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Cryptography

5 PYQ across 2 exams · 2021–2026 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CISF 2021 → ESE 2026
20211 PYQ
CISFQ147
Which one of the following is not a public-key cryptographic algorithm ?…
20231 PYQ
CISFQ126
What is a system of a secure key pair consisting of a private key for creating a digital signature and a public key to verify the digital si…
20263 PYQs
ESEQ31
In an RSA system, the public key of a given user is e = 65, n = 2881. What is the private key of this user ?…
ESEQ32
What happens if a k value used in creating a Digital Signature Algorithm (DSA) signature is compromised ?…
ESEQ38
In cryptography, to construct an unbreakable cipher text, which one of the following logical operations is used in one-time pads ?…
Related concepts — explore their timelines too
Digital signature
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