Abstract: In order to establish secure links across a network, Virtual Private Network (VPN) security is employed. This involves a combination of some or all of these features; namely: encryption, encapsulation, authorization, authentication, accounting, and spoofing (or IP filtering). This project was implemented by a combination of authorization, authentication, accounting, and encryption techniques. A customized network-based, menu driven, and user-friendly Graphical User Interfaced (GUI) email package using Microsoft® Visual Basic® Version 6.0 was applied to further enhance the security of information (or data) transmitted over the network. A program was developed to convert messages or information being sent into scrambled or unreadable formats employing a dynamic encryption code or key before sending. At the receiver end, the code used to encode that particular message was supplied before the message could be read. Authorization, authentication, and accounting security processes were realized by prompting the user to supply users’ name and password to log onto the package. Users were allowed only three trials after which the package would automatically close itself. A database program using Microsoft® Access® was created to ensure that users whose names and passwords were not in the database were locked out. The result obtained in this study are highly useful because the data encryption employed is dynamic. This means that each encrypted and decrypted message is accompanied by a key (or code) peculiar to that message which determines the complexity of the encryption.
Keywords: Authorization, message, encryption, network, accounting, combination, dynamic
Title: Virtual Private Network Security
Author: Umesh Chandra Reddy Nomula
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
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