platform. It leverages encryption techniques such as key generation, XOR operations, custom-designed S-boxes, custom-designed P-boxes, and row permutation methods. Understanding the structure of ESP32, the algorithm is designed to align the process data with native word size which takes advantage of optimizing the register operation. Performance analysis was conducted to balance security and execution time. The results indicate that the combination of encryption techniques including key generation, XOR operation, S-box, P-box, and row permutation yields optimal randomness, with nearly 50% of bit changes in the SAC test. The design of the proposed cryptography algorithm is recommended to use four rounds of encryptions, as it passes the SAC test in the fourth round and exhibits the shortest execution time which is 3ms. Implementation on ESP32 confirms its feasibility for Internet of Things (IoT) applications. © 2024 IEEE.

关键词： encryption algorithms

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A Complementary Algorithm for Image Cryptosystems to Enhance Entropy 9

A Complementary Algorithm for Image Cryptosystems to Enhance...

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9th International Conference on Mobile and Secure Services, MOBISECSERV 2024

作者： Cardona-Lopez, Manuel Alejandro Chimal-Eguia, Juan Carlos Silva-Garcia, Victor Manuel Flores-Carapia, Rolando Centro de Investigación en Computación Instituto Politécnico Nacional Mexico City Mexico Centro de Innovación y Desarrollo Tecnológico en Cómputo Instituto Politécnico Nacional Mexico City Mexico

ISBN: (纸本)9798350390896

Each new image cryptosystem aims to achieve improved security results, with entropy being one of the primary measures for quantifying its security. For 8-bit images, the ideal entropy value is 8.0. However, various encryption algorithms typically get values close to this ideal, such as 7.999, but not exactly 8.0. To address this, we propose a complementary algorithm designed to increase the entropy achieved by cryptosystems. This algorithm adds new pixel rows to the encrypted images to achieve a uniform histogram and consequently obtain an entropy value of 8.0. The pixels in these additional rows are assigned the missing intensity values to fit a uniform distribution. To test the proposal, it was applied to four images initially encrypted using the AES-CBC cryptosystem, increasing the entropy from 7.9992 to 8.0 and achieving the highest level of security according to this measure. Although this approach involves a 10% increase in the total number of pixels, it is more efficient compared to other methods that achieve lower entropy values with a larger increase in image size. Finally, this algorithm is compatible with any image cryptosystem for uncompressed images, enhancing their entropy and security. © 2024 IEEE.

关键词： encryption algorithms

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Design and implementation of a security system algorithm based on the combination of improved AES and SHA-512 5

Design and implementation of a security system algorithm bas...

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5th International Conference on Computer Communication and Network Security, CCNS 2024

作者： Si, Jinghua Wang, Liang Liaocheng Technician College Shandong China Shandong Institute of Information Technology Industry Development Shandong China

ISBN: (纸本)9781510681842

With the rapid development of information technology, network security has become an increasingly important focus. As a key means to protect data security, encryption technology is crucial to enhance its security. However, a single encryption technology often has limitations. This study proposes a secure encryption system that combines Advanced encryption Standard (AES) and Secure Hash Algorithm (SHA-512). It introduces the design concept and implementation method of the encryption scheme combining the two algorithms in detail, and conducts an in-depth analysis and evaluation of the system's security. Experimental results show that the system provides high security performance and excellent performance indicators. © 2024 SPIE.

关键词： encryption algorithms

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Enhancing Protection Mechanisms in Data and Application Security Across Diverse Platforms

Enhancing Protection Mechanisms in Data and Application Secu...

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2024 OPJU International Technology Conference on Smart Computing for Innovation and Advancement in Industry 4.0, OTCON 2024

作者： Nijhawan, Ginni Dasari, Kavitha Chandrashekar, Rakesh Vadivukrassi, M. Kalra, Ravi Abdullah, Sajid Abd Al Khidhir Lovely Professional University Phagwara India Institute of Aeronautical Engineering Hyderabad Dundigal India New Horizon College of Engineering Department of Mechanical Engineering Bangalore India St. Martin's Engineering College AP Dept. of Cse Telangana Secunderabad India Lloyd Institute of Engineering & Technology Knowledge Park II Uttar Pradesh Greater Noida201306 India National University of Science and Technology College of Technical Engineering Dhi Qar64001 Iraq

ISBN: (纸本)9798350373783

Secure data protection is more vital than ever as internet dangers proliferate. Five key approaches comprise this study's comprehensive security design. They are the Advanced encryption Algorithm (AEA), DIDS, BBA, BEDI, and AAC. Each algorithm strengthens the security design, defending against several attacks. The system relies on the AEA technique to securely encrypt and decode data. It uses complex cryptography algorithms that focus on key management and rapid modular math to protect secret communication. The DIDS algorithm detects unusual system activity in real time to prevent attacks. It can adapt to changing conditions, leverage topic knowledge, and provide extensive intrusion reports, making it stronger at battling security concerns. Fingerprint data improves user identification, making BBA safer and more customizable. Multiple biometric sources and dynamic template changes make the software more biometric trait resistant. BEDI uses blockchain technology to verify data, creating a permanent, public record. The smart contract application and decentralized agreement procedure make data changes tougher. AAC increases access control by altering the barrier based on user behavior and environment. AAC is usercentered and context-aware because it constantly learns and changes. The study found that the proposed framework outperforms competitors in encryption strength, userfriendliness, detection accuracy, integration complexity, flexibility, and regulatory compliance. The powerful and versatile security solution may be utilized in many contexts. © 2024 IEEE.

关键词： encryption algorithms

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Hypercomplex Numbers in Cryptosystems

Hypercomplex Numbers in Cryptosystems

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International Conference on Current Problems of Applied Mathematics and Computer Systems, CPAMCS 2023

作者： Dukhnich, Evgeny Chefranov, Alexander Admiral Ushakov Maritime State University Novorossiysk Russia Eastern Mediterranean University North Cyprus Famagusta Cyprus

ISBN: (纸本)9783031640094

A systematic analysis of the use of the hypercomplex numbers in the construction of the cryptographic algorithms is given. The cases of constructing various types of ciphers, both symmetric and asymmetric, with the use of hypercomplex numbers of 4, 8, and 16 dimensions are considered. These include determining the complex computational problem underlying the security of the cipher. Among block ciphers, modifications of the Hill and Feistel algorithms are considered. Attention is drawn to the use of involutory matrices in the development of the encryption algorithms. Of the public key systems, the review includes hybrid elliptic curve ciphers, scheme based on the computational quaternion conjugacy problem, and NTRU-type systems based on lattices. The research defines the basic principles for the application of hypercomplex numbers in cryptography. The article can help researchers to get a general view of the ways to solve an identified problem. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： encryption algorithms

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An Overview of the Discrete Logarithm Problem in Cryptography 3rd

An Overview of the Discrete Logarithm Problem in Cryptogr...

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3rd International Conference on Advanced Computing and Applications, ICACA 2024

作者： Sarkar, Abhiroop Guha Roy, Deepsubhra Datta, Piyali Institute of Engineering and Management University of Engineering and Management Kolkata India Institute of Engineering and Management University of Engineering and Management Kolkata India Institute of Engineering and Management University of Engineering and Management Kolkata India

ISBN: (纸本)9789819747986

The discrete logarithm problem is a computationally hard problem that is widely employed in public-key cryptography, based on the assumption that there exists no general method to efficiently solve discrete logs. In this paper, we investigate the historical evolution, theoretical foundations, associated equations, implementation techniques, applications, and security aspects of the discrete logarithm problem. A timeline detailing the early development of discrete logarithms in cryptography is presented. The algorithms deployed to solve discrete logarithm problems, including Shanks’ baby step–giant step algorithm, Pohling–Hellman’s algorithm, Pollard’s Rho algorithm, Pollard’s Kangaroo algorithm, index calculus, and function field sieve, are discussed. Additionally, an overview of Shor’s quantum algorithms is provided. The paper also offers concise discussions of schemes such as Diffie–Hellman key exchange, ElGamal encryption, and elliptic curve cryptography. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： encryption algorithms

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Using Chernoff bound to statistical tests independence checking 11

Using Chernoff bound to statistical tests independence check...

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11th International Scientific Conference "Information Technology and Implementation", IT and I 2024

作者： Kovalchuk, Lyudmila Rodinko, Mariia Oliynykov, Roman Klymenko, Tatiana G.E. Pukhov Institute for Modelling in Energy Engineering General Naumov Str. 15 Kyiv03164 Ukraine V. N. Karazin Kharkiv National University Svobody Sq. 4 Kharkiv61022 Ukraine

In our work, we proposed, a strictly justified, method for testing independence verification and created a corresponding algorithm. We applied this algorithm to different test suits and obtained rather expected results, which indirectly confirms the correctness of our method. As we mentioned above, the proposed methods have several advantages: require fewer sequences, than the method based on approximation with normal distribution, may verify not only pairwise independence, in the most important cases, gives a more precise critical region, than the method based on Chebyshev inequality. Using this method, we show that statistical tests from the widely used suits are independent. In this connection, it is interesting to note that the older version of NIST tests (published in 1999), which consists of more tests than the recent version, turned out to be dependent. There are no explanations from the authors of the updated version, to why they removed some tests, but our very method explained this fairly. © 2024 Copyright for this paper by its authors.

关键词： encryption algorithms

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Improved AES scheme based on chaotic mapping 4

Improved AES scheme based on chaotic mapping

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4th International Conference on Electronic Information Engineering and Computer Communication, EIECC 2024

作者： Dai, Qianmei Liu, Xiaodong Wuhan Post and Telecommunications Research Institute Wuhan China Wuhan Hongxu Information Technology Co. Wuhan China

ISBN: (纸本)9798331534622

As encryption algorithms are widely used, the shortcomings of Advanced encryption Standard (AES) round keys with strong correlation between them have also been found. In this paper, an improved AES scheme based on Logistic mapping and Tent mapping is proposed to use the random sequences generated by the two chaotic mappings to generate the wheel keys, and improve and optimize the original key expansion algorithm, which generates wheel keys without correlation among them, the key space is large enough, and the sequences and wheel keys are different each time, which enhances the ability of AES to withstand attacks. Through the security test analysis of random sequences, it shows that the improved AES can ensure the key expansion algorithm has enough security, solve the problem of wheel key correlation, and realize the effect of one secret at a time. © 2024 IEEE.

关键词： encryption algorithms

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Secure Data Sharing Scheme for Multi-Node Devices 4

Secure Data Sharing Scheme for Multi-Node Devices

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

作者： Ye, Jun Wan, Yitang Wang, Zehua Zhang, Zhengqi Xu, Zheng Zhao, Jinghua School of Cyberspace Security Hainan University Haikou570228 China Key Laboratory of Internet Information Retrieval of Hainan Province Haikou570228 China Shanwei Institute of Technology Shanwei516600 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

For the problem that the communication between maritime devices may be listened to by the adversary, resulting in the data shared between maritime devices may also be tampered with and forged by the adversary, thus jeopardizing the maritime IoT, this paper firstly starts from the wireless sensor network technology which is the most widely used in the maritime IoT, and then selects and designs a lightweight block cipher algorithm for realizing the secure data sharing of the multi-node devices in the maritime IoT. After analyzing the security of the algorithm, it is concluded that this paper's scheme performs well in terms of anti-differential analysis and linear analysis, and is better than PRESENT algorithm in terms of hardware implementation. © 2024 The Authors.

关键词： encryption algorithms

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