Math 4410/5410 homework assignment 2

Some Substitution Examples


Hints are written backwards to prevent accidentally reading a hint.

Answers can be found after 3 hints, or directly from clicking on the problem number.


1. A simple substitution cipher: (hint)
BUOBP OBPOB VLMUP GSEBL DSKUG BPOBA LTUGB HNOPA UNOHM HKOQG UMHKO BUXPK ULFIU SLFUG ONOHA KUPOU GOUKI KLNUN ULOBU KHMTL KOQUH KFLNE BLUMZ
2. Another simple substitution cipher: (hint)
JNIJK JNRFA KRJNQ HKNNR KAWOK RIPNK VWOJF APRVG RQYRK JCVHK NVHYE JNAWZ NRWRG RQPVH YEQRP IUJHQ RJNRS AQKJS AWRPI QRYRK KQIUJ HQRYZ
3. A bit more complex: (hint)
PQXEJ FVEGY MNYNY IUFRD SGVRI LPSGZ TMESI RKNYI GPERW GRRND LOJNT YIDXO TYCIP CREVC ESGOI RLISI RZQEU CGLTC IXHYI XHELE KYJEK PXIEY RRSLH DLIFY GPRJG SDICE
4. A more complicated substitution: (hint)
LVPRV SFPTY JSPHL FRCEU SBOSZ PHJFZ NSOAP KTTVV ZCFRJ XCCTP WWRHK EWYUK WGLNU XCCTP XWGER FRZNV ZOWFJ WQZNU KWYOE WMPAI
5. And yet another: (hint)
TWGJC NIUJX CSLSK KBNVG WIPSU QIUJA ULJUZ HBEVJ VMAOH GGLTP DGLEY SSLAF IMJSW QIUMO NNFLV HIUIZ DQKVY RTWHI MRFEU KPNOV YTKEF NVQNO T
6. Something with a bit of flair. (hint)
History: Detective Gettamann, investigating the murder of Francis V. Bacon, well-known traveler, explorer, and connoisseur, has found this message in an envelope addressed to Wm. K. Pierce, former traveling companion of the deceased. Death had occurred during sleep; caused by strangulation with a red silk thread. Only clues found: a few grains of sand on the kitchen floor and what appears to be an oriental turban.

YGNG CRFV FZRI OUKZ CWOW BQGQ IHHL YWEG NGQM WXRT KPVE CAIG QIVD QIGN GZIZ QYQR HYNG XNAB AKOX NYWC WCTN OXDH NEIH IHYR ISQY WCHI UIUI IRQE WSRW LGWR ABGW VWCA RQXM ERQM RECW ZIRQ XWQW GHYC AYYO VONE RLPG CGWI NXVW CANX QMLH IGRQ WTGO UIGZ EGXN IWOU XTWO LHIG RQXM WSQY TXIR IQXM OGDU ABRM AKUM RGZR XAPM RWLD KGHI XKLC RTKP VEFO NXXK WRWS QYUR ZXYL ATUI RHTR AVWS DHWQ PMAK IWOU WTDE IRWX RQXZ SIGU QNIR XNIR YNIG GYTR ZXYU RUYL IQYA RUKG QMPD QMIY HAWS FERW GHRB HAQI QMGI QCQR ULWV ABNX GOHA FRIY QYBM QMYH NGIQ RUYL IQBL POQM RUGU IRTX SIGQ LQDX XOEV BMCR FVGV ABGE RZGQ YHHA RWYM NEYM BLVW PS


Return to <a href="m5410.html">Math 4410/5410 HomePage </a> <hr> Hint 1 for question 1

.llun a si Z tsal ehT

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Hint 1 for question 2

.sllun era ZY gnidne ehT

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Hint 1 for question 3

.gnihctaw htrow si margirt detaeper ynA

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Hint 1 for question 4

.elbissop syawla era srebmuN

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Hint 1 for question 5

.srevlos tsgnoma noitanretsnoc taerg desuac, 5391 lirpA ni detalucric, margotpyrc sihT

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Hint 1 for question 6

.margotpyrc riafyalP a si sihT

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Hint 2 for question 1

g a sa srehpiced y

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Hint 2 for question 2

. c a sa srehpiced p

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Hint 2 for question 3

.erenegiV a si sihT

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Hint 2 for question 4

.erenegiV a si sihT

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Hint 2 for question 5

.erenegiV a si sihT

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Hint 2 for question 6

. 21 si htgnelyek

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Hint 3 for question 1

."stnemidepmi" si drow elbissop A

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Hint 3 for question 2

."hsurht" si drow elbissop A

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Hint 3 for question 3

8 si htgnelyek

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Hint 3 for question 4

5 si htgnelyek

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Hint 3 for question 5

8 si htgnelyek

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Hint 3 for question 6

."lliB raeD" strats margotpyrc ehT

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Answer to question 1

He that hath wife and children hath given hostages to fortune, for they are impediments to great enterprises either of virtue or mischief. (Bacon)

KEY: Presumably, remaining letters in normal order.

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Answer to question 2

That's the wise thrush. He sings each song twice over

Lest you should think he never could recapture

The first fine careless rapture. (Browning)

KEY: Impersonal, remaining letters in reverse order.

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Answer to question 3

After learning the fundamentals of ciphers there are many short cuts to be learned in order to become cipher experts. These save time and add to our enjoyment.

KEY: Pleasure

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Answer to question 4

There are three hundred and sixty five days, five hours forty eight minutes and forty five and one half seconds in one year.

KEY: Solar

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Answer to question 5

Solving ciphers is a fascinating pastime. The true fan gets his reward from having solved a tough cipher regardless of the time factor.

KEY: Bivouacs

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Answer to question 6

Dear Bill, Perhaps it may seem peculiar that I should write after all these years, and no doubt it is. Do you remember the time we were hunting in India and we stole the little statue of Buddha; pure gold it was and was the priest mad. Well, I saw the same priest on the street today and I know he is looking for me. So, if I should pass on in the next few weeks I want you to know that my greatest treasures are buried sixteen feet due north of the county line on route thirty seven and as a double check they are ten feet from the nearest tree. Good Luck Bill and I'll see you in church. Frank

KEY: Unwaveringly

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