• Baibaswata Mohapatra

Due to its unsupervised and hostile deployment in the field, user authentication in wireless sensor networks (WSNs) is a key security challenge. Due to the limited computer power, storage capacity, and communication modules available on sensor nodes, authenticating distant users in such resource-constrained systems is a critical security challenge. M.L. Das has suggested a two-factor user authentication technique for WSNs, claiming that it is safe against a variety of attack types. However, we demonstrate in this work that the M.L. Das-scheme has many serious security flaws and so cannot be recommended for use in real-world applications. We point out that his approach does not allow users to modify or update their passwords, lacks mutual authentication between the gateway and sensor nodes, and is subject to gateway node bypassing and privileged-insider attacks. To address the M.L. Das-intrinsic scheme's security flaws, we suggest enhancements and security updates that address the scheme's vulnerabilities. The suggested security enhancements may be integrated into the M.L. Das-scheme to provide more secure and robust two-factor user authentication in WSNs.

WSN, SENSORS, Security Challenges

"A REVIEW ON WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.920-923, August-2018, Available :http://www.jetir.org/papers/JETIR1809A43.pdf

"A REVIEW ON WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp920-923, August-2018, Available at : http://www.jetir.org/papers/JETIR1809A43.pdf