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- Wadsworths_cipher abstract "Wadsworth's cipher was a cipher invented by Decius Wadsworth, a Colonel in the Ordnance Corps of the United States Army. In 1817, he developed a progressive cipher system based on a 1790 design by Thomas Jefferson, establishing a method that was continuously improved upon and used until the end of World War II.Wadsworth's system involved a set of two disks, one inside the other, where the outer disk had the 26 letters of the alphabet and the numbers 2-8, and the inner disk had only the 26 letters. The disks were geared together at a ratio of 26:33. To encipher a message, the inner disk was turned until the desired letter was at the top position, with the number of turns required for the result transmitted as ciphertext. Due to the gearing, a ciphertext substitution for a character did not repeat until all 33 characters for the plaintext letter had been used. Wadsworth never got credit for his design because Charles Wheatstone invented an almost identical machine several years after Wadsworth, and got all the credit.".
- Wadsworths_cipher wikiPageExternalLink Chap2-1.html.
- Wadsworths_cipher wikiPageExternalLink books?id=N11_m8SJGCMC&pg=PA67&lpg=PA67&dq=%22Decius+Wadsworth%22&source=bl&ots=_yFhKrz5dR&sig=NRucC6laUGLBPmQd_i0cPrP6rSU&hl=en&ei=CBz7SZ-5N4aEtweXtYi7BA&sa=X&oi=book_result&ct=result&resnum=41.
- Wadsworths_cipher wikiPageExternalLink timeline.html.
- Wadsworths_cipher wikiPageExternalLink cryptography.html.
- Wadsworths_cipher wikiPageID "4490660".
- Wadsworths_cipher wikiPageLength "1779".
- Wadsworths_cipher wikiPageOutDegree "9".
- Wadsworths_cipher wikiPageRevisionID "522060222".
- Wadsworths_cipher wikiPageWikiLink Category:Classical_ciphers.
- Wadsworths_cipher wikiPageWikiLink Charles_Wheatstone.
- Wadsworths_cipher wikiPageWikiLink Ciphertext.
- Wadsworths_cipher wikiPageWikiLink Colonel.
- Wadsworths_cipher wikiPageWikiLink Decius_Wadsworth.
- Wadsworths_cipher wikiPageWikiLink Ordnance_Corps_(United_States_Army).
- Wadsworths_cipher wikiPageWikiLink Thomas_Jefferson.
- Wadsworths_cipher wikiPageWikiLink United_States_Army.
- Wadsworths_cipher wikiPageWikiLink World_War_II.
- Wadsworths_cipher wikiPageWikiLinkText "Wadsworth's cipher".
- Wadsworths_cipher wikiPageUsesTemplate Template:Cryptography_navbox.
- Wadsworths_cipher subject Category:Classical_ciphers.
- Wadsworths_cipher hypernym Cipher.
- Wadsworths_cipher type Noble.
- Wadsworths_cipher comment "Wadsworth's cipher was a cipher invented by Decius Wadsworth, a Colonel in the Ordnance Corps of the United States Army.".
- Wadsworths_cipher label "Wadsworth's cipher".
- Wadsworths_cipher sameAs Q7959329.
- Wadsworths_cipher sameAs m.09glbl2.
- Wadsworths_cipher sameAs Q7959329.
- Wadsworths_cipher wasDerivedFrom Wadsworths_cipher?oldid=522060222.
- Wadsworths_cipher isPrimaryTopicOf Wadsworths_cipher.