In The Des Algorithm Although The Key Size Is 64 Bits Only #40
In the DES algorithm, although the key size is 64 bits only 48bits are used for the encryption procedure, the rest are parity bits.
This multiple choice question (MCQ) is related to the book/course
gs gs124 Introduction Cyber Security.
It can also be found in
gs gs124 Block Ciphers and the Data Encryption Standard - The Data Encryption Standard and Strength - Quiz No.1.