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Wireless data communications have transformed not only the business world but also the whole human society by improving efficiency, flexibility, convenience and above all productivity besides providing the unique location, device, and time-independent connectivity. Information security describes all measures taken to prevent unauthorized use of electronic data - whether this unauthorized use takes the form of disclosure, alteration, substitution, or destruction of the data concerned. Information Security is classified as the provision of the three different services such as; message confidentiality, Integrity, authentication, non-repudiation and availability.
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