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Which of the following types of cryptography is being u…

A company uses PGP to ensure that sensitive email is protected. Which of the following types of cryptography
is being used here for the key exchange?

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A.
Symmetric

B.
Session-based

C.
Hashing

D.
Asymmetric

Explanation:
PGP combines symmetric-key encryption and public-key encryption. The message is encrypted using a
symmetric encryption algorithm, which requires a symmetric key. Each symmetric key is used only once and is
also called a session key.

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