Each of the following is a true/false statement about a tweakable block cipher (TBC). Place a checkmark next to each true statement.(1) Because of its extra features, a TBC is always much slower than a regular block cipher.(2) A good TBC allows change of the key with little computational cost.(3) A good TBC allows change of the tweak with little computational cost.(4) A tweakable block cipher is a prominent part of the design of GCM.(5) Each time a new tweak is given to a TBC, the TBC behaves like a new random function.(6) Each time a new tweak is given to a TBC, the next output of the TBC is uniformly distributed.

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