Digital Signatures MCQs

10 MCQs — Computer Networks MCQs

Practice Digital Signatures MCQs with correct answers and explanations. These questions are from the Computer Networks MCQs section.

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What can it be called, if an attacker determines the private key of the user, after breaking the signature scheme?

A. Universal forgery
B. Total break
C. Selective forgery
D. Existential forgery

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Which of the following is not a requirement of digital signatures?

A. Easy to produce
B. Easy to recognize
C. Easy to verify
D. Computationally feasible

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Who will be the involving parties in the direct digital signature scheme?

A. Source and destination
B. Source and third party
C. Destination and third party
D. Source and destination and third party

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Which of the following sentence is incorrect in case for digital signatures?

A. Signature key is of signing and public key for verification
B. Public key for verification and signature is for authentication
C. Signature key is for verification and public key for signing
D. Both signing and verification is done by public key

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What is the advantage of digital signing a hash instead of signing the entire data in RSA?

A. Time saving
B. Security
C. Time saving and computationally less expensive
D. Secured and less time requires

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Which of the following cannot be achieved by the digital signature in symmetric key encryption?

A. Message authentication
B. Data integrity
C. Non-repudiation
D. Security of the message

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Which of the following digital signature technique is based on elliptic curve cryptography?

A. Ecdsa
B. Dsa
C. Rsa pss
D. Rsa

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Which of the following is not a digital signature algorithm?

A. Ecdsa
B. Dsa
C. Rsa ? pss
D. Sha

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In which year, NIST proposed Elgamal algorithm in its new DSS(digital signature standard)?

A. 1993
B. 1992
C. 1991
D. 1990

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A signature function must be performed before the confidentiality function on a plain text in symmetric key digital signatures.

A. True
B. False
C.
D.

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