GATE CS 2014 Set 1 — Question 34

MCQ+1 / -0.33EasyDigital Signatures & CertificatesApplication LayerComputer Networks

Computer Networks → Application Layer → Digital Signatures & Certificates

Last updated 5 September 2026

Question

Which of the following are used to generate a message digest by the network security protocols? (P) RSA (Q) SHA-1 (R) DES (S) MD5

Correct answer (C) Q and S only Solution A message digest is a fixed-size numeric representation of the contents of a message, computed by a hash function. (P) RSA: Asymmetric encryption algorithm (used for encryption/digital signatures). (Q) SHA-1 (Secure Hash Algorithm 1): A cryptographic hash function used to generate message digests. (R) DES (Data Encryption Standard): Symmetric encryption algorithm. (S) MD5 (Message Digest Algorithm 5): A cryptographic hash function used to generate message digests. Therefore, Q and S are used to generate message digests. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (C) Q and S only Solution A message digest is a fixed-size numeric representation of the contents of a message, computed by a hash function. (P) RSA: Asymmetric encryption algorithm (used for encryption/digital signatures). (Q) SHA-1 (Secure Hash Algorithm 1): A cryptographic hash function used to generate message digests. (R) DES (Data Encryption Standard): Symmetric encryption algorithm. (S) MD5 (Message Digest Algorithm 5): A cryptographic hash function used to generate message digests. Therefore, Q and S are used to generate message digests.

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