Question: Using an affine cipher with the encryption keys a=9, b=7, the ciphertext that corresponds to the plaintext UMASS is . The decryption keys are c=

Using an affine cipher with the encryption keys a=9, b=7, the ciphertext that corresponds to the plaintext UMASS is . The decryption keys are c= and d= where x=c*y+d mod 26.

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