131. Which is not true about fair cryptosystems?

Вариант ответа 1 - A. It splits the private key into different parts.

Вариант ответа 2 - B. It gives law enforcement access when legally authorized.

Вариант ответа 3 - C. It escrows the separate key parts with separate escrow agencies.

Вариант ответа 4 - D. It uses a tamper proof chip.