The protocol design and New approach for SCADA security enhancement during sensors broadcasting system

Given that broadcasting is generally characterized by real-time one-way transmission, it is an essential task for this medium to provide interactivity developed in the fields of telecommunications and computers when introducing multimedia into a broadcasting system. This paper discusses how to use and implement interactivity in broadcasting services. It further discusses what functions are required for introducing interactivity into broadcasting. The practicality of interactive services in one-way broadcasting transmission is clarified. A simulation system of ISDB services to evaluate viewers' human interface was developed. The results of experiments using the simulation system are also discussed. It is shown that user-friendly ISDB services can be achieved.

Purpose: The rapid advancement of digital technologies has necessitated robust security measures to protect information systems against escalating cyber threats. The objective is to study the effectiveness of the command line interface (CLI) in IT system security management. Design/methodology/approach: This paper explores the efficacy of the command line interface (CLI) in managing IT system security and examines the potential of integrating biometric data into cryptographic mechanisms. We delve into the CLI's precision and flexibility, which enable the execution of complex security tasks and its seamless integration with advanced security tools. Furthermore, we investigate the incorporation of biometrics, such as fingerprints and facial recognition, into encryption processes, offering enhanced security by binding access to individual biometric identifiers. Findings: Our findings suggest that while CLI remains a vital tool for security specialists, the convergence of CLI with biometric authentication can significantly fortify the security of information systems. Practical implications: The paper addresses the challenges and opportunities presented by this integration, including privacy concerns and the need for secure handling of biometric data. We also discuss the implications of such technologies in the context of the European Union's legal framework on cybersecurity. Originality/value: The article is aimed at those involved in cyber security management. The article presents the possibility of using biometric attestations to support the security of IT systems. Keywords: cybersecurity, European Union cybersecurity legislation, cryptographic mechanisms, data encryption, multi-factor authentication. Category of the paper: research paper.

As a novel type of motor drive with promising prospect, the switched reluctance drive (SRD) has multiple control parameters and flexible control strategies. To control SRD efficiently and conveniently, a human-machine interface (HMI) is needed to set and monitor parameters in different SRD application situations. This paper presents a scheme on designing a HMI for SRD based on microcontroller P89C668. In addition to setting and displaying various operating parameters, the HMI could also control SRD to work in different states and show fault code in the circumstances of malfunction alarm. Asynchronous serial communication is employed in the communication between P89C668 and SRD main controller. Moreover, multi-class menu design is realized in the HMI menu display. Functional characteristics, hardware design, communication protocol and software design of HMI are all introduced in detail. Results of practical application demonstrate that the design scheme is feasible and reliable, and the HMI has achieved the advantages of convenient operation, complete function and reliable working.

Security has become a major concern for many real-world applications for wireless sensor networks (WSN). In this domain, many security solutions have been proposed. Usually, all these approaches are based on well-known cryptographic algorithms. At the same time, performance studies have shown that the applicability of sensor networks strongly depends on effective routing decisions or energy aware wireless communication. This observation correlates with the emergence of new application scenarios. Security mechanisms were rarely included in such measurements and studies and only few approaches were analyzed in experimental setups. Therefore, only theoretical measures were applied to demonstrate and discuss the behavior of security solutions. In this paper, we used an experimental setup for the verification of runtime behavior of several cryptographic algorithms including MD5, SHA-1, and AES. We used typical sensor hardware to get reasonable results. Based on our experiments, we provide some analysis and considerations on practical feasibility of such cryptographic algorithms in sensor networks.

In this paper, a SCADA (supervisor control and data acquisition) system HMI (human machine interface) software was been implemented based on a driver system which consisted by double generators and double motors. This software was been implemented by NI Labview based on the CAN bus. Meanwhile the dynamical monitoring and alarm are implemented. The data collected for the HMI include the collecting data of bus voltage and current; the speed; the temperature on IGBT, bearing and winding. The generator and the motor controller running status and the fault status are also been sent to the HMI. The command sent to the double generators and the double motors are including start/stop, speed, bus voltage, PID parameters to DSP (speed circle Kp and Ki, Kp and Ki in D axis for current circle), etc. The main works focus on the design of CAN communication protocol; multichannel CAN bus control implemented in Labview; bit data and different byte data combination and unpack. In practical engineering application, this system can absolutely realize automatic supervision and control process efficiently and reliably.

Online transaction has become daily routine in our life. All of us are using online transaction very frequently today, so to deal with related security issues like Authorization, data protection, confidentiality is very important. Every person who is doing online transaction, every organization and every government must have the ability to control over the operations of online transactions for securing the information. It is necessary to apply better security mechanism in online transaction for maintaining data integrity, privacy of data and confidentiality. Cryptography uses encryption and decryption process for protecting the data. There are many cryptographic algorithms which uses single key which is private or two keys called public key and private key. One can select the algorithm for transferring the data on the basis of higher security and efficiency criteria of the algorithm. This paper presents role of cryptography for different issues of security and also proposes a new cryptography based algorithm for better security of online transactions. The new algorithm is based on probabilistic cipher and since it uses single key so it is a symmetric encryption algorithm.

Security of Organizations' Information Systems (IS) and the Auditors: A Schematic Study

Because of the language’s simplicity, flexibility and massive libraries supporting artificial intelligence, web development and data science python has become one of the widely used programming language. But this speedy growth has led to software security and vulnerability concerns. This paper examines the security provisions available in python programming and their role in developing secure applications. Herein the analysis is done based on security mechanisms such as validation of inputs, authentication and authorization, libraries available for cryptography, management of dependency tools, static code analysis tools and secure web frameworks. The paper highlights the common security challenges faced in python programming and emphasis on the importance of secure coding practices and comparison of vulnerability detection tools implemented in the past research works. The finding proclaims that python provides several built-in tools and mechanisms which when properly implemented can notably improve reliability and security of software systems. Keywords: Python Security, Secure Coding Practices, Vulnerability Detection, Machine Learning Based Security Analysis, Static Code Analysis, Cryptography in Python, Software Security

IoT is assumed to offer higher connectivity of smart devices, systems, and services that move beyond machine-to-machine communication by using some protocols (RPL, Wi-fi, ZigBee) and techniques (RFID and GSM). Physical objects communicate with each other. Objects can be monitored and controlled through the Internet. IoT has the capability to make home and our life smarter. It can be implemented in different areas such as smart cities, agriculture, energy, healthcare, home automation, and business models. When networks are organized at the large scale, then the security of motes is the main concern. In this paper, we focused specifically on security issues, challenges, and mechanisms of IoT. To secure the network, it is important to establish secure links for the end-to-end communication of motes by using cryptographic mechanism over a home network. We give a solution to secure network communication between motes by purposing Hierarchical Group Key Management Scheme using threshold cryptography in smart homes using IoT.

In this paper, we present the design and implementation of G-Route (Green Route), an autonomic service routing protocol for constructing energy-efficient service provider paths in collaborative cloud computing architectures. The chief contribution of this work resides in autonomously selecting the optimal set of composite service components sustaining the most efficient energy consumption characteristics among a set of providers for executing a particular consumer service request. The routing protocol processes accountable service energy measurements extracted securely from within the provider sites or data centers using trusted computing technologies and cryptographic mechanisms. By pushing green computing constraints into the service routing protocol decision engine, we can leverage the collaborative cloud computing service model to maximize the energy savings achieved by focusing on a path of providers that executes the service requests instead of directing the green computing efforts towards a single provider site. The major goal of G-Route is to enhance the energy savings in the overall cloud computing infrastructure. The protocol design is deployed in a real cloud computing environment using the Amazon EC2 cloud platform. The analyses of the protocol convergence characteristics, traffic overhead, and resilience demonstrate the capability of the proposed system to significantly reduce the overall energy requirements of collaborative cloud services.

In today's world, most of the means of secure data, code storage and distribution rely on suitable cryptographic schemes such as certificates or encryption keys. Thus cryptographic mechanism forms a foundation upon which many important aspects of the solid security system are built. A cryptographic algorithm is considered to be computationally secured if it cannot be broken with standard resources, either current or future and apart from the algorithm distribution of keys also more important to make an efficient cryptosystem. In this paper we have introduced a new block cipher cryptographic symmetric key algorithm named “TACIT Encryption Technique” which has a unique independent approach by using some suitable mathematical logic along with a new key distribution system which is being applied on a secure policy based routing.

Embedded electronic systems need to be equipped with different types of security mechanisms to protect themselves and to mitigate the effects of cybersecurity attacks. These mechanisms should be evaluated with respect to their impacts on dependability and security attributes such as availability, reliability, safety, etc. The evaluation is of great importance as, e.g., a security mechanism should never violate the system safety. Therefore, in this paper, we evaluate a comprehensive set of security mechanisms consisting of 17 different types of mechanisms with respect to their impact on dependability and security attributes. The results show that, in general, the use of these mechanisms have positive effect on system dependability and security. However, there are at least three mechanisms that could have negative impacts on system dependability by violating safety and availability requirements. The results support our claim that the analyses such as the ones conducted in this paper are necessary when selecting and implementing an optimal set of safety and security mechanisms.

The IoT is starting to gain popularity. Through linking all possible things to the internet, from cameras and phones to fridges to wind turbines, people are finding new ways to use IoT in order to improve the quality of life.The Wireless Sensor Network (WSN) was initially designed as a closed network as a very common concept for the tracking of physical data and environmental conditions. The ambient information was gathered via sensor nodes and sent via a gateway to a remote place. In such a layout, there are no direct links between the end-users and the sensor nodes. Both signals are sent through the gateway between nodes and the outside world. For example, the use of sensors for the detection of enemy attacks on the field was inspired by military applications. The IoT is an extension of WSN, an expansion of the traditional model of the internet in which the digital world reaches the physical world.Nevertheless, IoT is opening up a completely new aspect to security threats. Indeed, IoT provides compatibility for both forms of communication: human-to-machine and machine-to-machine. All are expected to be fitted with small, embedded devices that can connect to the internet in the near future. This skill is beneficial in many areas of our everyday lives: from building automation, smart cities, and monitoring systems to all portable smart devices. However, the more IoT applications are deployed, the greater the risk to our information system.Nonetheless, the undenied number of IoT systems, due to limited infrastructure and lack of defense mechanisms, is vulnerable to security breaches, for example, denial of service and replay attacks. IoT systems have many security challenges to overcome in order to obtain the necessary security.The paper describes a new method for encryption and decryption based on Deoxyribo-Nucleic Acid (DNA) structure, molecular characteristics, and biological functions in addition to Huffman compression.Conceptually, the encryption approach is based on the transcription and translation cycle, which are the two biological operations for DNA replication and the DNA conversion into a protein. The DNA cryptographic algorithm is designed and implemented to be used essentially at the physical level but not at the molecular level. We have, in this paper, developed and implemented a cryptographic algorithm for key generation and message encryption. The generated keys are validated using cryptography standard tests which demonstrate their very good performances. To validate the proposed approach, we use Arduino MEGA Boards and NRF24L01 radiofrequency transceivers to build a WSN-based hardware platform. A Human-Machine Interface (HMI) based on IoT using Node-Red of IBM, hosted in a Raspberry Pi 3, is created to monitor the collected data or to control actuators of a specific remote place securely.

Importance of communication security in vehicular network systems is a soaring issue with the evolving automotive industry day by day. The proposed study covers fundamental requirements to ensure automotive system security and some cryptography algorithms that can be beneficial for the security of connected cars from our point of view. Autonomous systems use lots of IoT sensors data. Connected vehicles have a data-sharing network and they are vulnerable to security attacks. So, ensuring the security of these data is an important challenge. The main purpose of this study is to draw attention to the basic security elements of communication between interconnected vehicles, to touch on its daily importance and usage points in human life, and to present the research on possible cryptography methods that can be used by giving information about the current studies. Our research focuses on ensuring both powerful securities infrastructure methods and considering hardware-based conditions. Different approaches, cryptography algorithms, protocols, and real-life companies that dive into autonomous system security challenges are tackled in this study. In addition, some of the important methods and applications are presented in a table from two different perspectives as attack mitigation and security requirements support that are thought to contribute to literature studies.

With the rapid development of the Internet of Things (IoT), non-Orthogonal Multiple Access (NOMA) technology and cognitive wireless network are two promising technologies to improve the spectral efficiency of the system, which have been widely concerned in the field of wireless communication. However, due to the importance of ownership and privacy protection, the IoT system must provide corresponding security mechanisms. From the perspective of improving the transmission security of CR-NOMA system based on cognitive wireless network, and considering the shortcomings of traditional relay cooperative NOMA system, this paper mainly analyzes the eavesdropping channel model of multi-user CR-NOMA system and derives the expressions of system security and rate to improve the security performance of CR-NOMA system. The basic idea of DC planning algorithm and the scheme of sub-carrier power allocation to improve the transmission security of the system were introduced. An algorithm for DC-CR-NOMA was proposed to maximize the SSR of the system and minimize the energy loss. The simulation results show that under the same complexity, the security and speed of the system can be greatly improved compared with the traditional scheme.