Transparent conducting tin-doped indium oxide (ITO) thin films were deposited on Teflon and glass substrates using RF magnetron sputtering technique from an ITO ceramic target. The substrates were loaded on a cylindrical drum maintained at a temperature of I 5 2°C and rotated at a constant rate of 6rpm. At the optimal deposition condition, the 1,To thin films with maximum transmission of 93% and a minimum sheet resistance of 1O 2/D was achieved. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/17/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx acrylic substrate", Thin Solid Films 229 146 1993.

Abstractenabling technologies, tools, languages, frameworks and platforms facilitating the much anticipated convergence of Web and wireless communication started to unfold, the vision of ushering mobile / wireless Internet is all set to fructify and blossom here in a big way in the days to come. Fortunately Mobile Internet / Wireless Web is a larger part of the grand vision of ubiquitous Computing (providing information and services on demand in a secure manner for any one at any time, at the desired quantity and quality, at any place through any device). But one critical, urgent and explosive issue that stands out in making computing and communication ubiquitous, pervasive and invisible is security. As security problem has encompassed the whole IT domain today, there is a serious and focused research on bringing out robust, unbreakable, durable and innovative security ideas and solutions. Thus the requirement of security has come to the center stage of research. In this new, highly important and fast emerging field security is being touted as the main obstacle for extensive proliferation of wireless Internet usage. In this paper, we have explained about the wireless Local Area Network (WLAN) security challenges along with how a hacker is able to break into the wireless network like WEP cracking, MAC attack, Man-in-middle attack, Dictionary attack, session hijacking and DoS followed by the existing and proposed viable solutions such as WEP based security using RC4 algorithms and the issues related to the same.

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