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检索条件"主题词=encryption algorithms"

共 390 条记录，以下是121-130 订阅

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Database encryption using asymmetric keys: a case study 21

Database encryption using asymmetric keys: a case study

引用

21st International Conference on Control Systems and Computer Science (CSCS)

作者： Boicea, Alexandru Raduleseu, Florin Truica, Ciprian-Octavian Costea, Cristina Univ Politehn Bucuresti Comp Sci & Engn Dept Fac Automat Control & Comp Bucharest Romania

ISBN: (纸本)9781538618394

Data security has become an issue of increasing importance, especially for Web applications and distributed databases. One solution is using cryptographic algorithms whose improvement has become a constant concern. The increasing complexity of these algorithms involves higher execution times, leading to an application performance decrease. This paper presents a comparison of execution times for three algorithms using asymmetric keys, depending on the size of the encryption/decryption keys: RSA, ElGamal, and ECIES. For this algorithms comparison, a benchmark using Java APIs and an application for testing them on a test database was created.

关键词： encryption algorithms asymmetric encryption encryption keys encrypted database padding

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Mathematical Backdoors in Symmetric encryption Systems Proposal for a Backdoored AES-like Block Cipher 3

Mathematical Backdoors in Symmetric Encryption Systems <i>Pr...

引用

3rd International Conference on Information Systems Security and Privacy (ICISSP) / International Conference on Security and Cryptography (SECRYPT)

作者： Bannier, Arnaud Filiol, Eric ESIEA Operat Cryptol & Virol Lab 38 Rue Drs Calmette & Guerin F-53000 Laval France

ISBN: (纸本)9789897582097

Recent years have shown that more than ever governments and intelligence agencies try to control and bypass the cryptographic means used for the protection of data. Backdooring encryption algorithms is considered as the best way to enforce cryptographic control. Until now, only implementation backdoors (at the protocol/implementation/management level) are generally considered. In this paper we propose to address the most critical issue of backdoors: mathematical backdoors or by-design backdoors, which are put directly at the mathematical design of the encryption algorithm. While the algorithm may be totally public, proving that there is a backdoor, identifying it and exploiting it, may be an intractable problem. We intend to explain that it is probably possible to design and put such backdoors. Considering a particular family (among all the possible ones), we present BEA-1, a block cipher algorithm which is similar to the AES and which contains a mathematical backdoor enabling an operational and effective cryptanalysis. The BEA-1 algorithm (80-bit block size, 120-bit key, 11 rounds) is designed to resist to linear and differential cryptanalyses. A challenge will be proposed to the cryptography community soon. Its aim is to assess whether our backdoor is easily detectable and exploitable or not.

关键词： Cryptography encryption algorithms Backdoor Trapdoor Cryptanalysis Block Cipher AES

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Evaluating and Optimizing Cryptographic Offloading for IoT Devices: Attribute-Based encryption Case Study 59

Evaluating and Optimizing Cryptographic Offloading for IoT D...

引用

59th Annual IEEE International Conference on Communications (IEEE ICC)

作者： Roy, Sunanda Crowley, Thomas Mark, Brian L. Zeng, Kai Khasawneh, Khaled N. George Mason Univ Fairfax VA 22030 USA

ISBN: (纸本)9798350304060;9798350304053

Computational offloading can provide significant latency and energy savings. However, most computational offloading protocols have been theoretically proposed, with some empirical evidence supporting their effectiveness. In this paper, we implement and critically evaluate a reference computational offloading protocol for attribute-based encryption on small-scale IoT devices at the network's edge. Our analysis led to the development of an enhanced version of the protocol that further reduces latency and energy usage without compromising the original protocol's security standards. Our results show significant savings of up to 30x for latency and 32x for energy consumption using the original protocol, and up to 40x for latency and 42x for energy consumption using our proposed enhancement on the end device.

关键词： encryption algorithms

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The Secure UAV Communication Link Based on OTP encryption Technique 11

The Secure UAV Communication Link Based on OTP Encryption Te...

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11th International Conference on Ubiquitous and Future Networks (ICUFN)

作者： Atoev, Sukhrob Kwon, Oh-Jun Kim, Chee-Yong Lee, Suk-Hwan Choi, Young-Rak Kwon, Ki-Ryong Pukyong Natl Univ Dept IT Convergence & Applicat Engn Busan South Korea Dong Eui Univ Dept Comp Software Engn Busan South Korea Dong Eui Univ Game Animat Engn Busan South Korea Tongmyong Univ Dept Informat Secur Busan South Korea A&C Co Seoul South Korea

ISBN: (纸本)9781728113395

The demand on the security and reliability of the communication and data link of unmanned aerial vehicle (UAV) is much higher since the environment of the modern battlefield is becoming more and more complex. Since the UAV communication link and its reliability evaluation represent an arduous field, we have concentrated our work on this topic. A UAV communication channel is a key factor that can affect the performance of the data link in terms of high data rate and reliable transmission of information. Moreover, the wireless communication channel opens up the door for several types of remote attacks. Therefore, the communication channel between the vehicle and ground control station (GCS) should be secure and has to provide an efficient data link. For this purpose, we have investigated the one-time pad (OTP) encryption technique for a UAV communication system. The comparative results present that OTP has better performance in terms of accuracy and execution time than other encryption algorithms.

关键词： UAV(unmanned aerial vehicle) OTP(one-time pad) GCS(ground control station) encryption algorithms

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Design of Light-weight encryption Algorithm Based on RISC-V Platform 35

Design of Light-weight Encryption Algorithm Based on RISC-V ...

引用

35th IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP)

作者： Zhang, Zekai Cheung, Ray Chak Chung City Univ Hong Kong Hong Kong Peoples R China

ISBN: (纸本)9798350349641;9798350349634

In this work, we aim to design a lightweight encryption algorithm, GIFT, suitable for IoT systems. The design concept of the GIFT lightweight encryption algorithm is based on the PRESENT lightweight encryption algorithm. GIFT has a higher efficiency (in terms of area and timing) than PRESENT, making it one of the most energy-efficient encryption algorithms at present. GIFT can support two kinds of block data simultaneously, 64-bit block data and 128-bit block data, and the key length is 128 bits for both. Pulpino is an IoT platform based on RISC-V lightweight core. Our proposed method can improve the security encryption core used in the original Pulpino platform, reducing its power consumption by 1/4 and resource usage by 1/2. The operating speed of the platform has been greatly improved, and at the same time, more hardware space can be reserved for other applications.

关键词： encryption algorithms

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SEARCH: Symmetric encryption Algorithm Research and Characteristic Hunting 15

SEARCH: Symmetric Encryption Algorithm Research and Characte...

引用

15th International Conference on Communications, COMM 2024

作者： Banu, Teodora-Georgiana Togan, Mihai Military Technical Academy "Ferdinand I" Bucharest Romania

ISBN: (纸本)9798350355956

SEARCH is a Python library that we developed to help cryptanalysts evaluate the security of block ciphers, specifically those based on substitution- permutation networks (SPN), against differential cryptanalysis attacks. The core functionality of SEARCH revolves around the capabilities of Z3 Satisfiability Modulo Theories Solver to solve various constraint systems previously modelled;these systems are created based on the parameters of the SPN, including the s-box and p-box. This modelling process implies defining a set of mathematical constraints that accurately captures the propagation of differences across the network. Through the utilization of this tool, cryptanalysts facilitate the process of identifying optimal differential characteristic, by gaining access to a suite of parametrized functionalities. Among these parameters, the fundamental ones are sbox, p-box and the number of rounds on which the differential cryptanalysis is conducted. SEARCH offers extended capabilities such as generating the optimal characteristic by adding specific constraints such as fixed input or output difference. Furthermore, the tool adds support to solve systems that find the optimal iterative differential characteristics and to refine previously identified differential characteristics to uncover the best differential for the block cipher. Nevertheless, the simplicity of using SEARCH for analyzing SPNs, even for individuals lacking programming proficiency is the differentiating factor that sets this tool apart from other available solutions. By availing SEARCH, we conducted differential cryptanalysis on three lightweight algorithms: Present, Gift-64 and Rectangle. In some scenarios, the probabilities we obtained surpass the ones recognized by scientific papers, demonstrating the consistency up to 14 rounds. This highlights SEARCH's efficacy in evaluating symmetric cryptographic algorithms' security and its reliability and robustness in replicating established results. © 2024 IEEE.

关键词： encryption algorithms

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Image encryption Algorithm-Based Reversible Data Hiding With Triple Des 10

Image Encryption Algorithm-Based Reversible Data Hiding With...

引用

10th International Conference on Advanced Computing and Communication Systems, ICACCS 2024

作者： Kumar, Praveen Bagavathi Anandhan, E. Balamurugan, K. Gowreesh, A.M. Jayanth, N.J. Department of Cse Sri Eshwar College of Engineering Coimbatore India

ISBN: (纸本)9798350384369

The proposed system presents an all-encompassing solution for embedding data within images, while simultaneously maintaining their visual quality. This is achieved through the utilization of the Reversible Data Hiding Algorithm (RRBE). Emphasizing both high data embedding rates and visual integrity, this system incorporates RSA encryption to guarantee data security. Additionally, the Least Significant Bit (LSB) technique is employed to minimize any noticeable distortions. This versatile and efficient approach caters to a broad spectrum of applications where secure and high-capacity data embedding within images is imperative. Consequently, it provides a robust solution to fulfill various data-hiding prerequisites. © 2024 IEEE.

关键词： encryption algorithms

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Secured Multi-Platform Communication Application Using Advanced encryption Standard Algorithm 10

Secured Multi-Platform Communication Application Using Advan...

引用

10th International Conference on Advanced Computing and Communication Systems, ICACCS 2024

作者： Bhatt, Chandradeep Tiwari, Chirag Thalal, Bhupesh Singh Vishnoi, Arpit Joshi, Karan Singh, Teekam Graphic Era Hill University Cse Department Dehradun India Computer Science and Engineering Graphic Era Hill University Dehradun India Computer Science and Engineering Graphic Era Deemed to be University Dehradun India

ISBN: (纸本)9798350384369

Messaging applications have been a common tool used by individuals as smartphones gain popularity and provide a larger range of application functions. An instant messaging program with text messaging capabilities is among the most widely used apps. Unfortunately, attack criminals can still target communication media. In order to prevent sniffer attacks, how can message data on smartphone users' communication media be kept secure? Node to Node encryption is used in one method. Different encryption techniques may be used in different E2EE implementations. The Advanced encryption Standard cryptographic technique is the encryption method used in this work. The process of creating and developing an messaging sending software for the Android mobiles or IDS mobiles that can both decrypt and encrypt text messages in order to enhance security features on messaging apps is how the results of a study are represented. © 2024 IEEE.

关键词： encryption algorithms

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Optimized Fully Homomorphic encryption Strategy Based on Residue Number System 4

Optimized Fully Homomorphic Encryption Strategy Based on Res...

引用

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

作者： Cheng, Yaqing School of Software Beijing Jiaotong University Beijing China

ISBN: (纸本)9798331531409

With the increasing demand for data security computing, the BFV algorithm has become a research hotspot due to its relatively high efficiency. However, its performance bottlenecks limit its widespread deployment in practical applications when dealing with large-scale data and complex computations. In order to address this challenge, this study proposes a fully homomorphic encryption optimization strategy based on the Residue Number System (RNS). The study first conducts an in-depth analysis of the performance bottlenecks of the BFV algorithm, then elaborates on the theoretical foundation and implementation methods of the RNS optimization strategy. By constructing an experimental framework, we compare traditional BFV algorithms with RNS-optimized versions. Further analysis reveals the significant advantages of RNS in reducing modulus operation complexity, enhancing parallel processing capabilities, and controlling data expansion. Despite the implementation complexities, this optimization strategy holds promise for improving algorithm performance. The findings of this study provide new perspectives for optimizing fully homomorphic encryption algorithms and lay the foundation for future applications in areas such as cloud computing and big data analytics. © 2024 IEEE.

关键词： encryption algorithms

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An Algorithm for Image encryption Combining the Lorenz System, XOR Operation, and Inverted Bit Permutation 3

An Algorithm for Image Encryption Combining the Lorenz Syste...

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3rd International Conference on Embedded Systems and Artificial Intelligence, ESAI 2024

作者： Koulouh, Fatima Amine, Safae Taouil, Rafik Es-Sabry, Mohammed Hdioud, Ferdaous Akkad, Nabil El ENSAF USMBA LASET Laboratory Fez Morocco ENSAF LASET Laboratory Fez Morocco University of Abdelmalek Essaadi ECT FS Tetouan Morocco University of Abdelmalek Essaadi ISISAFS Tetouan Morocco EST USMBA Fez Morocco LASET Laboratory ENSAF Fez Morocco

ISBN: (纸本)9798331522056

This paper proposes a new image encoding algorithm that integrates inverted bit permutation with the chaotic behavior of a hybrid Lorenz chaotic system and XOR operation. The method capitalizes on the inherent of the three-dimensional Lorenz system to produce a highly unpredictable key employed to improve both the encryption process's security and efficiency. This approach offers various advantages: The high resistance to cryptographic attacks, scalability, and use for different image types. The experimental finding confirm the performance and dependability of the suggested encryption technique and prove to be an effective procedure for secure image transmission and storage. © 2024 IEEE.

关键词： encryption algorithms

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