The following message was enciphered with a Vigenère cipher.
aikiaawgfspxeppvjabjnivulfznzvkrlidamsmyamlvskniyffdpbwtnxsvvbtnamvltsefoeycztkomylmerkwrs
deusjgecmzkwvnreeypnnosdahjepkujejwttymoeatnvtipafsvgjnvtrlkauiwertshdtasqmfaooltxjiehrzmcpcosdiz
szukzezpeoehevrrajlsarlmzjimayddscnyzsyahnczucvqnkptywmedpbllwqedpzliuagieysaljtismaeowzllghpiifijt
padeegedszfgrtsuikhnyrucqhbpcaugqnymeujscppdrxxrrehzkarevauemgttnxvvvnvdiazvnrwyaprdlneqjbxsaj
gzrrnodwetrziearwucydsxpharvnmrwdolllnmatffweeeuifxbtsegjiziprcwetuphrkwreytywqghconfmaaetywhreae
evavtsbfllzaycywwgecccmffaydeganrdeespseltljmagtnkzivrqiikxsofrdsxphpsffxueqiolyeewijlwbpprystfiesegw
hrarzkighltkzivrqiikxrvprkjmctztywizicakwwpoxejomghehvewgiwlcgsxiygwgvghpiixmesepfargszfkzifelsffwniyt
jsvrtseffpltpadarghppiwqveclvskhejeklsteeowxxuexaiceadehvjinrppcwrgyzfjlegslrfmrqsfgxwwgiyggjszoeeulin
mdwygpbsptywmeftrjlxurpexsqrslrvvsbmpdfxgbucsvllryweuskniysktsghnikqeadfnzliqsnoiartthitwmaelcyyeze
ehvzszeoewwegtztygwrthocsxrrzbzfznnaeikmrgzackjbrfnzliqmfskzeiemevftnreitmpnrwyxspyiygrfhghptnwrgy
oewwegbjwzyeaaeskeeeydijhvrctsvdcghpsfjxbfcejmpgtsepzeieeornsvdtfkzilrptfymieehvewrlgejshrcpnkuln
nnefxwgajieyycacsvfeywprvaqcrpsjazrllsklmzezukarntheelcjiyakdmiecpfgpjiehcmonsaougpfktaevwnneits
dbrwajuseiygkzivrqiikxtolljxsetsetdyotsepoieelljgeespnrdwsicskysnldowllrspajgrzodtcqqvsqiiartaeoewiad
ehvyyanprjzeiemevfwbltdrlxueztywvrnoowllrptttzxurpetdinndhvwxfiyaigazavejaxghpccmffbpskkxnretfswra
doeviseyszniyyqoiwmtheyvakutjerjwghpymwrrvprxgrrfzuiyezedwzllbuecffgrdtnxsxghpsksvgoqajwefoyiellrtz
puazvstoesrqielctivneeiwwgiygkgwretfcswgspajgrftzpjuseecszfxuenhretvoysyatrirhkqjvvpcrfxeofbcwxuexhv
jinfeeizeiiygjgqrsfctwwfarazfwgtsedsrphpskwvplfbjaxfbpeesauiwejarpeehvkigwzccmffllskeigiytywpraruvwzv
dpntwhoyehvxeptehrlwbuehretgoyscswgvtszlxbtsejwtnresnswntciglsuirhsmvlfzrrlabthoujejiytngxuofsrfhnno
ffmvghpiidefthiesanyltrjwrnlltsqrtheelcsigepweeslgfolrnoaefcjawlruifczrvvxuezncqkbawowllrglmvsvfeyaczei
eoodarntpdkzmfftxkmvriynfjxulznugrrvprjarpedoljgrbmcjhsetd
Show all your steps including:
? The Kasiski’s test
? Hypotheses of the probable period(s) and their assessment using index of coincidence calculations.
? Using correlation function<
a) (5pts) Perform a frequency analysis on the ciphertext and plot a figure that looks like the one shown below (this is slide 12 in CH02.pptx). How do both plots relate to one another?
b) (5pts) Kasiski’s test