IP security services
List the protocols which are used to provide the IP security? Explain the IP security services?
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a) Authentication header (AH) protocol.
b) Encapsulating Security Payload (ESP).
IP security services can be listed as follows:
a) Access control. b) Connectionless interpretty. c) Data origin authentication d) Rejection of replayed packet. e) Confidentiality. f) Limited traffic for Confidentiality.
Explain the term Encryption.
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Explain why some block cipher modes of the operation use encryption whereas the others use both the encryption and the decryption?
What is meant by the term Add Round Key.
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