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( 2 0 pt ) Write a GQ signature scheme. Using the random oracle model, you can compute ( Z Z ' ) e =

(20pt) Write a GQ signature scheme. Using the random oracle model, you can compute (ZZ')e=H(ID)H(Y||m)-H'(Y||m) where Y=Re in the GQ. Assume that H(*) returns a 256-bit number and Z,Z',YinZN** where N is a 2048-bit. Using the previous problem, you can break the factoring problem of N if adversary can forge a signature in the GQ when N is a blum integer. Explain how to factor N.
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