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90 lines
3.7 KiB
90 lines
3.7 KiB
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>Digital Signature Initiative Overview</title>
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</head>
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<body text="#000000" bgcolor="#FFFFFF">
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<h2><a href="http://www.w3.org/"><img
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src="http://www.w3.org/Icons/WWW/w3c_home" alt="W3C" border="0" height="48"
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width="72">
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</a><a href="http://www.w3.org/"> </a><a href="../TandS/"><img
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src="http://www.w3.org/Icons/tands.gif" alt="Technology and Society Domain"
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border="0" height="48" width="212">
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</a><img src="http://www.w3.org/DSig/DSigLogo.gif"
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border="0" alt="Digital Signature Initiative" height="48" width="212"></h2>
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<center>
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<font size="-1">[<a href="Activity.html">Activity Statement</a>] [<a
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href="Group/">Member Only Links</a>] [<a
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href="DSigResources.html">Background</a>]</font></center>
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<h2>Digital Signature Initiative</h2>
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<p>This is W3C's homepage for signed PICS labels (DSig1.0). This Activity has
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been completed upon the delivery of the following specifications and software
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code. Present W3C activities are linked from the <a
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href="http://www.w3.org/">W3C Homepage</a> (including <a
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href="http://www.w3.org/Signature">XML-Signatures</a>).</p>
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<h2>DSig 1.0</h2>
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<p>[<a href="http://www.w3.org/TR/REC-DSig-label/">Recommendation</a>]</p>
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<p>The DSig 1.0 recommendation describes a method of utilizing PICS 1.1 labels
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with extensions to meet this goal. It also provides detailed usage guidelines
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for creating PICS 1.1 labels, which are valid DSig 1.0 Signature labels.</p>
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<p>DSig 1.0 signature labels inherit both a means of transporting a signature
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block data and a simple framework for making the machine-readable assertions
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from the underlying PICS framework. PICS compliant applications can
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syntactically parse DSig 1.0 signature labels; only cryptographic functions
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need to be added to PICS-aware applications in order to make use of the
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semantic content of a DSig signature.</p>
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<p>Future work, will extend DSig to other metadata formats such as XML and/or
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RDF. This will extend the richness of the DSig assertion model.</p>
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<h2>Related Resources</h2>
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<ul>
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<li>W3C Sample Code Library for DSig and PICS - <a
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href="http://www.w3.org/PICS/refcode/">PICS/DSig Standard Library</a></li>
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<li><a href="http://www.w3.org/DSig/DSigResources.html">DSig Background
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Resources</a></li>
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<li><a href="http://www.w3.org/Security/">W3C Security Homepage</a></li>
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<li>Live DSig sample implementation by Riccardo Sabbatini
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<ul>
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<li>Sign - http://www.csr.unibo.it/ra/sr.htm (no longer available)</li>
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<li>Verify - ttp://www.csr.unibo.it/ra/v.htm (no longer available)</li>
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</ul>
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</li>
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</ul>
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<p></p>
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<hr>
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<br>
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<a href="mailto:reagle@w3.org">Joseph Reagle</a><br>
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19 June 1999
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<p><font size="-1"><a
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href="http://www.w3.org/Consortium/Legal/ipr-notice.html#Copyright">Copyright</a>
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© 1998 <a href="http://www.w3.org">W3C</a> (<a
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href="http://www.lcs.mit.edu">MIT</a>, <a
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href="http://www.inria.fr/">INRIA</a>, <a
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href="http://www.keio.ac.jp/">Keio</a> ), All Rights Reserved. W3C <a
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href="http://www.w3.org/Consortium/Legal/ipr-notice.html#Legal Disclaimer">liability,</a>
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<a
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href="http://www.w3.org/Consortium/Legal/ipr-notice.html#W3C Trademarks">trademark</a>,
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<a href="http://www.w3.org/Consortium/Legal/copyright-documents.html">document
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use </a>and <a
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href="http://www.w3.org/Consortium/Legal/copyright-software.html">software
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licensing </a>rules apply. Your interactions with this site are in accordance
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with our <a
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href="http://www.w3.org/Consortium/Legal/privacy-statement.html#Public">public</a>
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and <a
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href="http://www.w3.org/Consortium/Legal/privacy-statement.html#Members">Member</a>
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privacy statements.</font></p>
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</body>
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</html>
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