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 <title>Typophile - Digital Signature - Comments</title>
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 <description>Comments for &quot;Digital Signature&quot;</description>
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 <title>Digital Signature</title>
 <link>http://typophile.com/node/18413</link>
 <description>&lt;p&gt;&lt;strong&gt;&lt;a href=&quot;/wiki/Indices&quot; class=&quot;wiki&quot;&gt;Indices&lt;/a&gt; : &lt;a href=&quot;/wiki/Technical%252BInfo&quot; class=&quot;wiki&quot;&gt;Technical Info&lt;/a&gt; : Digital Signature&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;A digital signature is a way to authenticate the authorship of a file. Only &lt;a href=&quot;/wiki/OpenType&quot; class=&quot;wiki&quot;&gt;OpenType&lt;/a&gt; and &lt;a href=&quot;/wiki/TrueType&quot; class=&quot;wiki&quot;&gt;TrueType&lt;/a&gt; fonts are capable of being signed with a digital signature as the signature is stored in an &lt;a href=&quot;/wiki/OpenType%252BTable&quot; class=&quot;wiki-create&quot;&gt;OpenType Table&lt;/a&gt; named &lt;a href=&quot;http://www.microsoft.com/typography/otspec/dsig.htm&quot;&gt;DSIG&lt;/a&gt;. In the case of TrueType &lt;a href=&quot;/wiki/flavor&quot; class=&quot;wiki&quot;&gt;flavored&lt;/a&gt; OT fonts, the digital signature is the singular key which determines whether or not the font is marked as an OpenType font with the &lt;em&gt;O&lt;/em&gt; icon. This means that TT flavored OT fonts that are not signed will not display the &lt;em&gt;O&lt;/em&gt; icon and TT fonts that are signed but have no other OT features will display the &lt;em&gt;O&lt;/em&gt; icon.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Additional Articles&lt;/strong&gt;&lt;br /&gt;
&lt;a href=&quot;http://www.microsoft.com/typography/developers/dsig/&quot;&gt;&lt;em&gt;Digital Signatures for Font Files&lt;/em&gt;&lt;/a&gt;.&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Discussion:&lt;/strong&gt;&lt;br /&gt;
&lt;a href=&quot;http://typophile.com/node/29770&quot;&gt;How to get an OpenType icon on a OpenType TTF Flavored font file?&lt;/a&gt;&lt;/p&gt;
</description>
 <category domain="http://typophile.com/taxonomy/term/53">wiki</category>
 <pubDate>Thu,  9 Mar 2006 06:33:15 -0800</pubDate>
 <dc:creator>Miguel Sousa</dc:creator>
 <guid isPermaLink="false">18413 at http://typophile.com</guid>
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