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