CISSP Official Practice Tests by Mike Chapple, David Seidl

314 Chapter 12 ■ Practice Test 4

124. What email encryption technique is illustrated in this figure?

q4fzNeBCRSYo

Data

Data Encrypted Key

Encrypted Message

Generate

Random

Key

Encrypt key

using receive

public key

Random Key

Encrypt

RSA

TlakvAQkCu2u

Encrypt data

using randon

key

q4fzNeBCRSYo

Data

Data

Encrypted Message

Encrypted Key

Decrypt

Decrypt using

receiver’s

private key

RSA

TlakvAQkCu2u

Decrypt data

using key

A. MD5

B. Thunderbird

C. S/MIME

D. PGP