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Determine plaintext and key from affine cipher

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Reference no: EM1354720

Q1) Below are given of ciphertext, from Affine cipher. Determine the plaintext and key. Give a clearly written description of the steps you followed to decrypt each ciphertext. This should include all frequency analysis and computations you performed. If you write a C/C++ program to help you, hand in the source code as well.

Affine cipher:

KQERE JEBCP PCJCR KIEAC UZBKR VPKRB CIBQC ARBJC VFCUP
KRIOF KPACU ZQEPB KRXPE IIEAB DKPBC PFCDC CAFIE ABDKP
BCPFE QPKAZ BKRHA IBKAP CCIBU RCCDK DCCJC IDFUI XPAFF
ERBIC ZDFKA

Reference no: EM1354720

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