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检索条件"主题词=encryption algorithms"

共 389 条记录，以下是121-130 订阅

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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...

引用

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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Efficient Identity-Based encryption with Minimal Server Trust 43

Efficient Identity-Based Encryption with Minimal Server Trus...

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43rd International Symposium on Reliable Distributed Systems

作者： Liang, Yuan Di Crescenzo, Giovanni Wang, Haining Patni, Zahir Virginia Tech Blacksburg VA 24061 USA Peraton Labs Basking Ridge NJ 07920 USA

ISBN: (纸本)9798331530044;9798331530037

Boneh and Franklin proposed one of the first constructions of the very elegant concept of identity-based encryption (IBE) two decades ago. Despite many research advances and its several potential applications, IBE has not achieved enough in real-life use. One likely reason is that it puts too much trust in the key derivation server, also known as the IBE key escrow problem or the problem of reducing server trust in IBE schemes. Specifically, its PKG (private key generator) can implicitly decrypt all ciphertexts. In this paper, we propose a new approach to address the IBE key escrow/server trust problem: enhance IBE schemes by distributing key derivation across all receivers, and thus moving most or even all of the key derivation capability from the server to the decrypting receivers. Specifically, we target solutions with minimal server needs: either no central server or a repository server that only maintains a master public key of size independent of the number of users, but does not maintain any secret data or secret keys. Indeed, we show protocols based on well-known conventional IBE schemes, which work in a public parameter model (i.e., including neither a common reference string with private data kept by the server, nor a common random string model generated by a third party). Our main performance objective is to have no or minimal modification to the encryption algorithm, so as to make the resulting schemes usable for Internet of Things (IoT) applications and minimize any extra resource cost at encrypting sensors in this domain. No previous work achieved this performance goal in conjunction with minimal server needs before, and our solutions are optimal on our performance goal, while achieving essentially minimal server needs. The closest results from previous work consist of either replicating the key derivation server into many of which only a threshold is trusted, or of the recent notion of registration-based encryption, whose main performance goal is to r

关键词： encryption algorithms

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The Power Consumption Cost of Data encryption in Smartphones

The Power Consumption Cost of Data Encryption in Smartphones

引用

International Conference on Open Source Software Computing (OSSCOM)

作者： Masoud, Mohammad Jannoud, Ismael Ahmad, Amal Al-Shobaky, Haithm Al Zaytoonah Univ Jordan Fac Engn & Technol Comp & Commun Engn Dept Amman 11733 Jordan

ISBN: (纸本)9781467374651

this paper provides a performance evaluation of four different symmetric encryption algorithms in Android mobile platform. DES, Bluefish, RC6 and AES algorithms have been written and implemented in JAVA for Android platform utilizing an open source library called Bouncy castle. Different file sizes have been encrypted and power consumption has been measured. The results demonstrated that the cost of implementing these encryption algorithms in smartphones is high. Power consumption may prevent developers from utilizing encryption algorithms in their communication applications through smartphones. In addition, our results demonstrate the requirements of new power-saving 'Green' encryption algorithms. Finally, encryption algorithms are not about security only, power should be one requirement in designing these algorithms for smartphones.

关键词： Android encryption algorithms Smartphones Battery Capacity Power Consumption

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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...

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

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

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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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Database encryption using asymmetric keys: a case study 21

Database encryption using asymmetric keys: a case study

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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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Medical Image Integrity Control Using Joint encryption and Watermarking Techniques

Medical Image Integrity Control Using Joint Encryption and W...

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International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE)

作者： Suganya, G. Amudha, K. KS Rangasamy Coll Technol Dept ECE Tiruchengode India

ISBN: (纸本)9781479949816

A joint encryption and watermarking technique is an efficient method for verifying the reliability of medical images. The medical image integrity control is achieved by the combined watermarking algorithm, QIM (Quantization Index Modulation), with an encryption algorithm. The proposed method uses two encryption algorithm namely RC4, AES are Stream cipher, Block cipher algorithm respectively. The main objective of this method is to provide integrity control for medical images although it is encrypted. Experimental security analysis is taken for the 8-bit ultrasound images and 16-bit Positron Emission Tomography (PET) images. The results achieved are demonstrates the capability of the system to provide security attributes while minimizing the distortion in encrypted and spatial domain. When AES algorithm is operated with Cipher Block Chaining (CBC) mode the output image is transparent with the DICOM standard.

关键词： Medical image security encryption algorithms Watermarking technique Quantization index modulation

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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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An Innovative Image encryption Algorithm rooted in the Concept of Latin Square Matrix Algorithm

An Innovative Image Encryption Algorithm rooted in the Conce...

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2024 International Conference on Science, Engineering and Business for Driving Sustainable Development Goals, SEB4SDG 2024

作者： Akande, Oluwatobi Noah Grace Ebere, Egenti Saidu, Charles Isah Ogedebe, Peter Baze University Computer Science Department Abuja Nigeria ACETEL National Open University of Nigeria Nigeria

ISBN: (纸本)9798350358155

Image encryption techniques are crucial for guaranteeing the secrecy, consistency, and genuineness of images in diverse applications. These methods are specifically designed to transform images into a format that is incomprehensible or devoid of meaning without the appropriate decryption key. They play a crucial role in preserving the privacy and safeguarding the integrity of photographs in many applications. This work introduces an innovative method for encrypting and decrypting images using a probabilistic approach. The suggested technique utilizes probabilistic encryption to transform a plaintext image into many ciphertext images using a single encryption key. It also guarantees that the decoding process is capable of handling errors up to a predetermined threshold. The proposed encryption algorithm employs two distinct techniques, specifically permutation and substitution, to encrypt square pictures. In a digital picture chaotic encryption system, the initial approach involves employing a random number sequence derived from the image pixel set and chaos for encryption purposes. The second strategy employs a cascade mechanism for the row permutations, referred to as PLCLs, in conjunction with the column permutations known as PCCLs. The third method use the logistic mapping methodology to produce sequences that display a pseudorandom appearance. The experimental results consistently show that the suggested encryption strategy is secure. It has a large key space, is very sensitive to both plain images and plain images, and does not have any known flaws. © 2024 IEEE.

关键词： 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 ...

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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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