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CS KAIROS · LEARNING LIBRARY

M20 · Cryptography · Q&A

Check understanding with original scenarios and a reason for every option. These answers do not establish exam or practical readiness.

Scenario questions

ceh-m20-crypto-q1 · Original practice

Does successful signature verification establish confidentiality?

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B

The mechanisms serve different goals.
A signature can verify content and origin without hiding the message.
Public-key verification does not imply encrypted content.
Integrity and origin verification remain valuable.

ceh-m20-crypto-q2 · Original practice

How should a public download’s hash be assessed?

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C

Length does not establish provenance.
An ordinary hash does not authenticate a sender.
Consistency and reference trust both need consideration.
A hash is not ciphertext recoverable with a key.

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