How is the hash message authentication code (HMAC) algorithm used in an IPsec VPN?

IT Questions BankCategory: CCNA 3 v7How is the hash message authentication code (HMAC) algorithm used in an IPsec VPN?

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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