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44th Annual International Cryptology Conference on Advances in Cryptology (CRYPTO)

作者： Nakagawa, Kohei Onuki, Hiroshi NTT Social Informat Labs Minato City Japan Univ Tokyo Bunkyo City Japan

ISBN: (纸本)9783031683879;9783031683886

In 2023, Basso, Maino, and Pope proposed FESTA (Fast encryption from Supersingular Torsion Attacks), an isogeny-based public-key encryption (PKE) protocol that uses the SIDH attack for decryption. In the same paper, they proposed parameters for that protocol, but the parameters require high-degree isogeny computations. In this paper, we introduce QFESTA (Quaternion Fast Encapsulation from Supersingular Torsion Attacks), a new variant of FESTA that works with better parameters using quaternion algebras and achieves IND-CCA security under QROM. To realize our protocol, we construct a new algorithm to compute an isogeny of non-smooth degree using quaternion algebras and the SIDH attack. Our protocol relies solely on (2, 2)-isogeny and 3-isogeny computations, promising a substantial reduction in computational costs. In addition, our protocol has significantly smaller data sizes for public keys and ciphertexts, approximately half size of the original FESTA.

关键词： encryption algorithms

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PERFORMANCE ANALYSIS OF CRYPTOGRAPHIC algorithms FOR CLOUD SECURITY 2

PERFORMANCE ANALYSIS OF CRYPTOGRAPHIC ALGORITHMS FOR CLOUD S...

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International Conference on Inventive Communication and Computational Technologies (ICICCT)

作者： Vennela, G. Sai Varun, N. Venkata Neelima, N. Priya, L. Sai Yeswanth, J. VR Siddhartha Engn Coll Dept Informat Technol Vijayawada Andhra Pradesh India VR Siddhartha Engn Coll Dept IT Vijayawada Andhra Pradesh India

ISBN: (纸本)9781538619742

Cloud generally relates to storing, processing and managing of data over a network. The cloud provides mainly three services, storage as a service, platform as a service and software as a service using internet, based on the user's demand. As it became a vital platform, many companies are building their infrastructure. This has increased the corresponding vulnerabilities and threats as these services are often provided by third parties. So, security of the information in the cloud is a noteworthy issue for the cloud client. On the other hand, Performance of the security-based algorithms is another major concern. So, the work plan is to analyze the efficiency of these algorithms, based on the encryption time, decryption time, encryption throughput and memory utilized for encryption by the algorithms for different sizes of file formats like text, image and video. Further, eliminating the privacy concerns of data stored in cloud by enhancing the security using encryption algorithms like DES,3DES,AES and BLOWFISH.

关键词： Cloud Computing encryption algorithms Data Privacy Performance analysis encryption Throughput encryption Memory AES Blowfish

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Reviewing Crypto-Agility and Quantum Resistance in the Light of Agile Practices

Reviewing Crypto-Agility and Quantum Resistance in the Light...

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24th International Conference on Agile Software Development (XP)

作者： Marchesi, Lodovica Marchesi, Michele Tonelli, Roberto Univ Cagliari Dept Math & Comp Sci Cagliari Italy

ISBN: (纸本)9783031485497;9783031485503

The term crypto-agility means the ability to quickly and securely change cryptographic algorithms and related data, in the case of their compromise. In this context, the advent of quantum computing constitutes a new paradigm, which poses existential threats to current cryptographic algorithms. Even if these attacks are not an imminent danger, we must be prepared to change the cryptographic algorithms at risk with new, quantum resistant ones. This is by no means an easy task, because cryptographic algorithms are used everywhere and are often also implemented on the hardware. In this paper, we analyze the similarities and the differences between traditional agility and crypto-agility, and investigate the prospects of using agile and lean practices in the context of crypto-agility to introduce quantum resistant algorithms. In particular, for the main agile and lean practices we discuss if and how they can be useful for obtaining crypto-agility. We also investigate how the features key to crypto-agility can be helped by the agile and lean approach.

关键词： Agile methods Cryptographic agility encryption algorithms Quantum resistance

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Large Integer Decomposition encryption Algorithm for Computer Network Data Communication Combined with Double BP Neural Network Combination Model

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Procedia Computer Science 2023年 228卷 609-618页

作者： Dengjun Li Shujie Xiong Gang Yuan Jiangxi Provincial Party School Jiangxi Institute of Administration Nanchang Jiangxi 330000 China Jiangxi Electric Vocational Technical College Nanchang Jiangxi 330000 China

Usually a complete computer network system has the following components: source of signals, signal host, cryptographic regime, attack, and interceptor. It is more vulnerable to attacks during the operation of the system, so the security of the system becomes more important. In this paper, by constructing a dual BP neural network combinatorial model and applying it to the computer data communication large integer decomposition encryption process, the constructed model is used to analyze the security against digital certificates, digital signatures, and the algorithms employed in the communication process of connected computer network.

关键词： Computer Networks Dual BP Neural Network Combinatorial Model Digital Signatures encryption algorithms

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Some Graph Based encryption Techniques

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IAENG International Journal of Applied Mathematics 2024年第12期54卷 2727-2734页

作者： Narayan, H Dhanvanth Bhat, Surekha Ravishankar Bhat, Ravishankar Bhat, Smitha Ganesh Department of Mathematics Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal576104 India Department of Mathematics Milagres College Kallianpur Karnataka Udupi574111 India Department of Mathematics Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal576104 India Department of Mathematics Manipal Institute of Technology Manipal Academy of Higher Education Karnataka Manipal576104 India

In today’s fast-evolving technological environment, ensuring confidentiality is of utmost importance. Cryptography stands as a critical discipline in safeguarding information from unauthorized access. It employs various encryption algorithms to secure data effectively. As digital threats evolve, there’s a growing demand for unconventional encryption methods to counter traditional cyber-attacks. This paper introduces innovative encryption algorithms leveraging special graphs and public key cryptography techniques, enhancing security through modular arithmetic properties and enabling more robust communication safeguards. A partition V1, V2,…, Vk of the vertex set V is called a chromatic partition of G if each Vi, 1 ≤ i ≤ k is an independent set of G. The minimum order of a chromatic partition of G is called chromatic number χ(G). A chromatic partition of G is called an ordered partition if |V1| = β0 and |Vi| = β0(V − ∪j=1i Vj ). The order of a minimum ordered chromatic partition of G is called ordered chromatic number χ1(G). It is immediate that χ1(G) ≥ χ(G). In this paper we extend Nordhaus Gaddum results to ordered chromatic number. © (2024), (International Association of Engineers). All Rights Reserved.

关键词： encryption algorithms

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A Novel Effective Framework for Medical Images Secure Storage Using Advanced Cipher Text Algorithm in Cloud Computing

A Novel Effective Framework for Medical Images Secure Storag...

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IEEE International Conference on Imaging Systems and Techniques (IST)

作者： Praveen, S. Phani Sindhura, S. Madhuri, A. Karras, Dimitrios A. PVPSIT Dept Comp Sci & Engn Vijayawada AP India KoneruLakshmaiah Educ Fdn Dept Comp Sci & Engn Vaddeswaram AP India Natl & Kapodistrian Univ Athens NKUA Dept Gen Fac Sci Athens Greece

ISBN: (纸本)9781728173719

Cloud computing is one of the emerging technologies in present world. Many cloud computing services such as data storage, data usage and other types of services are available. Medical images storage is most widely used in many hospitals because storing of medical images is significant task. Security plays the major role in cloud computing storage, especially for privacy sensitive medical imaging data. Cloud storage gives security for every file available in the relevant cloud server. To access the data from cloud, various encryption and decryption algorithms are available. In this paper, the Advanced Cipher-text Algorithm (ACTA) is introduced to provide extra security needed tools for the privacy sensitive medical images in cloud. Storing efficiently in a secure way medical images is a computationally involved task because of the complexity due to high image resolution. In the herein conducted experimental study the results obtained show the promising performance of the proposed algorithm.

关键词： medical images security data storage cloud computing encryption algorithms ACTA

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Employing Quantum Mechanics for Quantum Cryptography

Employing Quantum Mechanics for Quantum Cryptography

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International Conference on Computational Science and Computational Intelligence (CSCI)

作者： Abhanu, Rasika Aruigu, Naveen Bale, Sowmya Beeram, Geethanjali Bhattu, Zurendra Sai Raj Mahmoud, Mohammed Clark Univ Sch Profess Studies Worcester MA 01610 USA Univ Jamestown Dept Comp Sci Jamestown ND USA

ISBN: (纸本)9798350361513;9798350372304

Quantum cryptography is a field of study that explores the use of quantum mechanics to create new cryptographic techniques that are more secure than traditional cryptography. With the advancement of quantum computing technology, the security of many commonly used encryption algorithms is at risk. Quantum cryptography offers a potential solution to this problem by providing a method for secure communication based on the principles of quantum mechanics. In this paper, we will provide an overview of the fundamental concepts of quantum mechanics, their relevance to cryptography, and the most widely used quantum cryptography protocol, Quantum Key Distribution. The paper also examines the security and limitations of Quantum Key Distribution. The paper concludes with a summary of findings and implications for the future of cryptography and information security.

关键词： Quantum cryptography quantum mechanics quantum computing encryption algorithms Quantum Key Distribution (QKD)

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Security Data Management Process and its Impact on Smart Cities' Wireless Sensor Networks

Security Data Management Process and its Impact on Smart Cit...

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Conference on South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media (SEEDA-CECNSM)

作者： Antonopoulos, K. Petropoulos, Ch. Antonopoulos, Ch. P. Voros, N. S. TEI Western Greece Comp & Informat Engn Dept Antirio Greece

ISBN: (纸本)9786188331402

During the last few years critical advancements in Wireless Sensor Networks (WSNs) have highlighted respective platforms as a prominent technology able to tackle various challenges posed by Smart-City application scenarios. However, a critical area that has not been adequately taken into consideration concerns security provision necessity in conjunction to its impact on real WSN platform communication efficiency. Consequently, specific practices must be defined in alignment with, up to date, regulations and legislation. In this paper, a two-fold contribution is made. On one hand, a comprehensive study is presented focusing on practices that a real WSN must follow so as to comply with the current security and privacy regulations and legislations. On the other hand, a system level evaluation is presented emphasizing on the effect of security algorithms utilization upon the behavior and performance of a prominent real WSN environment. This evaluation is based on experimentations using a prominent WSN platform enabling algorithms offering high level security features while varying a wide range of critical network parameters.

关键词： Wireless Sensor Networks Performance Evaluation encryption algorithms Security Privacy and Authentication

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Enhancing Protection Techniques of E-Banking Security Services Using Open Source Cryptographic algorithms

Enhancing Protection Techniques of E-Banking Security Servic...

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14th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD)

作者： Khelifi, Adel Aburrous, Maher Abu Talib, Manar Shastry, P. V. S. ALHOSN Univ Software Engn Dept Abu Dhabi U Arab Emirates Zayed Univ Coll Technol Innovat Abu Dhabi U Arab Emirates Coll Engn Elect & Telecomm Dept Pune 411052 Maharashtra India

ISBN: (纸本)9780769550053

security and the privacy features concerning e-banking needs to be improved rapidly to continue its growing. It is really difficult to ensure enough adequate security by using the conventional algorithms for a long time period, due to recent advances such as high progress in cryptanalysis techniques, improvement of computing skills and continuous hacking trials. This paper refers important issues regarding how to enhance the transition to more secure cryptographic and encryption algorithms in the financial sector. This paper recommends that adopting and implementing open source applications following international standards can be considered as a good replacement to the conventional algorithms to offer more enhancement security techniques and highest performance encryption algorithms for e-banking transaction services. We proposed a modified algorithm for AES, in which substitute byte, shift row will remain as in the original AES while mix column operation is replaced by 128 permutation operation followed by add round key operation. Comparative study with traditional encryption algorithms is shown the superiority of the modified algorithm and its high ability to overcome the problem of computational overhead. We additionally suggested another level of e-banking security services using Confidence Building Metric (CBM). The CBMs are computed based on certain parameters and can be implemented on any platform at the client side.

关键词： e-banking security open source software Advanced encryption Standard (AES) cryptography encryption algorithms

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Security Necessity and its Impact on Smart Cities' Wireless Sensor Networks

Security Necessity and its Impact on Smart Cities' Wireless ...

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Conference on South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media (SEEDA-CECNSM)

作者： Antonopoulos, K. Petropoulos, Ch. Antonopoulos, Ch. P. Voros, N. S. TEI Western Greece Comp & Informat Engn Dept Antirio Greece

ISBN: (纸本)9786188331402

During the last few years critical advancements in Wireless Sensor Networks (WSNs) have highlighted respective platforms as a prominent technology able to tackle various challenges posed by Smart-City application scenarios. Through their communication paradigm and platform versatility WSNs are able to meet increasingly demanding communication requirements. However, a critical area that has not been adequately taken into consideration concerns security provision necessity in conjunction to its impact on real WSN platform communication efficiency. Actual deployment of WSNs in the context of Smart-Cities' scenarios implies the handling of personal and sensitive information. Consequently, specific practices must be defined in alignment with, up to date, regulations and legislation. At the same time offering the required security level implies the use of demanding techniques and algorithms which must pose acceptable performance burden on the platform thus negatively affecting the overall communication efficiency. In this paper a two-fold contribution is made aiming to enhance in-depth understanding on the two aforementioned aspects of security provision. Therefore, on one hand a comprehensive study is presented regarding soft issues of security provision focusing on practices that a real WSN must follow so as to comply with respective regulations and legislations. On the other hand, a comprehensive system level evaluation is undertaken and presented emphasizing on the effect of state-of-the-art security algorithms utilization upon the behavior and performance of a prominent real WSN environment. This evaluation is based on experimentations using a prominent WSN platform enabling algorithms offering high level security features while varying a wide range of critical network parameters. Without a doubt both aspects offer significant conclusions and insight that on-going and future WSN deployments must take into consideration when aiming to be used in real Smart City deploy

关键词： Wireless Sensor Networks Performance Evaluation encryption algorithms Security Privacy and Authentication

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