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	<title>Retina Technology Blog &#187; cryptography</title>
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	<description>John Adams' views on emerging technologies, software engineering, and various hacks</description>
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		<title>American National Corpus</title>
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		<pubDate>Fri, 11 Apr 2008 21:37:50 +0000</pubDate>
		<dc:creator>John Adams</dc:creator>
				<category><![CDATA[application security]]></category>
		<category><![CDATA[cryptography]]></category>
		<category><![CDATA[crypto]]></category>
		<category><![CDATA[dictionary attacks]]></category>
		<category><![CDATA[words]]></category>

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		<description><![CDATA[Many Unix users are familiar with the system-wide english dictionary, known as /usr/dict/words. Nearly every word in /usr/dict/words has been registered by domain squatters, and most variants of the words are already in the brains of every automated password cracker on the planet. This wordlist is a source when performing research on frequency tables and [...]]]></description>
			<content:encoded><![CDATA[<p>Many Unix users are familiar with the system-wide english dictionary, known as /usr/dict/words. Nearly every word in /usr/dict/words has been registered by domain squatters, and most variants of the words are already in the brains of every automated password cracker on the planet. </p>
<p>This wordlist is a source when performing research on frequency tables and cryptanalysis for use in security, and for wonder</p>
<p>I&#8217;m unclear as to the origins of the dictionary (it possibly came from the spell or ispell utilities years ago), but I do know that it&#8217;s riddled with inaccuracies <a href="http://bugs.opensolaris.org/view_bug.do;jsessionid=9e7ec0f28038d47bc703ac62d3c3?bug_id=4628215">and basically, it would fail a spelling bee</a>. </p>
<p>Today I found two projects to create a better English wordlist, and I can only imagine what will happen when domain squatters find it. The plan is to have a list with a hundred million words, spoken, and written. </p>
<p>There&#8217;s the <a href="http://www.americannationalcorpus.org/SecondRelease/frequency2.html">American National Corpus</a>, and the <a href="http://www.natcorp.ox.ac.uk/">British National Corpus</a>. Both contain enough words to keep password cracking software and domain squatters busy for years. </p>
<p>At last count, the ANC held 18 million words. I guess they have a long way to go.</p>
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