Why would HMAC be used to help secure the data as it travels across various links?

IT Questions BankCategory: CCNA SecurityWhy would HMAC be used to help secure the data as it travels across various links?

Why would HMAC be used to help secure the data as it travels across various links?

  • It is an asymmetric encryption algorithm used when the two communicating parties have not previously shared a secret key.
  • It is a hashing algorithm used to guarantee that the message is not a forgery and actually comes from the authentic source.
  • It is a hashing algorithm used to encrypt the message and guarantee that no one intercepted the message and altered it.
  • It is a popular symmetric encryption algorithm used when each communicating party needs to know the pre-shared key.

Explanation: MD5 is a hashing algorithm that guarantees that no one intercepted the message and altered it. Advanced Encryption Standard (AES) is a popular symmetric encryption algorithm where each communicating party needs to know the pre-shared key. Public key infrastructure (PKI) is an asymmetric encryption algorithm based on the assumption that the two communicating parties have not previously shared a secret key. HMAC is a hash message authentication code that guarantees that the message is not a forgery and actually comes from the authentic source.

Exam with this question: Module 15: Quiz – Cryptographic Services Network Security

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