5.3. Explain basic encryption concepts and map various algorithms to appropriate applications.
The Security+ exam assumes you'll be able to differentiate between symmetric and asymmetric cryptography systems as well as hashing algorithms. You should be able to recognize specific examples of all three forms of cryptography.
5.3.1. DES
DES was addressed in the "Symmetric key" section earlier in this chapter.
5.3.2. 3DES
3DES was addressed in the "Symmetric key" section earlier in this chapter.
5.3.3. RSA
RSA was addressed in the "Asymmetric key" section earlier in this chapter.
5.3.4. PGP
Pretty Good Privacy (PGP) is another e-mail security and encryption product that functions in much the same way as S/MIME (see discussion of S/MIME later ...
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