(a) Decipher “GDZKXG”, assuming an affine cipher [5,t] was usedand that the cleartext is a name. (b)

(a) Decipher “GDZKXG”, assuming an affine cipher [5,t] was usedand that the cleartext is a name. (b) Decipher “SXWGR”, assuming an affine cipher [s,3] was usedand that the cleartext is a name. (c) Prove that a multiplication of the letters of an alphabet bya number t produces a cipher if and only if t and 26 are relativelyprime. . . .