Security Standards and Protocols (2)

• IPSEC - network layer security

  • provides security to IP protocol
  • RFC 1825-1829
  • AH: authentication header
    • Authenticates payload only
    • Uses MD5 as a default for data integrity
  • ESP: encapsulated security payload
    • Uses DES-CBC as default for encryption

AH

ESP

TCP

HTTP

FTP

SMTP

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