The command office has asked for a presentation on security mechanisms including access control models, authentication, authorization and encryption. Describe differences between them and identify situations where appropriate. Discuss how encryption relates to storage, network traffic, secure Web access, and the e-mailing of documents. One topic of concern is symmetrical versus public key.

The presentation should include the following information:

• Comparison of security mechanisms
• An explanation of public key cryptography
• Historical background of the development of encryption
• Typical uses of public key cryptography
• Symmetrical versus public key
• Encryption and how it relates to storage, network traffic, secure Web access and e-mail

We need 15-slide presentation to address these points. Include speaker notes in the presentation. Plan the presentation and speaker notes so that someone else could actually give the presentation.

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