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Posted: April 4th, 2019
Wireless Network
What are the various technologies employed by wireless devices to maximize their use of the available radio frequencies? Also discuss methods used to secure 802.11.
Please make your initial post and two response posts substantive. A substantive post will do the following:
Provide extensive additional information on the topic
Explain, define, or analyze the topic in detail
Share an applicable personal experience
Provide an outside source that applies to the topic, along with additional information about the topic or the source (please cite properly in APA 7)
Make an argument concerning the topic.
At least two scholarly source should be used in the initial discussion thread.
References
Cao, L., Jiang, X., Zhao, Y., Wang, S., You, D., & Xu, X. (2020). A Survey Of Network Attacks
On Cyber-Physical Systems. IEEE Access, 8, 1–1. https://doi.org/10.1109/ACCESS.2020.2977423
Figueroa-Lorenzo, S., Añorga, J., & Arrizabalaga, S. (2019). A Role-Based Access Control
Model in Modbus SCADA Systems. A Centralized Model Approach. Sensors, 19(20), 4455–. https://doi.org/10.3390/s19204455
Penelova, M. (2021). Access Control Models. Cybernetics and Information Technologies: CIT,
21(4), 77–104. https://doi.org/10.2478/cait-2021-0044
Kim, H., Wasicek, A., Mehne, B., & Lee, E. A. (2016). A Secure Network Architecture for the
Wireless Network:
Wireless devices use various technologies to maximize their use of available radio frequencies, including frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum (DSSS). FHSS divides the frequency band into channels and hops between them rapidly, while DSSS spreads the signal over a wider bandwidth using a pseudorandom code. Both technologies can mitigate interference and increase security by making it harder to detect and intercept the signal.
802.11 is a set of wireless network standards that include security protocols to protect against unauthorized access and attacks. One such protocol is the Wired Equivalent Privacy (WEP) protocol, which provides basic encryption for data transmission. However, WEP is vulnerable to various attacks, including key cracking and packet injection.
To improve security, newer protocols such as Wi-Fi Protected Access (WPA) and WPA2 were developed. WPA uses a temporal key integrity protocol (TKIP) to encrypt data and a message integrity check (MIC) to prevent data tampering. WPA2 improves upon WPA by using the Advanced Encryption Standard (AES) for stronger encryption.
Additionally, access control measures such as authentication and authorization can be used to secure wireless networks. These measures ensure that only authorized users can access the network and that they only have access to the resources they are allowed to use. Role-based access control (RBAC) is a common method for implementing access control in wireless networks, where users are assigned roles based on their job functions and access is granted accordingly.
In conclusion, wireless devices use various technologies to maximize their use of available radio frequencies, and newer protocols such as WPA and WPA2 provide stronger security measures to protect against attacks. Access control measures such as RBAC can also be used to secure wireless networks and ensure that only authorized users have access to resources.
References:
Cao, L., Jiang, X., Zhao, Y., Wang, S., You, D., & Xu, X. (2020). A Survey Of Network Attacks On Cyber-Physical Systems. IEEE Access, 8, 1–1. https://doi.org/10.1109/ACCESS.2020.2977423
Figueroa-Lorenzo, S., Añorga, J., & Arrizabalaga, S. (2019). A Role-Based Access Control Model in Modbus SCADA Systems. A Centralized Model Approach. Sensors, 19(20), 4455–. https://doi.org/10.3390/s19204455
Penelova, M. (2021). Access Control Models. Cybernetics and Information Technologies: CIT, 21(4), 77–104. https://doi.org/10.2478/cait-2021-0044
Kim, H., Wasicek, A., Mehne, B., & Lee, E. A. (2016). A Secure Network Architecture for the Internet of Things. IEEE Communications Magazine, 54(12), 121–127. https://doi.org/10.1109/MCOM.2016.1600923CM
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