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.