Question: Problem 1: (18 points) Secure encryption scheme and OTP (3+3+4+4+4) (a) (3 points) Write down the input and output of three functions (algorithms) of an

Problem 1: (18 points) Secure encryption scheme and OTP (3+3+4+4+4) (a) (3 points) Write down the input and output of three functions (algorithms) of an encryption scheme. (b) (3 points) Prove the correctness of One-time pad encryption scheme, (c) (4 points) Define perfect secrecy and computational secrecy using the indistinguishability game model. (a) (4 points) Prove the One-time pad encryption scheme is perfectly secure. (e) (4 points) Show that the Many time pad encryption scheme is insecure. Problem 1: (18 points) Secure encryption scheme and OTP (3+3+4+4+4) (a) (3 points) Write down the input and output of three functions (algorithms) of an encryption scheme. (b) (3 points) Prove the correctness of One-time pad encryption scheme, (c) (4 points) Define perfect secrecy and computational secrecy using the indistinguishability game model. (a) (4 points) Prove the One-time pad encryption scheme is perfectly secure. (e) (4 points) Show that the Many time pad encryption scheme is insecure

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