A simple algorithm that will take the initial key and from that generate a slightly different key each round.

A simple algorithm that will take the initial key and from that generate a slightly different key each round.
A . Key Schedule
B. Feistel Network
C. SHA-2
D. Diffie-Helman

View Answer

Answer: A

Explanation:

Key Schedule

https://en.wikipedia.org/wiki/Key_schedule

In cryptography, the so-called product ciphers are a certain kind of cipher, where the (de-)ciphering of data is typically done as an iteration of rounds. The setup for each round is generally the same, except for round-specific fixed values called a round constant, and round-specific data derived from the cipher key called a round key. A key schedule is an algorithm that calculates all the round keys from the key.