What is the function of the Hashed Message Authentication Code (HMAC) algorithm in setting up an IPsec VPN?

  • guarantees message integrity
  • authenticates the IPsec peers
  • protects IPsec keys during session negotiation
  • creates a secure channel for key negotiation
    Answers Explanation & Hints:

    The IPsec framework uses various protocols and algorithms to provide data confidentiality, data integrity, authentication, and secure key exchange. The Hashed Message Authentication Code (HMAC) is a data integrity algorithm that uses a hash value to guarantee the integrity of a message.

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