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encryption algorithms Modeling in Detecting Man in the Middle Attack in Medical Organizations

INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS 2022年第8期13卷 64-76页

作者： Alnasser, Sulaiman Alsaqour, Raed Saudi Elect Univ Coll Comp & Informat Dept Informat Technol Riyadh 93499 Saudi Arabia

A cyberattack is a serious crime that could affect medical organizations. These attacks could affect medical organization sensitive data disclosure, loss of organization data, or the business's continuity. The Man-in-The-Middle (MITM) attack is one of the threats that could impact medical organizations. It happens when unapproved outsiders break into the traffic between two parties that think they are conversing directly. At the same time, the adversary can access, read, and change secret information. Because of that, medical organizations lose confidentiality, integrity, and availability. Data encryption is a solution that changes vital information to unreadable by unauthorized and unintended parties. It could involve protecting data with cryptography, usually by leveraging a scrambled code. Only the individuals with the decoding key can read the information. There is no full protection due to the variety of MITM attacks. Each encryption algorithm has its advantages and disadvantages, like the speed of encryption and decryption, strength of the algorithm, and the cipher type. This research investigates the MITM attacks and comprehensively compares the Rivest Shamir Adleman algorithm and the Elliptic Curve Cryptography algorithm.

关键词： Cyberattack medical organization man in the middle attack encryption algorithm rivest shamir adleman algorithm elliptic curve cryptography algorithm

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Privacy protection technology in e-commerce based on dilated convolution network model

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JOURNAL OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2025年第1期25卷 54-66页

作者： Huang, Furong Shaoxing Univ Shangyu Coll Room 504Bldg 10Baiguan St Shaoxing 312300 Zhejiang Peoples R China

This paper aims to investigate and advance the privacy protection techniques within the e-commerce domain by leveraging the dilated convolutional network (DCN) model. It endeavors to elevate the safeguarding of user data privacy to a higher level of security. The study introduces a privacy protection methodology grounded on the DCN model. Firstly, it delves into an analysis of the threats and attack vectors concerning privacy security in e-commerce settings. Subsequently, it devises a network model integrating DCN, attention mechanism, and gating mechanism, tailored to fortify the privacy of user data. Additionally, the paper incorporates advanced technologies such as differential privacy and encryption algorithms to augment the data's privacy protection capabilities. Finally, this paper uses the actual e-commerce dataset for experimental evaluation and compares the method proposed in this paper with other common privacy protection methods. The experimental results show that (1) the privacy protection technology based on the DCN model proposed in this paper has obvious advantages in reconstruction error, information utilization efficiency, and model efficiency. (2) The overall performance (accuracy, recall, and F1 value) of the privacy protection technology based on the DCN model proposed in this paper is better than that of the comparison method. The experimental findings outlined above underscore the promising potential and advantages of the DCN model in enhancing privacy protection within e-commerce platforms. This paper presents a robust privacy protection technology tailored for e-commerce platforms, which serves to bolster user trust and elevate the overall level of data privacy protection.

关键词： e-commerce dilated convolutional network privacy protection differential privacy encryption algorithm

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Implementation of a block cipher algorithm for medical information security on cloud environment: using modified advanced encryption standard approach

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MULTIMEDIA TOOLS AND APPLICATIONS 2023年第13期82卷 20537-20551页

作者： Adeniyi, A. E. Abiodun, K. M. Awotunde, J. B. Olagunju, M. Ojo, O. S. Edet, N. P. Precious Cornerstone Univ Dept Comp Sci Ibadan Oyo State Nigeria Landmark Univ SDG 4 Qual Educ Grp Omu Aran Nigeria Landmark Univ SDG 9 Ind Innovat & Infrastruct Res Grp Omu Aran Nigeria Landmark Univ Dept Comp Sci Omu Aran Kwara State Nigeria Univ Ilorin Dept Comp Sci Ilorin Kwara State Nigeria Fed Univ Oye Ekiti Dept Comp Sci Oye Ekiti State Nigeria Ajayi Crowther Univ Dept Comp Sci Oyo Nigeria

The need of keeping medical information safe and secure stems from the fact that doctors rely on it to make accurate diagnoses. If this information is altered in any way, no matter how minor, there is a risk of an inaccurate diagnosis, which could result in severe medical issues and death. The transition from paper to electronic health records (EHRs) has considerably improved patient care quality and efficiency. However, for many healthcare service providers, it has extended the attack surface. Because of the value of a patient's medical information, this has posed a threat to both patients and healthcare providers. When security is not taken into account in healthcare systems, patients' privacy is jeopardized. The intended solution to this challenge is to create a modified AES algorithm to secure patient medical information. Although, the AES algorithm is secure, however, there is always a need for improvement on any cryptographic algorithms in terms of computational cost. This study implements AES and modified the last round of the AES and their performance has been measured by scrambling input datasets of various contents and volumes. The experimental results show that modified AES outperforms AES algorithms in terms of encryption time while AES outperform modified AES in terms of decryption time. Also, the Avalanche effect results revealed that modified AES has a higher avalanche effect for small-size files while a smaller avalanche effect for larger file sizes. This signifies that modified AES security is stronger for a small size file while conventional AES has higher security for larger file sizes. The average encryption time of the AES algorithm for text files is 1513.3ms while the modified AES average encryption time gives 1293.837ms. The average decryption time for conventional AES is 1289.627ms while the average decryption time for modified AES give 1400.136ms. Modified AES uses lesser time complexity during the encryption of all categories of data files

关键词： encryption algorithm AES Medical information Cloud Security

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encryption of accounting data using DES algorithm in computing environment

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JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020年第4期39卷 5085-5095页

作者： Wu, Yanhong Dai, Xiuqing Guangdong Ocean Univ Coll Management Cunjin Coll Zhanjiang 524094 Guangdong Peoples R China

The more and more developed network has caused more and more impact on people's life and work, providing convenient channels for people's information exchange, and then improving people's living and working conditions. However, when data is transmitted through the network, there are hidden security risks, especially important accounting data. Once intercepted and used by criminals, it may cause serious harm to the owner of the data. Based on the above background, the purpose of this article is to study the use of the DES algorithm to encrypt accounting data in a computing environment. This paper proposes an improved quantum genetic algorithm and applies it to the S-box design of the DES algorithm, which improves the non-linearity of the S-box, reduces the differential uniformity, and enhances the security of the DES algorithm. This improved DES algorithm reduces the number of iterations by increasing the key length and iterative processing using a two-round function, which further increases the security of the algorithm and improves the operation speed of the encryption process. It is found that the 64 ciphertexts of the DES algorithm and the number of changed bits compared to the original ciphertext fluctuates around 32 bits, which explains the problems that should be paid attention to when using the DES algorithm to encrypt accounting data. The validity of key characters should be guaranteed to prevent key loss or leakage. Shorter data encryption regular solution.

关键词： DES algorithm accounting data data encryption encryption algorithm

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Charging wireless sensor network security technology based on encryption algorithms and dynamic model

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INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS 2020年第3期16卷 1-10页

作者： Li, Yuanming Guo, Wei Meng, Xuejun Xia, Wen State Key Lab Astronaut Dynam Xian 710043 Shaanxi Peoples R China China Xian Satellite Control Ctr Xian Shaanxi Peoples R China

With the popularization of the Internet, the related information technology is developing faster and faster, and the scale and complexity of the network are also increasing. Wireless networks cover all aspects of life, along with it, network security issues have gradually emerged. In recent years, network security vulnerabilities have been exposed continuously, from WiFi to Bluetooth, people gradually realize the security of wireless networks. The purpose of this article is to solve the existing security problems and study the operation process of RC4 and Advanced encryption Standard algorithms, and the improvement scheme is put forward. This article is based on the inherent media access control address filtering technology of wireless network card;a dynamic security model for wireless networks is proposed and constructed. Devices accessing the network use 802.1x authentication method and distribute and set security status values for each device, the authentication server uses Remote Authentication Dial in User Service. This article uses the method of virtual private network encryption network to provide an encryption layer for communication between devices and wireless networks, thus, the data in network transmission can be encrypted and protected. In this article, the structure and strategy of Remote Authentication Dial in User Service are changed, in order to ensure the high security of wireless network equipment in the connection process. In the testing phase of this article, we have tested the model in detail several times. Tests are divided into middleman and session interception tests. A large number of test results show that this model can improve the security of wireless network and has good performance.

关键词： Wireless network encryption algorithm dynamic security model network security

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A COMPUTER PACKAGE FOR MEASURING THE STRENGTH OF encryption algorithmS

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COMPUTERS & SECURITY 1994年第8期13卷 687-697页

作者： GUSTAFSON, H DAWSON, E NIELSEN, L CAELLI, W QUEENSLAND UNIV TECHNOL FAC INFORMAT TECHNOLINFORMAT SEC RES CTRBRISBANEQLD 4001AUSTRALIA

Designers and users of encryption algorithms used in cipher systems need a systematic approach in examining their ciphers prior to use, to ensure that they are safe from crypt-analytic attack. This paper describes a c... 详细信息

关键词： encryption algorithm DES algorithm BLOCK CIPHER STREAM CIPHER BLACK BOX ANALYSIS

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Analysis of some recently proposed chaos-based encryption algorithms

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PHYSICS LETTERS A 2001年第6期291卷 381-384页

作者： Jakimoski, G Kocarev, L Univ Calif San Diego Inst Nonlinear Sci La Jolla CA 92093 USA

We analyze the security and performance of two recently proposed encryption algorithms designed using deterministic chaotic dynamical systems. The analysis shows not only that the encryption rates of these algorithms are not competitive to the encryption rates of the standard algorithms, but that the algorithms can be easily broken using known-plaintext attack. (C) 2001 Elsevier Science B.V. All rights reserved.

关键词： chaos cryptography encryption algorithm cryptanalysis

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Efficient Video encryption using Lightweight Cryptography algorithm 3

Efficient Video Encryption using Lightweight Cryptography Al...

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3rd International Conference on Emerging Trends in Engineering, Sciences and Technology (ICEEST)

作者： Hussain, Syed Saiq Ibrahim, Muhammad Sohail Mir, Syed Zain Yasin, Sajid Majeed, Muhammad Kashif Ghani, Azfar Iqra Univ FEST Karachi Pakistan

ISBN: (纸本)9781538682494

The natural redundancy in video data due to its spatio-temporal correlation of neighbouring pixels require highly complex encryption process to successfully cipher the data. Conventional encryption methods are based on lengthy keys and higher number of rounds which are inefficient for low powered, small battery operated devices. Motivated by the success of lightweight encryption methods specially designed for IoT environment, herein an efficient method for video encryption is proposed. The proposed technique is based on a recently proposed encryption algorithm named Secure IoT (SIT), which utilizes P and Q functions of the KHAZAD cipher to achieve high encryption at low computation cost. Extensive simulations are performed to evaluate the efficacy of the proposed method and results are compared with Secure Force (SF-64) cipher. Under all conditions the proposed method achieved significantly improved results.

关键词： Spatio-temporal correlation Secure Force (SF) Secure IoT (SIT) Cipher encryption algorithm

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Study on algorithm for Grid Subdivision and encryption Based on Technology of Three Dimensional Geological Modeling

Study on Algorithm for Grid Subdivision and Encryption Based...

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2nd International Conference on Measurement, Instrumentation and Automation (ICMIA 2013)

作者： He, Wei Wu, Wenli Chinese Acad Geol Sci Inst Geophys & Geochem Explorat Langfang 065000 Hebei Peoples R China

ISBN: (纸本)9783037857519

To achieve 3D grid models which have a non-uniform size and varying properties, we proposed the algorithm of grid subdivision and encryption by human-computer interaction. This algorithm was the technology based on 3D geological modeling, and achieving process has following three steps. Firstly, we converted many 2D cross sections to 3D space, and reconstructed 3D vector models using the algorithm of optimal path suture, and set the property of abnormal body and surrounding rock. Then, achieving 3D grids subdivided according to the relationship between the center of 3D grid and 3D vector models, the properties of 3D grids were determined. Finally, we encrypted grids in the survey area and expansion area, and modified the properties. The results show that the algorithm can realize the conversion from 3D vector models to 3D grid models, and this process is reliable and efficient.

关键词： computer application three dimensional modeling subdivision algorithm encryption algorithm table structure

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Evaluating the Security of Logic encryption algorithms

Evaluating the Security of Logic Encryption Algorithms

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IEEE International Symposium on Hardware Oriented Security and Trust (HOST)

作者： Subramanyan, Pramod Ray, Sayak Malik, Sharad Princeton Univ Dept Elect Engn Princeton NJ 08544 USA

ISBN: (纸本)9781467374200

Contemporary integrated circuits are designed and manufactured in a globalized environment leading to concerns of piracy, overproduction and counterfeiting. One class of techniques to combat these threats is logic encryption. Logic encryption modifies an IC design such that it operates correctly only when a set of newly introduced inputs, called key inputs, are set to the correct values. In this paper, we use algorithms based on satisfiability checking (SAT) to investigate the security of logic encryption. We present a SAT-based algorithm which allows an attacker to "decrypt" an encrypted netlist using a small number of carefully-selected input patterns and their corresponding output observations. We also present a "partial-break" algorithm that can reveal some of the key inputs even when the attack is not fully successful. We conduct a thorough evaluation of our attack by examining six proposals for logic encryption from the literature. We find that all of these are vulnerable to our attack. Among the 441 encrypted circuits we examined, we were able to decrypt 418 (95%). We discuss the strengths and limitations of our attack and suggest directions that may lead to improved logic encryption algorithms.

关键词： encryption algorithm Formal logic integrated circuit design cryptography Security

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