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Questions:
Question 1) De-cipher the following message using Vigenere
Cipher analysis tool You need to state the key length and key
itself and the message and compute the IC of period you selected.
Show your work when calculating IC (i.e. the letters, number of
letters, and the frequency of each one)
LHUK UYRGWE AN GU KHAGN NZ DOIWL VYG AF LBR YSMQ KBHZLED
KJRKV AE LBR TGTQ 4 SHQ OKO AJ FBCWR UKI NZ LHQ KUZK KHGLNRX KPQWX.
LUM AXJYNJQ HMNY BOK OZ LBR MSLMPS AULE 4 MFX F6 ZG
CAMHGKJAOL BNTVSTSER, HMT FZUG YLIXD FRGNEE LBR HDUD UUHYWD NQ
GBBANS GVWKUTE - S JEUTLQE GVZAGMLYQ HQ FMKNRX KHGLNRX KPQWXF.
ZZE IAXRX SPQJNHXW AXKI YKLS KGO FNGOF KIZK AMBJYFYAVQ EUPXG
STGNF CATT S MUGDLAO XRVLH AX ZVKDD, NMN VZ EAK AGCGUT FZY BBWRMDF
FNSRBFYFY GF FZY PGEEDS.
UAULHQJ JNXL OR LBNZ WQGSNVUF IE LBR YGFFOUEK HRAUYFYANS,
KBNXHEZAHT GFD OGFBX JEZVYEOFG. ESGFAFG TSM OKWN WFIJT LO PAUY AH
BALB, OAL IFK GBYL RQUYAZ VEHAWRY KHAO U GXWNP LIJGJDE DYFY
HRAUYFYWD, YGLR TSTGJUY-RGOWAHT OEASWM. JOLH FZY TGDAJQ M6 FGESGFA
UGK CAFNVTMEP GH GNST BSNU CZIOZ CF HGTT YIBJ SNP TUQ - G LRMAHRJ
WYQ HLRLWRE LBR TSTGJUY OEASWM, OAL TA S WNYMAX GVFKJVQJ "YKZJA
EZUEVWNUFA" NTV "DQLUVR" SRQ LBR YSMQ LBVTY.
IR QIH NSVQ KIZK WXBWLVKFCQ OCGN UAYWLNY, KAYKOAM YAXSRL Y6'K
PDG GBJW LQLM LUM TGFY GNW IYSAR AKIZY MYOVEDK - GNTMAX XIPAK,
EJHIFAJE OGGCKFSMLCBT, SS IWFY GK HUYBYOYHFK/MUGVOIK, VHZ
MNRGLGAFAFWFL, ZZEDW CF TG STSLCTWSE KFVJWR.
Question 2) Using statistical analysis only on Caesar cipher,
decrypt this cipher. Show your work in detail. Do not use brute
force
yeuutkfuqkqetwfjcuug
Question 3) Alice wants to send BOB a message and hide it
from her kids. You have been selected to advise her on how to do
that. The message is
Get ice cream
Your job is the use RSA and pick public and private keys
(diffrent from the book) to make sure the message is authentic and
confidential
You need to pick the p,q and everything else for Bob and
Alice
Show the message after applying Ek(m) and de-cihper with your
Dk(C). Show your work
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