ImplementationQuestion 62 of 100
Which property ensures a sender cannot later deny having sent a signed message?
a.Confidentiality
b.Availability
c.Anonymity
d.Non-repudiation
Explanation
Non-repudiation prevents a party from convincingly denying an action, such as sending a digitally signed message. It relies on the private key being unique to the signer. Digital signatures and reliable logs provide non-repudiation.
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