We consider the affine cipher that transforms a message M into ciphertext CasC= (19 - M + 6) mod 31.The message can be recovered by an affine transformation of the form M = (a C +b) mod 31.Determine the constants a and b.

Given ciphertext C to transform the message M. C = (19.M + 6) mod 31 Example : consider a value for…

consider the affine cipher that transforms a message M into ciphertext C as (19 - M + 6) mod 31. message can be recovered by an affine transformation of the form M = (a C +b) mod 31. ermine the constants a and b.

consider the affine cipher that transforms a message M into ciphertext C as (19 - M + 6) mod 31. message can be recovered by an affine transformation of the form M = (a C +b) mod 31. ermine the constants a and b.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

We consider the affine cipher that transforms a message M into ciphertext Cas
C= (19 - M + 6) mod 31.
The message can be recovered by an affine transformation of the form M = (a C +b) mod 31.
Determine the constants a and b.

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