Which of the following issues is not addressed by digital signatures?

The correct answer is D. denial-of-service. Digital signatures address three core security properties: (1) Authentication - they verify the identity of the signer via the private key; (2) Non-repudiation - the signer cannot later deny signing because only they hold their private key; (3) Data integrity - a hash of the…

Submitted by hassan_iq· Apr 18, 2026Cryptography

Question

Which of the following issues is not addressed by digital signatures?

Options

Anonrepudiation
Bauthentication
Cdata integrity
Ddenial-of-service

How the community answered

(24 responses)

C
4% (1)
D
96% (23)

Explanation

Digital signatures address three core security properties: (1) Authentication - they verify the identity of the signer via the private key; (2) Non-repudiation - the signer cannot later deny signing because only they hold their private key; (3) Data integrity - a hash of the message is signed, so any tampering invalidates the signature. Denial-of-service (DoS) attacks aim to make a service unavailable by overwhelming it with traffic or requests - this is a network/availability concern that cryptographic signatures have no mechanism to prevent.

Topics

#Digital Signatures#Cryptography#Nonrepudiation#Denial-of-Service

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