Question: Please help to answer below. Just leave it and do not answer if you really don't know how to answer, instead of copy-pasting other unrelevant
Please help to answer below. Just leave it and do not answer if you really don't know how to answer, instead of copy-pasting other unrelevant things. I will report. Thanks in advanced.

3 Task Three: Analysis of Substitution Cipher (2 marks) Consider the following mapping Can the function f(x)=xk(mod26) be used as a cipher where k>1 is the key and x is a letter to be encrypted? Justify your
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