How many encryption key bits are needed to double the number of possible key values that are available with a 40-bit encryption key?
A. 41 bits
B. 80 bits
C. 120 bits
D. 160 bits
How many encryption key bits are needed to double the number of possible key values that are available with a 40-bit encryption key?
A. 41 bits
B. 80 bits
C. 120 bits
D. 160 bits