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	<title>OhRyan.ca &#187; passwords</title>
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	<link>http://ohryan.ca/blog</link>
	<description>Canadian Tech News, Hacks &#38; How To</description>
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		<title>Rethinking Passwords</title>
		<link>http://ohryan.ca/blog/2011/09/07/rethinking-passwords/</link>
		<comments>http://ohryan.ca/blog/2011/09/07/rethinking-passwords/#comments</comments>
		<pubDate>Wed, 07 Sep 2011 14:32:55 +0000</pubDate>
		<dc:creator>RyanN</dc:creator>
				<category><![CDATA[Random]]></category>
		<category><![CDATA[passwords]]></category>
		<category><![CDATA[think shift]]></category>

		<guid isPermaLink="false">http://ohryan.ca/blog/?p=1590</guid>
		<description><![CDATA[Made my first post over at the company blog. Thought it would only be appropriate to give it some link love over here. My thoughts on the future of password: Rethinking Passwords.]]></description>
			<content:encoded><![CDATA[<p>Made my first post over at <a href="http://thinkshiftinc.com" target="_blank">the company</a> <a href="http://soapbox.thinkshiftinc.com" target="_blank">blog</a>. Thought it would only be appropriate to give it some link love over here. My thoughts on the future of password: <a href="http://soapbox.thinkshiftinc.com/index.php/2011/09/rethinking-passwords/">Rethinking Passwords</a>.</p>
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		<slash:comments>2</slash:comments>
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		<title>Assault on the Hash (or how to make secure your passwords)</title>
		<link>http://ohryan.ca/blog/2011/07/04/assault-on-the-hash-or-how-to-make-secure-your-passwords/</link>
		<comments>http://ohryan.ca/blog/2011/07/04/assault-on-the-hash-or-how-to-make-secure-your-passwords/#comments</comments>
		<pubDate>Mon, 04 Jul 2011 05:47:19 +0000</pubDate>
		<dc:creator>RyanN</dc:creator>
				<category><![CDATA[HowTo]]></category>
		<category><![CDATA[passwords]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[security]]></category>

		<guid isPermaLink="false">http://ohryan.ca/blog/?p=1527</guid>
		<description><![CDATA[In a recent episode of Build &#38; Analyze Marco Armet (creator of Instapaper) explained that the standard practice of salting a hash is no longer a really good way to secure passwords. CPUs (and GPUs) are so fast that they can effectively guess your salt in a reasonable amount of time*. The solution, use bcrypt. [...]]]></description>
			<content:encoded><![CDATA[<p>In <a href="http://5by5.tv/buildanalyze/31" target="_blank">a recent episode of Build &amp; Analyze</a> <a href="http://www.marco.org/about" target="_blank">Marco Armet</a> (creator of <a href="http://www.instapaper.com/" target="_blank">Instapaper</a>) explained that the standard practice of <a href="http://en.wikipedia.org/wiki/Salt_(cryptography)">salting a hash</a> is no longer a really good way to secure passwords. CPUs (and GPUs) are so fast that they can effectively guess your salt in a reasonable amount of time*.</p>
<p>The solution, <a href="http://codahale.com/how-to-safely-store-a-password/">use bcrypt</a>. Essentially, it&#8217;s an extremely slow hashing algorithm.</p>
<p>To me this seems a little bit like security through obscurity, every once in awhile &#8211; as CPU speed increases - you&#8217;ll have to update your algorithm to generate hashes even slower.</p>
<p>See also.</p>
<ul>
<li><a href="http://www.marco.org/2011/06/29/simple-php-bcrypt-class-phpass">Marco&#8217;s Blog Post</a>.</li>
<li><a href="https://gist.github.com/1053158">His PHP implementation of bcrypt</a>.</li>
</ul>
<p><small>*<a href="http://www.cryptopp.com/benchmarks-amd64.html">A modern server can calculate over 300MB of hash data per second!</a></small></p>
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		<title>Non-Alpha-Numeric Passwords</title>
		<link>http://ohryan.ca/blog/2007/07/21/non-alpha-numeric-passwords/</link>
		<comments>http://ohryan.ca/blog/2007/07/21/non-alpha-numeric-passwords/#comments</comments>
		<pubDate>Sat, 21 Jul 2007 17:36:29 +0000</pubDate>
		<dc:creator>RyanN</dc:creator>
				<category><![CDATA[Random]]></category>
		<category><![CDATA[banking]]></category>
		<category><![CDATA[passwords]]></category>
		<category><![CDATA[security]]></category>

		<guid isPermaLink="false">http://ohryan.ca/blog/blog/2007/07/21/non-alpha-numeric-passwords/</guid>
		<description><![CDATA[Why won&#8217;t my bank allow me to use non-alpha-numeric characters in my online banking password?! Don&#8217;t they want my password to be as secure as possible?]]></description>
			<content:encoded><![CDATA[<p>Why won&#8217;t my bank allow me to use non-alpha-numeric characters in my online banking password?!<br />
Don&#8217;t they want my password to be as secure as possible?</p>
]]></content:encoded>
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