Virus scanning and content inspection of SMIME encrypted e-mail without doing any further processing is:

The correct answer is A. Not possible. Content security measures presumes that the content is available in cleartext on the central mail Encrypted emails have to be decrypted before it can be filtered (e.g. to detect viruses), so you need the decryption key on the central "crypto mail server". There are several ways…

Submitted by jakub_pl· Apr 18, 2026Cryptography

Question

Options

ANot possible
BOnly possible with key recovery scheme of all user keys
CIt is possible only if X509 Version 3 certificates are used
DIt is possible only by "brute force" decryption

How the community answered

(43 responses)

A
95% (41)
B
2% (1)
D
2% (1)

Explanation

Content security measures presumes that the content is available in cleartext on the central mail Encrypted emails have to be decrypted before it can be filtered (e.g. to detect viruses), so you need the decryption key on the central "crypto mail server". There are several ways for such key management, e.g. by message or key recovery methods. However, that would certainly require further processing in order to achieve such goal.

Topics

#S/MIME#Email Encryption#Content Inspection#Cryptography Basics

Community Discussion

No community discussion yet for this question.

Full SSCP Practice