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Network Security PowerPoint Presentation
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Network Security

Network Security

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Network Security

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Presentation Transcript

  1. Network Security

  2. Encryption • Process of converting readable data into unreadable characters to prevent unauthorized access. • Encrypt – make unreadable • Decrypt – make readable

  3. Encryption…Cont’d • Plaintext – data not yet encrypted • Ciphertext – data that has been encrypted • Encryption key – used to decrypt ciphertext into plaintext

  4. Wi-Fi Security • Wireless networks are more susceptible than wired networks • LAN jacking (war driving) • practice of intercepting wireless signals by cruising through an area

  5. Wi-Fi Security…Cont’d • War chalking • Chalkers make chalk marks on outdoor surfaces to indicate wireless networks • Symbols used to indicate passwords • Security Protocol • WEPs – outdated • WPA2 and WPA – more secure