Sam, a web developer, was instructed to incorporate a hybrid encryption software program into a web application to secure email messages. Sam used an encryption software, which is a free implementatio

Question

Options

• APGP
• BS/MIME
• CSMTP
• DGPG

• A
  1% (1)
• B
  4% (3)
• C
  3% (2)
• D
  91% (64)

Explanation

GPG (GNU Privacy Guard) is correct because it is a free, open-source implementation of the OpenPGP standard that uses a hybrid encryption approach - combining asymmetric-key cryptography for secure key exchange and symmetric-key cryptography for speed. This perfectly matches the question's description of a "free implementation" using both encryption types.

Why the distractors are wrong:

• A (PGP): PGP (Pretty Good Privacy) is the original OpenPGP-based encryption software, but it is a commercial/proprietary product, not a free implementation - GPG was created as its free alternative.
• B (S/MIME): S/MIME is another email encryption standard, but it relies on certificate authorities for key management and is not a free implementation of OpenPGP.
• C (SMTP): SMTP is simply an email transmission protocol, not an encryption tool at all.

Memory Tip: Think of GPG = "GNU = Free" - the GNU project is synonymous with free/open-source software, so whenever a question mentions a free OpenPGP implementation with hybrid encryption, GPG is your answer. The "G" in GPG stands for GNU, which is your clue that it's the free version of PGP.

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