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	<title>parrhesia.comCryptography | parrhesia.com</title>
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	<description>politics, technology, law -- privacy, surveillance, cryptography</description>
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		<title>Turing&#8217;s Treatise on the Enigma</title>
		<link>https://parrhesia.com/2006/01/24/turings-treatise-on-the-enigma/</link>
		<comments>https://parrhesia.com/2006/01/24/turings-treatise-on-the-enigma/#comments</comments>
		<pubDate>Wed, 25 Jan 2006 05:32:13 +0000</pubDate>
		<dc:creator>Greg Broiles</dc:creator>
				<category><![CDATA[Cryptography]]></category>

		<guid isPermaLink="false">http://www.parrhesia.com/?p=20</guid>
		<description><![CDATA[Almost 10 years ago, I requested a copy of Turing&#8217;s Treatise on the Enigma from the National Archives &#038; Records Administration via the Freedom of Information Act; when I received it, I only had a flatbed scanner, and sheet-fed scanners were either prohibitively expensive or aggravatingly unreliable, so these 119-odd pages of cryptographic history languished...]]></description>
			<content:encoded><![CDATA[<p>Almost 10 years ago, I requested a copy of Turing&#8217;s Treatise on the Enigma from the <a href="http://www.archives.gov/index.html">National Archives &#038; Records Administration</a> via the Freedom of Information Act; when I received it, I only had a flatbed scanner, and sheet-fed scanners were either prohibitively expensive or aggravatingly unreliable, so these 119-odd pages of cryptographic history languished unpublished on the Web, at least in their original form. (A painstakingly retyped version is available at <a href="http://f.home.cern.ch/f/frode/www/crypto/Turing/">http ://f.home.cern.ch/f/frode/www/crypto/Turing/</a>.) </p>
<p>Happily, technology and bandwidth have become cheaper in the intervening years, and I now lease office space that includes a modern copier that can scan to PDF as easily as making a photocopy.</p>
<p>Thus, I can now make the original images (as received from NARA) available online at <a href="http://parrhesia.com.nyud.net:8090/turing.pdf">http ://parrhesia.com/turing.pdf</a>.  (The link has been <a href="http://www.coralcdn.org">CORAL</a>ized for faster response.) </p>
<p>It&#8217;s tough to read because this is a scan of a photocopy of a photograph (microfilm?) of the original &#8211; but if you&#8217;ve ever wondered what Alan Turing&#8217;s handwriting looked like, or want to remember what it was like to produce a document before White-Out existed, here you go.</p>
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