Question: 1. Decrypt the cipher text ZLPBZCHGRE using Additive cypher with key = 13 2. Decrypt the cipher text EGTCFMOCDQHPHIDYDX using play fair 5*5 with

1. Decrypt the cipher text "ZLPBZCHGRE" using Additive cypher with key = 13 2. Decrypt the cipher text " EGTCFMOCDQHPHIDYDX" using play fair 5*5 with key="yuoorf

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