Which three security services are provided by digital signatures? (Choose three.)

Which three security services are provided by digital signatures? (Choose three.)

  • authenticates the source
  • authenticates the destination
  • guarantees data has not changed in transit
  • provides data encryption
  • provides nonrepudiation using HMAC functions
  • provides confidentiality of digitally signed data
    Answers Explanation & Hints:

    Digital signatures are a mathematical technique used to provide three basic security services. Digital signatures have specific properties that enable entity authentication and data integrity. In addition, digital signatures provide nonrepudiation of the transaction. In other words, the digital signature serves as legal proof that the data exchange did take place.

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