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

IT Questions BankCategory: CCNA CyberOpsWhich three security services are provided by digital signatures? (Choose three.)
Which three security services are provided by digital signatures? (Choose three.) 1ITExamAnswers Staff asked 6 months ago

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

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

Explanation: Digital signatures provide three basic security services:
Authenticity of digitally signed data – Digital signatures authenticate a source, proving that a certain party has seen and signed the data in question.
Integrity of digitally signed data – Digital signatures guarantee that the data has not changed from the time it was signed.
Nonrepudiation of the transaction – The recipient can take the data to a third party, and the third party accepts the digital signature as a proof that this data exchange did take place. The signing party cannot repudiate that it has signed the data.
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