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16th International Conference on Software Technologies (ICSOFT)

作者： Sayahi, Ikbel Ben Amar, Chokri Sfax Univ REs Grp Intelligent Machines Lab REGIM Lab Soukra St Sfax Tunisia Private Natl Engn Sch Monastir ESPRIMS Monastir 5060 Tunisia Taif Univ Coll Comp & Informat Technol At Taif Saudi Arabia

ISBN: (纸本)9789897585234

Since the release of the first 3D watermarking algorithm, several approaches have grown up with a diversity of techniques used during the embedding of information into meshes. The main objective is always to secure data shared by remote users. The originality of the present work is issued from combining encryption and hybrid watermarking algorithm to secure 3D multiresolution meshes. The new crypto-watermarking system is composed of three parts: the first part is said watermark preparation and it aims to prepare data to be inserted. During this step, the logo (which refers to copyright information) is encrypted using rsa (Rivest, Shamir,Adleman) algorithm and then encoded by applying a convolutional encoder to the encrypted logo already transformed into a binary sequence. As for the second part, it is called mesh preparation and it consists on decomposing the 3D multiresolution mesh by applying wavelet transform to generate wavelet coefficient vector. Finally, the third part of our algorithm, called hybrid watermarking, occurs to insert encrypted logo and rsa keys into both multiresolution and spatial presentations of the mesh. In fact, the encrypted logo is inserted into resulting wavelet coefficients after applying the transformation to spherical coordinate system, modulation and demodulation. As for rsa key, it is inserted into the mesh resulting from the first watermarking around by modifying geometric information of vertices. Found results prove that we are able to insert a high amount of data without influencing the mesh quality. The application of the most popular attacks does not prevent a correct extraction of data already inserted which is justified by the use of the rsa to encode the watermark and the convolutional error correcting code to retrieve the corrupted information. Our algorithm is, then, robust against these attacks.

关键词： 3D Watermarking Multiresolution Mesh Wavelet Transform rsa algorithm Robustness Copyright Indexation

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Computation and communication efficient secure group key exchange protocol for low configuration system

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International Journal of Information Technology (Singapore) 2021年第3期13卷 839-843页

作者： Rawat, Arjun Singh Deshmukh, Maroti Department of Computer Science and Engineering National Institute of Technology Uttarakhand Srinagar Uttarakhand India

The group key exchange protocol is a cryptographic mechanism is designed to provide a common session key for a group, there are some common challenges to this type of algorithm as computation and communication cost. Whenever the involvement of high computation and communication operations to the algorithms encounter, then the system with low configuration always faces problem in major time delay. The proposed approach is designed specifically to provide computation and communication efficient algorithms for low configuration systems without violating the security. For making our approach computationally efficient, we replaced modular exponential operation by modular multiplication operation, helpful for low configuration system making task early. For making our approach communication efficient, we used the divide and conquer mechanism to reduced the message transmission cost. The major task is to generate a common session key for the group in less computation time for a low configuration system without violating the security. The rsa algorithm assuring security with constant computation cost while the modular multiplication operation, assuring the less computation cost for low configuration system. The major limitation of the study as the approach is more efficient and applicable for low configuration system only, if comparing the existing approaches with the low configuration system. © 2021, Bharati Vidyapeeth's Institute of Computer Applications and Management.

关键词： Communication time Computation time Group key exchange protocol Key exchange protocol rsa algorithm Session key

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Image encryption scheme based on blind signature and an improved Lorenz system

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EXPERT SYSTEMS WITH APPLICATIONS 2022年第0期205卷

作者： Ye, Guodong Wu, Huishan Liu, Min Shi, Yang Guangdong Ocean Univ Fac Math & Comp Sci Zhanjiang 524088 Peoples R China Tongji Univ Sch Software Engn Shanghai 200092 Peoples R China

In this paper, a new improved Lorenz system (ImproLS) is designed with a better behavior due to a larger positive Lyapunov exponent. Then, an asymmetric image encryption scheme is presented based on blind signature and the ImproLS. First, the sender uses the public key from the receiver to produce the cipher keys in conjunction with the Rivest-Shamir-Adleman (rsa) algorithm. Then, a new mathematical model is established to convert both the plain keys and the cipher keys to generate the initial values for ImproLS. After doing preprocess to the secret plain image, its statistical characteristics is changed greatly. Then, by employing permutation and diffusion operations, the cipher image can be obtained and sent to the receiver and the signer. Second, the signer encrypts the digital signature image using Arnold transform in conjunction with the rsa algorithm, and applies the discrete wavelet transform (DWT) to the cipher image. The scrambled signature image is then embedded into the wavelet domain of cipher image blindly. Then, the cipher image containing signature is sent to the receiver for authentication. Third, the receiver uses the private key to check the signature and recover the cipher image. After comparing the decrypted images from both the sender and the signer, the receiver can judge the source of the secret plain image. Experimental results show that the information entropy is high and closer to the theoretical value. In addition, both unsigned and signed cipher images can effectively resist salt and pepper attack, and clipping attack.

关键词： Asymmetric image encryption rsa algorithm ImproLS Signature

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Dynamic DNA coding multi-image encryption based on compound chaos

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JOURNAL OF ELECTRONIC IMAGING 2022年第5期31卷 053007-053007页

作者： Ma, Manman Yu, Xuelian Chen, Hao Xiao, Junjun Li, Xiufang Zhang, Zhichang Harbin Univ Sci & Technol Sch Measurement & Commun Engn Heilongjiang Prov Key Lab Quantum Control Harbin Peoples R China Harbin Inst Technol Shenzhen Coll Elect & Informat Engn Shenzhen Engn Lab Aerosp Detect & Imaging Shenzhen Peoples R China Daheng New Epoch Technol Inc Beijing Peoples R China

We present a dynamic DNA coding multi-image encryption algorithm based on integer lifting wavelet transform and compound chaos. In the encryption process, the low-frequency sub-bands of four plaintexts are extracted to get a combined image containing the multiple plaintext image information. With the help of a chaotic system, the pixel positions and pixel values of the combined image are modified by the permutation and the diffusion operations. Then we divide the image into equal-sized blocks, and the dynamic DNA coding method is used to complete the final encryption. To enhance security, we employ the rsa algorithm to protect the keys used in our encryption algorithm. Simulation results and security analysis demonstrate the robustness and the security. (c) 2022 SPIE and IS&T

关键词： multi-image encryption chaotic system integer lifting wavelet transform DNA coding rsa algorithm

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Implementation Analysis of Encryption and Decryption algorithm Based on python Language 22

Implementation Analysis of Encryption and Decryption Algorit...

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Proceedings of the 2022 7th International Conference on Systems, Control and Communications

作者： Kai Xiao Wuhan Railway Vocational College of Technology China

ISBN: (纸本)9781450397247

Facing the Internet information transmission of WAN or LAN, it is difficult to ensure the security and stability of data transmission after key encryption by using traditional one-way password encryption and two-way stream password encryption. Therefore, a hybrid encryption algorithm of rsa, DES and BASE64 developed based on python language is proposed, and the encryption and decryption scheme of information transmission between network client and client, client and server is set up, including the encryption and decryption implementation of digital certificate accuracy, server registration, user login and communication, file transmission, password modification and log processing, etc., to improve the encryption and decryption security level of data file transmission and log processing, and to maximize the protection of network instant messaging Security and stability.

关键词： rsa algorithm Implementation of encryption and decryption DES algorithm python language

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A Cryptographic-Based Approach for Electricity Theft Detection in Smart Grid

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Computers, Materials & Continua 2020年第4期63卷 97-117页

作者： Khelifi Naim Benahmed Khelifa Bounaama Fateh Laboratory of Energetic in Arid Zones(ENERGARID) Department of Electrical EngineeringFaculty of TechnologyTahri Mohammed University of BecharBechar08000Algeria Department of Mathematics and Computer Science Faculty of Exact SciencesTahri Mohammed University of BecharBechar08000Algeria

In order to strengthen their security issues,electrical companies devote particular efforts to developing and enhancing their fraud detection techniques that cope with the information and communication technologies integration in smart grid *** been treated earlier by several researchers,various detection schemes adapted from attack models that benefit from the smart grid topologies weaknesses,aiming primarily to the identification of suspicious incoming *** meshes have been extensively used in smart grid communication architectures due to their facility,lightness of conception and low cost installation;however,the communicated packets are still exposed to be intercepted maliciously in order either to falsify pertinent information like the smart meter readings,or to inject false data instead,aiming at electricity theft during the communication *** this reason,this paper initiates a novel method based on rsa cryptographic algorithm to detect electricity fraud in smart *** new method consists of generating two different cryptograms of one electricity measurement before sending,after which the recipient is used to find the same value after decrypting the two cyphers in a normal ***,a fraudulent manipulation could occur during the transmission *** presented method allows us to kill two birds with one ***,satisfactory outcomes are shown:the algorithm accuracy reaches 100%,from one hand,and the privacy is protected thanks to the cryptology concept on the other hand.

关键词： Electricity consumption fraud detection rsa algorithm security smart grid

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Enhancement of e-commerce security through asymmetric key algorithm

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COMPUTER COMMUNICATIONS 2020年第0期153卷 125-134页

作者： Dijesh, P. Babu, SuvanamSasidhar Vijayalakshmi, Yellepeddi Bharathiar Univ Dept Comp Sci Coimbatore Tamil Nadu India Reva Univ Sch Comp & Informat Technol Bengaluru 560064 India Karpagam Univ Dept CSE Coimbatore Tamil Nadu India

Electronic commerce offers reduced transaction costs and much convenient mode of business to all over global consumers. This paper explains asymmetric methods which uses electronic commerce transactions and other assisted algorithms of cryptography that are important in set up of electronic commerce working. This study explains the essential security problems in electronic commerce. To avoid the issues of security certain secure conditions must be followed which offers sufficient security to transaction data for every entity in transaction of electronic commerce. In this study a multi-layer encryption algorithm namely rsa encryption algorithm and Fernet cipher encryption algorithm is proposed based on security. Multi-layer encryption algorithm is used to construct a sophisticated and complex approach of encryption. This algorithm integrates the strength of several techniques of encryption at the same time. This study reveals how much safe consumer and payment data order will be managed effectively by security-based approaches. Encryption technique discussed in this study is the major technique to make the transaction over internet secure. A better technology of encryption can decrease the fraudlent activities easily and effectively. This study proposes a mull-layer encryption algorithm and implemented it in order to enable delivery of messages through network in a secure way. This study will be helpful to control the decryption and encryption with the use of private and public key of receiver and sender.

关键词： E-commerce security Encryption Decryption rsa algorithm Fernet cipher algorithm

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Application of Weighted Spiking Neural P Systems with Rules on Synapses for Breaking rsa Encryption

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INTERNATIONAL JOURNAL OF UNCONVENTIONAL COMPUTING 2020年第1-2期15卷 37-58页

作者： Wang, Huifang Zhou, Kang Zhang, Gexiang Paul, Prithwineel Duan, Yingying Qi, Huaqing Rong, Haina Wuhan Polytech Univ Sch Dept Math & Comp Wuhan 430023 Peoples R China Southwest Jiaotong Univ Sch Dept Elect & Engn Chengdu 610031 Peoples R China Wuhan Polytech Univ Sch Dept Econ & Management Wuhan 430023 Peoples R China

rsa algorithm is one of the most widely used public key encryption algorithm. Breaking rsa encryption is considered very difficult and is well-known as rsa problem. The difficulty of this problem lies in prime factorization of large integers. In this paper, we introduce the idea of factorizing large integers to break rsa encryption using weighted spiking neural P systems with rules on synapses. Moreover, parallelism of weighted spiking neural P systems with rules on synapses allows the system to perform a space-time trade-off, and it helps the system to factorize large integers in linear time.

关键词： Weighted spiking neural P systems rules on synapses rsa algorithm large integers

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rsa encrypted FSK RF transmission powered by an innovative microwave technique for invulnerable security

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JOURNAL OF DEFENSE MODELING AND SIMULATION-APPLICATIONS METHODOLOGY TECHNOLOGY-JDMS 2022年第4期19卷 839-854页

作者： Pal, Prashnatita Chandra Sahana, Bikash Poray, Jayanta Natl Inst Technol Patna Dept Elect & Commun Engn Patna 800005 Bihar India Techno India Univ Dept Comp Sci & Engn Kolkata India

Ensuring the secure communication is the prime concern for all kinds of data communication infrastructure. Several data encryption techniques are in use for secure communication. There is a scope for further improvement in the security level, as well as for the received signal quality. The selection of a proper combination of encryption and modulation techniques can improve the overall effectiveness of both the security level and the received signal quality. The combination of asymmetric cryptography (here use rsa (Rivest-Shamir-Adleman) algorithm) algorithm with the proposed reflex klystron-based frequency shift keying (FSK) modulation technique provides a high level of secure communication system. The performance of the proposed technique is experimentally verified. The conventional FSK modulation technique operates in the low-frequency band, but the proposed FSK modulation technique is powered by high-power microwave devices, which operate in the X band. The experimental result has been demonstrated and successfully verified for secured communication using the X band.

关键词： rsa algorithm FSK modulation reflex klystron secure communication

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Comment of Secure File Storage and Retrieval in Cloud Based on Mrsa Cryptographic algorithm 9

Comment of Secure File Storage and Retrieval in Cloud Based ...

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9th International Conference on Industrial Technology and Management (ICITM)

作者： Zhong, Zhengrun Liu, Hongxuan Chen, Sonia C-, I Liu, Chenglian Gardner, Donald Neusoft Inst Guangdong Sch Comp Foshan 258225 Peoples R China Huaquiao Univ Sch Econ & Finance Xiamen 361021 Peoples R China Edmonds Community Coll 20000 68th Ave W Lynnwood WA 98036 USA

ISBN: (纸本)9781728143064

Data confidentiality is a major concern for data outsourcing. It is especially relevant for data storage and retrieval in cloud where the client has no control over it. Therefore, solutions have been proposed to offer a secured environment to ensure data confidentiality. Thangavel et al. attempt to improve data confidentiality by proposing the Mrsa encryption scheme in 2015. However, their attempt failed to deliver the purpose of confidentiality due to the misuse of the rsa algorithm. The authors would like to comment the secure file storage and retrieval in cloud based on cryptographic algorithm by illustrating their error and also showing the way of how to correct it. In this case, the goal of data confidentiality in cloud storage and retrieval can be facilitated.

关键词： rsa algorithm Euler totient function Exclusive-OR operation

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