Decrypt the ciphertext provided at the end of the section

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Reference no: EM131241473

1. Decrypt the ciphertext provided at the end of the section on mono-alphabetic substitution ciphers.

2. Provide a formal definition of the Gen, Enc, and Dec algorithms for the mono-alphabetic substitution cipher.

3. Provide a formal definition of the Gen, Enc, and Dec algorithms for the Vigenre cipher. (Note: there are several plausible choices for Gen; choose one.)

Reference no: EM131241473

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