Which block cipher has key length of 128 bits?
A. IDEA
B. CAST
C. Both of the mentioned
D. None of the mentioned
Answer:A
Which block cipher has key length of 128 bits?
A. IDEA B. CAST C. Both of the mentioned D. None of the mentioned
Explanation: The block ciphers IDEA and CAST has key length of 128 bits where as Triple-DES has key size of 168 bits.