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Cryptology - Unofficial St. Mary's College of California Web Site

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212 CHAPTER 10. TRANSPOSITION CIPHERS<br />

Plain<br />

Hurlbut<br />

Sherman<br />

movements<br />

enemy<br />

Prentiss<br />

Price<br />

rear<br />

advances<br />

Missouri<br />

10:30am<br />

Halleck<br />

Code<br />

bear<br />

Blubber<br />

zebras<br />

wiley<br />

valley<br />

query<br />

world<br />

wafers<br />

chorus<br />

Clara<br />

applause<br />

Figure 10.4: Codewords for keyword McClellan.<br />

11. Cipher No. 7 was used early in the Civil War.<br />

To Louisville, Ky. Sept 29, 1862<br />

Colonel Anson <strong>St</strong>ager, Washington 16<br />

Austria await I in over to requiring orders olden rapture blissful for<br />

your instant command turned and instructions and rough looking further<br />

shall further the Camden me <strong>of</strong> ocean September poker twenty I<br />

the to I command obedience repair orders quickly pretty Indianapolis<br />

your him accordingly my fourth received 1862 wounded nine have<br />

twenty turn have to to to alvord hasty.<br />

(signed) William H. Drake<br />

The keyword Austria indicates that this has nine lines, and is to be read<br />

U1, D6, U2, D3, U5, D4. The only codeword in this message is “Camden,”<br />

Major General G. H. Thomas. By this time <strong>St</strong>ager had regularized the<br />

location <strong>of</strong> the blind words: always insert one at the end <strong>of</strong> a column being<br />

pulled <strong>of</strong>f.<br />

Decipher the message.<br />

12. [Antonucci] <strong>St</strong>ager’s Cipher No. 12 was used from September 1862 until<br />

August 1864. It had many code words, for times <strong>of</strong> days, prominent<br />

<strong>of</strong>ficers, place names, and even commonly used words and phrases. For<br />

example, in the following message Arabia is Major General Don Carlos<br />

Buell, Adam is Major General Henry Halleck, and Lincoln is Louisville,<br />

KY.<br />

Louisville, Ky. Sept 30, 1862 To George C. Maynard, Washington<br />

Regulars ordered <strong>of</strong> my to public out suspending received 1862 spoiled<br />

thirty I dispatch command <strong>of</strong> continue <strong>of</strong> best otherwise worst Arabia<br />

my command discharge duty <strong>of</strong> my last for Lincoln September period<br />

your from sense shall duties the until Seward ability to the I a removal<br />

16 Since <strong>St</strong>ager was the head <strong>of</strong> the Military Telegraph Office in Washington, during some<br />

years most messages to Washington were sent to his name. Likewise, Drake must be the<br />

telegraph operator stationed with the commander the message is for, Major General D.C.<br />

Buell in this case.

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