Question: Suppose RSA-OEAP is used, where the hash function G has a bug and outputs the all zero string. Show how an attacker can (with probability

Suppose RSA-OEAP is used, where the hash function G has a bug and outputs the all zero string.
Show how an attacker can (with probability at least 1/2) break the IND-CCA security of RSA in this case.

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