How is the hash message authentication code (HMAC) algorithm used in an IPsec VPN?
- to authenticate the IPsec peers
- to create a secure channel for key negotiation
- to guarantee message integrity
- to protect IPsec keys during session negotiation
Explanation: The IPsec framework uses various protocols and algorithms to provide data confidentiality, data integrity, authentication, and secure key exchange. The hash message authentication code (HMAC) is a data integrity algorithm that uses a hash value to guarantee the integrity of a message.
Exam with this question: 8.4.2 Module Quiz - VPN and IPsec Concepts
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