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Question

Which Authentication Encryption approach is taken by the IPSec protocol?

a.

Authentication followed by encryption (A→E)

b.

Hashing followed by encryption (H→E)

c.

Encryption followed by authentication (E→A)

d.

Independently encrypt and authenticate (E + A)

Posted under Cryptography and Network Security

Answer: (c).Encryption followed by authentication (E→A)

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Q. Which Authentication Encryption approach is taken by the IPSec protocol?
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