1.

A. In a hybrid design, it is best to choose the ___________-key length that is ______ secure than the ______________-key length.

asymmetric, twice as, symmetric

asymmetric, as, symmetric

asymmetric, more, symmetric

symmetric, more, asymmetric

B.

NP contains all problems solvable in _________________ time on a deterministic machine.

polynomial

exponential

half-exponential

super-polynomial

C.

ter 1976, symmetric algorithms ___________________ for data encryption.

had limitless uses

were still used

had limited uses

were no longer used