Question: ElGamal cryptosystem Select p=89, find the smallest generator g; Select a=29, b=23 and A's secret key k=57; Encrypt and decrypt message m=72. Please show step-by-step

ElGamal cryptosystem

Select p=89, find the smallest generator g;

Select a=29, b=23 and A's secret key k=57; Encrypt and decrypt message m=72.

Please show step-by-step so it's easy to understand how answer was derived. Thank you

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