Analysis of Automotive Network Security †Free Samples to Students

Question: Discuss about the Analysis of Automotive Network Security. Answer: Introduction: The physical layer is responsible for handling the transmissions in bit level in between a number of nodes. It is the lowest layer among all the layers of the OSI network layers. The layer is generally used for the transmission of the raw data in between the nodes. This layer is generally involved with the hardware peripherals of the network. The data flowing in this network is raw and flow in the bits of o and 1. Hence, this layer should be possessing all the qualities of an efficient system are correctness, reliability, robustness and security, compatibility and scalability, ease of use, and efficiency. The physical layer helps in the power management of the system. This layer supports the MCU, CAN and other embedded system loads. The physical layer also integrates the Trans receivers for the CAN and the LIN protocols. This proves the robust capabilities of the physical layers. This layer helps in the transmission of the digital information across the network. The physical layer al so provides an efficient CAN communication facilities that prove the efficiency of the system. Additionally, it is also required that the physical layer is secured efficiently as large amount of raw data flow through the network. The reliability of the network should also be optimum as the data lost in the physical layer can change the entire message of the sender. The scalability and compatibility of the physical layer can be judged through the transmission of data in the network and the synchronization of the data in the bit level. The layer also make point to point communication in between the nodes in the network. The layers provides a speed of around 100 mb/sec which makes the data easy to transfer and also increases the efficiency in the network. Hence, the speed, rate and the efficiency of the system depends on the physical layer of the network. The data-link layers comes after the physical layer. It is almost similar to the physical and perform activities similar to the physical layer. The main components in the layer are framing, physical addressing, and control of flow, error and accessibility. This components acts as major factors on the decision of correctness, reliability, robustness and security, compatibility and scalability, ease of use, and efficiency of the system. Framing makes use of the points to point configurations for the transmission of the bits of data as the stream. This techniques is generally used when the frames are converted to blocks of information. These frames consist of the error checking techniques. They provide the correctness feature to the networking layer. The frames provide the user with the information to the next frame. The labelling information provides the network the assistance to direct the frames to the points in the network where the destination of the frame is present. This provides the ease of use and simplicity for the networking layer. The header of the frame is either the MAC of the machine to which the data is directed and the logical address for the next network layer in line. The MAC addresses are very efficient as they provide the physical address of the devices in the network and hence all the machines in the network listed by the network. This provides the security characteristics to the data-link layer. The MAC addresses are also very compatible for the connection with the other devices in the network. They also help the devices in connecting with the other peripherals in the network. The data-link layer also establishes connection among two nodes in the system. The data transfer is stopped as soon as the link in between the nodes are broken and hence, this provides the information about the efficiency in the data-link layer. The trailers added to the frames provides the information about the error in the network and also makes the data error free o n the other hand. This helps in the error control of the data-link layer. The network layer also makes use of the error control technique such as the ARQ and FEC technologies. Hence, all the criteria for the data-link layer are maintained. The internet layer comes after the data-link layer. The main purpose for this network layer is providing the layer with the communication facilities for all the nodes. The layer provides an end to end communication system for the as opposed to the machine to machine link provided by the data link layer. In addition to this, the layer provides the connection oriented and connection-less services. The layer acts as the interface in between the host and the network. Hence, the layer provides the correctness, reliability, robustness and security, compatibility and scalability, ease of use, and efficiency of the system decisions. The basic approaches adopted by the layer provides the users and the system the option of transmitting data with a flexibility and increase the ease of use in the network. The layer makes use of the source and destination addresses so that the data is sent and collected from the real sources. This provides the security concept to the network. Additionally, the la yer creates a virtual route in between the two nodes for the network and this maintains the robustness of the network. Additionally the compatibility and the scalability of the network is maintained in this layer. These three layers are the most important layers in the network and hence, all the characteristics of an efficient system in these layers would mean that efficiency is maintained throughout the network. In controlled access the nodes in the network consults the other nodes before sending the informations. The administrator holds the access control for the physical locations within the network. The clients request the server for the access to the physical content within the network. The client can only the view the content in the network to which they are provided access to. If the client is not provided with the access they cannot view or access the data. On the other hand in contention based access the data is broadcasted on the network and whoever is present on the network can access the data very easily. Any computer can transmit data at any time. However, this gives rise to collision within the network. The data is served to the clients on a first come first server basis and the data is available each and every node in the network. The controlled access mechanism of getting access to physical media is known as centralized system as the server holds all the access to the data in this network and located centrally. Additionally, the broadcasted data is spreads all over the network and hence, this mechanism is known as the distributed system for data access within the network. All the clients can access the data. Bibliography Ahmed, S.A.G., 2016. Throughput Enhancement of Local Area Network Queuing Model in Heavy Traffic Network (Doctoral dissertation, Sudan University of Science and Technology). Asrani, A., Koul, V. and Khot, R., 2016. Review of Network Steganography Techniques. Imperial Journal of Interdisciplinary Research, 2(12). Bora, G., Bora, S., Singh, S. and Arsalan, S.M., 2014. OSI reference model: An overview. International Journal of Computer Trends and Technology (IJCTT, 7(4). Clemm, A., Medved, J., Varga, R., Bahadur, N., Ananthakrishnan, H. and Liu, X., 2018. A YANG Data Model for Network Topologies (No. RFC 8345). Collins, D., 2015, October. Flexible Switching for Flight Test Networks. In International Telemetering Conference Proceedings. International Foundation for Telemetering. 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