TAILIEUCHUNG - SANS Institute InfoSec Reading Room: Applying the OSI Seven Layer Network Model To Information Security

What do we mean by an insecure medium? Well, in some dictionary or another, under the definition of “insecure medium” should be a picture of the Internet. The world is evolving towards interconnecting every computer, and people talk about connecting household appliances as well, all into some wonderful global internetwork. How wonderful! You’d be able to send electronic mail to anyone in the world. You’d also be able to control your nuclear power plant with simple commands sent across the network while you were vacationing in Fiji. Or sunny Libya. Or historic Iraq. Inside the network the world is scary. There are links that eavesdroppers can. | Reading Room wis Interested in learning more about security SANS Institute InfoSec Reading Room This paper is from the SANS Institute Reading Room site. Reposting is not permitted without express written permission. Applying the OSI Seven Layer Network Model To Information Security This paper focuses on reviewing a key area of data networking theory - The Open Systems Interconnect OSI Seven Layer NetworkModel. This paper demonstrates the application of the model s concepts into the context of information security. This paper presents the perspective that common information security problems map directly to the logical constructs presented in the Osi Seven Layer Network Model and seeks to demonstrate the Seven Layer Model s usefulness in evaluating information security problems and solutions. . Copyright SANS Institute Author Retains Full Rights Applying the OSI Seven Layer Network Model To Information Security By Damon Reed NoVember 21 2003 SANS GIAC GSEC Practical Assignment version Option One SANS Institute 2004 As part of the Information Security Reading Room Author retains full rights. Page 2 Applying the OSI seven-layer model to Information Security Abstract Data networking is a critical area of focus in the study of information security. This paper focuses on reviewing a key area of data networking theory - The Open Systems Interconnect OSI Seven Layer Network Model. This paper demonstrates the application of the model s concepts into the context of information security. This paper overall presents the perspective that common information security problems map directly to the logical constructs presented in the OSI Seven Layer Network Model and seeks to demonstrate the Seven Layer Model s usefulness in evaluating information security problems and solutions. The OSI Model is presented by way of both formal definition and practical terms that affect information security on a layer-by-layer basis. For each layer examples of common information security .

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