Math 390 Cryptography
Central College, Spring 2001
Group Assignment 2
-
Affine encrypt (no spaces or punctuation) a message of roughly 30 characters
that discloses your group's favorite type of fruit.
-
Use a keyword encrypted substitution cipher to describe your favorite foods
for breakfast, lunch and supper (at least one sentence for each meal).
Your keyword should be your favorite cartoon character's name. This message
will have spaces in it, denoting where words begin and end.
-
Use another keyword substitution cipher, or an affine cipher plus gibberish,
to state whether you prefer diet or regular pop, and whether you like caffeine
or caffeine-free drinks. If you use an affine cipher, your gibberish is
limited to 10% of the total number of characters and must occur at the
beginning and-or end of your message. Message 3 should be 200 characters
or less.
Group 1
Message 1
UIBZWTUBGXOZBIGXGMHNIOWKWTOSWSXIMRIGSO
Message 2
OT LPT LKK EYXTP EMLPD LQR KVGT WQ KVSYVR RVTDE VD CWQEVEDE
WH OLDTP CWWPE LQR ILDDTPZ LCVR HWP LKK MTLKE OT LPT LKEW GTULQE
Message3
ABOITOUYYUMOGHJYSSXUASPYXBJPXHSVYJXSPNCWIVOIHSCHSXUAIUVYCE
YEHOECJXSPOISSPCSUCHSGCNSYBSCHSYONCHTCBSCQY
Group 2
Message 1
MATCTMAXEROLMTYPGRTAYPYEXOXOSOE
Message 2
XI YWR BGSIXIV PRSRKM XL VGGQ TGS MDIPW PDXTL WKL KERLGBR
WGKVXRL KY TXCR
GPMGPA MKLKVIK XL HDBBH
Message 3
VRZHZVRWZDQKEJDEZDFZDEJSDUBEOJKPJYZDCZRHFZDDNDBWYPMDCOKBJUYBRZDEVOUDTPQREKGD
QNUYBRZYQEODDBDUDZJRIDZKEYEJDDWQVGDZJDQVGDEBJDSOKBJHZDYBDTRIDZYUBXDYQ
Group 3
message 1
HJHCFMRILFKTXQMZKZMHQMRDFIXSTIIGZDYZHMDGFRDZRXIFJHIFZX
message 2
OZFYK ZKG JTVEH ZTU HEZAIUH YS OTUZPVKJ YBT SZHE STVUG
MBFFQVKV SVIIH YBT HEYNZFQH XQUK EQU HBK VH QVJQ GBTVKJ TYNZKFU QYBT XU
FTZRU FZKGVUG LZNH ZE FBVSH
message 3
HNGREOJSECVAYLVWDPEOLVYULCEDYKELVYULCMWZZEALOSRWJPUHWYZVBEOIBUVULKZODWCKYJRELCUTBM
DJEIWLVAWZHWETMIWLCUTABUKBSYGWCOCBMXWJRMDJULGULICUTEPVBUCDJULGAWIYULYLWQOUHYZWLVDE
CWEPHUHYJULABUKBKELVYULCVJUSWVBMZTYLVBULWHNMZTY