
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:Find the greatest common divisor of 26 and 5
using Euclidean algorithm.
An encryption function is provided by an affine
cipher f:X → X, f(x) = (5x + 8)mod 26, X = {1,2, ... ,
26} Find the decryption key for the above affine
cipher. Encrypt the message with the code 15
and 19.
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