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1st International Conference on E-Business and Information System Security

作者： Zhang, Hong-yan Wang, Wei Henan Inst Engn Dept Comp Zhengzhou Peoples R China

ISBN: (纸本)9781424429097

As the aggregation of information, database system is the core part of computer information system. The security of the database system is of great importance, as the important resource of the website, the security of its account is even more a focus of network security. According to the encrypt and encryption algorithm characteristics of database, to protect the security of database account, method can be used through setting unique value and implementing double hash encryption during encrypting.

关键词： Hash security encryption algorithm unique value

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Experiences from Using the CORAS Methodology to Analyze a Web Application

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JOURNAL OF CASES ON INFORMATION TECHNOLOGY 2005年第3期7卷 110-130页

作者： den Braber, Folker Mildal, Arne Bjorn Nes, Jone Stolen, Ketil Vraalsen, Fredrik Leiden Univ Comp Sci Leiden Netherlands NetCom IT & Internet Responsibil IT Dev Activ Oslo Norway NetCom Oslo Norway SINTEF Qual & Secur Technol Grp Dept Cooperat & Trusted Syst Informat & Commun Technol Trondheim Norway SINTEF Informat & Commun Technol Cooperat & Trusted Syst Grp Trondheim Norway

During a field trial performed at the Norwegian telecom company NetCom from May 2003 to July 2003, a methodology for model-based risk analysis was assessed. The chosen methodology was the CORAS methodology (CORAS, 2000), which has been developed in a European research project carried out by 11 European companies and research institutes partly funded by the European Union. The risk analysis and assessment were carried out by the Norwegian research institute SINTEF in cooperation with NetCom. NetCom (***) is one of the main mobile phone network providers in Norway. Their 'MinSide' application offers their customers access to their personal account information via the Internet, enabling them to view and change the properties of their mobile phone subscription. 'MinSide' deals with a lot of sensitive customer information that needs to be secure, while at the same time being easily available to the customer in order for the service to remain usable and competitive. The goal of the analysis was to identify risks in relation to the use of the 'MinSide' application and, where possible, suggest treatments for these risks. This was achieved through two model-driven brainstorming sessions based on system documentation in the form of UML sequence diagrams and data flow diagrams.

关键词： access control authentication case study computer viruses cost benefits analysis cost estimation data security digital signature encryption algorithm hacker Internet privacy IS project teams iterative design passwords risk management security risk

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Library data protection and threat detection system based on network security

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INTERNATIONAL JOURNAL OF INFORMATION AND COMPUTER SECURITY 2024年第1-2期24卷 137-153页

作者： Xiong, Jianxin Wang, Xianping Hunan Univ Arts & Sci Changde 415000 Hunan Peoples R China Chongqing Univ Arts & Sci Yongchuan 402160 Chongqing Peoples R China

Traditional libraries may have security risks such as data breach, network attack and virus infection, which requires a library data protection and threat detection system based on network security to effectively manage and protect. Based on the premise of network security, this article focused on analysing library data protection and threat detection, constructing a library data protection and threat detection system using encryption algorithms, and testing its performance. According to the experimental results, it can be concluded that the average response time of unknown threats in the library data protection and threat detection system based on network security ranged from 0.4 s to 0.8 s under different test times. It can be seen that the system not only performs well, but also has very good user satisfaction. This article aimed to ensure the security of users' use of library resources and services through effective threat detection and data protection measures.

关键词： library data protection threat detection network security encryption algorithm security vulnerability scanning data breach

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Investigation and application of key technologies of aggregated flash payment based on marketing blockchain in the context of massive distributed generation grid connection

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INTERNATIONAL JOURNAL OF EMERGING ELECTRIC POWER SYSTEMS 2023年第4期24卷 465-474页

作者： Wang, Chao Zhang, Qingfang Yang, Pengfei Si, Xiaofeng Zhou, Li State Grid Gansu Elect Power Co Lanzhou 730000 Gansu Peoples R China State Grid Gansu Elect Power Co Mkt Serv Ctr Lanzhou 730000 Gansu Peoples R China

Optical flash payment technology is a form of optical flash payment application. Its payment scenario is mainly to directly realize "card free payment" in the consumption process through mobile devices, Bluetooth and other connection methods on mobile terminal devices such as smart phones under the mobile Internet environment. The "flash payment" is a more convenient payment method and a new payment channel without the function of electronic wallet. Compared with the current mainstream payment methods, it is more collaborative and complementary. Aggregated payment is a fourth party payment platform, which is different from Alipay, WeChat and other third payment platforms. Aggregated payment is a combination of technology and a platform that combines multiple payment methods. Based on the background of massive distributed power generation connected to the grid, this paper studied the key technologies of flash payment in combination with marketing blockchain, and discussed the data sharing mechanism of marketing information in multiple scenarios from the perspective of marketing blockchain by studying the data sharing mechanism in different scenarios. In this paper, a distributed optical flash payment system and a blockchain based encryption algorithm were proposed. Based on this research, the experimental results of key technologies of aggregated optical flash payment based on marketing blockchain were analyzed. The experimental results in this paper showed that 38.7 % of the users contacted the aggregation payment through the online platform. 11.7 % of people communicated through chatting with friends, and 9.8 % of enterprises got in touch through preferential policies. 4.5 % of them publicized through the media, and 8.3 % made requests through payment plans. 21 % of them transferred money through remittance, and 6 % of them got it through other ways. When using aggregate payment, the main reasons for users to choose aggregate payment were the network, friends chatt

关键词： aggregated flash payment encryption algorithm grid connection of distributed power generation key technologies marketing blockchain

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How to encrypt a graph

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INTERNATIONAL JOURNAL OF PARALLEL EMERGENT AND DISTRIBUTED SYSTEMS 2020年第6期35卷 668-681页

作者： Akl, Selim G. Queens Univ Sch Comp Kingston ON K7L 3N6 Canada

An algorithm is described for encrypting a graph to be transmitted securely from a sender to a receiver. In communications terminology, "the graph is the message": its vertices, its edges, and its edge weights are the information to be concealed. The encryption algorithm is based on an unconventional mapping, conjectured to be a trapdoor one-way function, designed for graphs. This function requires the sender and the receiver to use a secret one-time encryption/decryption key. It is claimed that a malicious eavesdropper with no knowledge of the key will be faced with a computational task requiring exponential time in the size of the input graph in order to extract the original plaintext from the ciphertext carried by the encrypted graph. A number of variants to the main algorithm are also proposed.

关键词： Cryptography cryptanalysis cryptology encryption decryption secret key one-way function trapdoor one-way function graph multigraph plaintext ciphertext one-time key encryption algorithm encryption scheme public-key cryptosystem malleability confusion diffusion graph database homomorphic encryption social networks unconventional cryptographic function quantum cryptography protocol molecular encoding

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A visual DNA compilation of Rossler system and its application in color image encryption

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CHAOS SOLITONS & FRACTALS 2023年第1期174卷

作者： Zou, Chengye Wang, Lin Yanshan Univ Coll Informat Sci & Engn Qinhuangdao 066004 Peoples R China Dalian Univ Technol Fac Elect Informat & Elect Engn Dalian 116024 Peoples R China Informedia Elect Co Ltd Dalian Peoples R China

This paper proposes the use of visual DNA compilation for the Ro & BULL;ssler chaotic system in the context of semi synthetic biology, which has promising prospects for the development of next-generation computers. The proposed method utilizes DNA toehold mediated strand displacement circuit and fluorescent labeling to construct a DNA circuit as a pseudo-random number generator with high information entropy. To overcome the degeneration of the key space due to the finite precision of concentration detection, the key space is expanded based on the keys of dk. Additionally, concentrations of DNA strand detected in valid time are transformed into diverse multiple blocks to construct chaotic sequences. Experimental results demonstrate that the proposed encryption approach is highly secure and has a strong ability to resist common attacks. Specifically, the proposed image encryption algorithm provides positive security and is resistant to diverse attacks, thus ensuring the information security of the plaintext image.

关键词： Semi-synthetic biology DNA toehold mediated strand displacement reaction encryption algorithm

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Securecipher: An instantaneous synchronization stream encryption system for insider threat data leakage protection

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EXPERT SYSTEMS WITH APPLICATIONS 2024年 254卷

作者： Montano, Isabel Herrera Diaz, Juan Ramos Aranda, Jose Javier Garcia Molina-Cardin, Sergio Lopez, Juan Jose Guerrero Diez, Isabel de la Torre Univ Valladolid Dept Signal Theory & Commun & Telemat Engn Paseo Belen 15 Valladolid 47011 Spain Nokia Dept Innovat Maria Tubau St 9 Madrid 28050 Spain

The paper addresses the persistent challenge of insider threat in cybersecurity. Despite advancements in detection and prevention technologies and approaches, the complexity of digital environments and the ingenuity of insiders remain a problem. We propose an encryption algorithm called Securecipher, specifically designed to protect file systems from insider threats. The requirements that an algorithm must meet in this context are outlined, along with a method for its development. A context-based key generation mechanism is introduced, eliminating the need for key storage. A file marking mechanism is proposed that enables protection of the encryption algorithm against specific insider threat attacks. The proposed encryption algorithm meets the requirements posed by insider threats and has successfully passed 87 % of the NIST tests, equivalent to 13 out of 15 tests passed. Compared to conventional algorithms, the proposed encryption algorithm is more efficient in the context of insider threats, allowing access to distant locations instantaneously. In the specific case of the comparison with the RC4 algorithm, it showed a 0.25 s higher speed when accessing the last position of a 128-bytes file. Furthermore, a significant increase in the vocabulary of the encrypted text with Securecipher compared to the original text is observed, approximately 42 times more.

关键词： encryption algorithm Decryption algorithm Secure file system Insider threat Information security

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Research on Medical Data Storage and Sharing Model Based on Blockchain 7

Research on Medical Data Storage and Sharing Model Based on ...

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IEEE/ACM 7th Symposium on Edge Computing (SEC)

作者： Zhao, Jian Qiang, Wenqian Zhao, Zisong An, Tianbo Kuang, Zhejun Xu, Dawei Shi, Lijuan Changchun Univ Coll Network Secur Changchun Peoples R China Changchun Univ Coll Comp Sci & Technol Changchun Peoples R China Changchun Univ Coll Elect Informat Engn Changchun Peoples R China

ISBN: (纸本)9781665486118

With the process of medical informatization, medical diagnosis results are recorded and shared in the form of electronic data in the computer. However, the security of medical data storage can not be effectively protected and the unsafe sharing of medical data among different institutions is still a hidden danger that can not be underestimated. To solve the above problems, a secure storage and sharing model of private data based on blockchain technology and homomorphic encryption is constructed. Based on the idea of blockchain decentralization, the model maintains a reliable medical alliance chain system to ensure the safe transmission of data between different institutions;A privacy data encryption and computing protocol based on homomorphic encryption is constructed to ensure the safe transmission of medical data;Using its complete anonymity to ensure the Blockchain of medical data and patient identity privacy;A strict transaction control management mechanism of medical data based on Intelligent contract automatic execution of preset instructions is *** security verification, compared with the traditional medical big data storage and sharing mode, the model has better security and sharing.

关键词： Blockchain encryption algorithm Medical data Secure message processing systems Storage models Shared-resource systems

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A new n-dimensional conservative chaos based on Generalized Hamiltonian System and its' applications in image encryption

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CHAOS SOLITONS & FRACTALS 2022年第0期154卷 111693-111693页

作者： Liu, Xilin Tong, Xiaojun Wang, Zhu Zhang, Miao Harbin Inst Technol Sch Comp Sci & Technol Weihai 264209 Peoples R China Harbin Inst Technol Sch Informat Sci & Engn Weihai 264209 Peoples R China

In view of the problem that dissipative chaos has attractors and is easy to be attacked by reconstruction, which leads to the security defects of encryption algorithm based on dissipative chaos, we design a new general form of n-dimensional conservative chaos according to the generalized Hamiltonian system. Taking four-dimensional (4D) as an example, numerical verification and performance analysis show that the conservative chaos has excellent chaotic characteristics such as wide ergodicity, no attractors, no chaotic degradation, and it can resist reconstruction and other attacks. Based on this 4D conservative chaos, we propose a new image encryption algorithm, which includes the plaintext related dynamic scrambling method and the dynamic diffusion mechanism of quadrilateral rule (MQR). Moreover, the initial values of the system are controlled by the external key stream and the internal key stream, so that the generation of ciphertext information are closely related with that of plaintext information, part of the ciphertext information, pseudo-random sequence and the key stream, which can increase the ability of the algorithm to resist plaintext and other attacks. Experimental simulation and performance analysis show that the encryption algorithm has better security and real time communication. (C) 2021 Elsevier Ltd. All rights reserved.

关键词： Dissipative chaos encryption algorithm Conservative chaos Generalized Hamiltonian system Dynamic scrambling Diffusion mechanism of quadrilateral rule

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Overview of Image encryption Technology based on Chaos and Neural Network

International Core Journal of Engineering

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International Core Journal of Engineering 2021年第10期7卷 196-201页

作者： Mindan Zhang Ye Tao Wenyu Zhang

Artificial neural network is a very important operation model in the field of artificial intelligence. Ann deals with complex problems by simulating the structure and logic of human brain. Chaotic system is a dynamic system of deterministic, disordered and nonlinear motion. Whether random factors are added or not, it can show a random phenomenon, that is, it shows internal randomness, the motion trajectory is not periodic or divergent, and it depends on the initial value, and the sensitivity is also stronger. This paper introduces the types of ciphers in cryptography, encryption algorithms in cryptography and the characteristics of chaos, and introduces in detail the feedforward neural network, feedback neural network and self-organizing neural network in neural network, as well as the current encryption algorithms based on chaos and neural network.

关键词： Chaos Image encryption encryption algorithm Neural Network

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