Which of the following security features do email signatures provide?

The correct answer is A. Non-repudiation. Email signatures, often implemented using digital signatures, provide non-repudiation by verifying the identity of the sender and ensuring that the email has not been tampered with during transit. Non-repudiation means the sender cannot deny having sent the email because the…

Submitted by viktor_hu· Mar 6, 2026Security Engineering

Question

Options

ANon-repudiation
BBody encryption
CCode signing
DSender authentication
EChain of custody

How the community answered

(21 responses)

A
90% (19)
C
5% (1)
E
5% (1)

Explanation

Email signatures, often implemented using digital signatures, provide non-repudiation by verifying the identity of the sender and ensuring that the email has not been tampered with during transit. Non-repudiation means the sender cannot deny having sent the email because the digital signature is uniquely tied to the sender's private key.

Community Discussion

No community discussion yet for this question.

Full CAS-005 Practice