the __________ was used as the standard field system by the British Army in World War I and was used by the U.S.Army and other Allied forces during World War II.
A) Caesar cipher
B) Playfair cipher
C) Hill cipher
D) Rail Fence cipher

Question

Quizplus · Accepted Answer

The Playfair cipher was used as the standard field system by the British Army in World War I and was also used by the U.S. Army and other Allied forces during World War II. It was considered a strong encryption method at the time due to its simplicity and ease of use in the field.

The __________ Was Used as the Standard Field System by the British