Which of the following statements about MD5 Routing Updates
authentication is valid? (Select two )

A.
The MD5 algorithm inputs the routing updates of arbitrary length and outputs a 128-bit hash

B.
The MD5 algorithm inputs the routing updates of every 64bit length and outputs an 8-bit hash

C.
Multiple keys are supported

D.
Routing updates packets are delivered in encrypted messages

E.
Shared secret keys are delivered in encrypted messages