What key size is used by the Clipper Chip?

A.
40 bits

B.
56 bits

C.
64 bits

D.
80 bits

Explanation:
“Each Clipper Chip has a unique serial number and an 80-bit unique unit or secret key. The unit key is
divided into tow parts and is stored at two separate organizations with the serial number that
uniquely identifies that particular Clipper Chip.” Pg 166 Krutz: The CISSP Prep Guide