Which one of the following is an asymmetric algorithm?

A.
Data Encryption Algorithm.

B.
Data Encryption Standard

C.
Enigma

D.
Knapsack

Explanation:

Merkle-Hellman Knapsack is a Public Key Algorithm Pg 206 Krutz: CISSP Prep Guide: Gold Edition. Not
A: “DES describes the Data Encryption Algorithm (DEA) and is the name of the Federal Information
Processing Standard (FIPS) 46-1 that was adopted in 1977…” pg 195 Krutz: CISSP Prep Guide: Gold
Edition. Not B: “The best-known symmetric key system is probably the Data Encryption Standard
(DES).” pg 195 Krutz: CISSP Prep Guide: Gold Edition. Not C: “The German military used a
polyalphabetic substitution cipher machine called the Enigma as its principal encipherment system
during World War II.” Pg 185 Krutz: CISSP Prep Guide: Gold Edition.