Question: Select all that apply. A good stream cypher should have which of the following characteristics? A. key must be smaller than 128 bits B. a

Select all that apply. A good stream cypher should have which of the following characteristics?

A. key must be smaller than 128 bits

B. a large period

C. output appears random

D. Key must be larger than 128 bits

E. faster than block cyphers

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