1.

What is the formula used for encryption of data using affine cipher(a,b are constants and x is the numerical equivalent of a letter to be encrypted)?

A. ax+b
B. (ax+b)%26
C. ax<sup>2</sup>+bx
D. (ax<sup>2</sup>+bx)%26
Answer» C. ax<sup>2</sup>+bx


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