The following two problems are from a separate situation, butstill using the same notation for the decryption matrix,
6.) Let's suppose we are working on the assumptionthat th→FB, and we get the possible relation f=−3−3e. Thedigrams following FB in the ciphertext are:QV, FI, WF, XY, KL, BW, QJ, TA
For each one find what values of e (the entryin N) decrypts it to something of the form e⋆. (We aretrying to find the value of e that gives a plaintext withlots of "the" strings.)
7.) For the previous question, you should have foundthat f=−3−3e did not lead to many "the" strings in theplaintext, even using the "best" value of e. For this problem,repeat what you did, but using f=10−3e. What do you thinkthe correct top row of N is?
The following two problems are from a separate situation, but still using the same notation for the decryption matrix, 6
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