fork-openpgpjs/doc/openpgp_packet_onepasssignature.html
Michal Kolodziej 23295342fc Added utf8 awareness to the literal and userid packet classes. Made s2k
work correctly with utf8 strings. Fixeda visibility issue with the
testing suite and added relevant unit tests.
2013-04-16 10:47:17 +02:00

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<title>JSDoc: Class: openpgp_packet_onepasssignature</title>
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<h1 class="page-title">Class: openpgp_packet_onepasssignature</h1>
<section>
<header>
<h2>
openpgp_packet_onepasssignature
</h2>
<div class="class-description">Implementation of the One-Pass Signature Packets (Tag 4)
RFC4880 5.4:
The One-Pass Signature packet precedes the signed data and contains
enough information to allow the receiver to begin calculating any
hashes needed to verify the signature. It allows the Signature
packet to be placed at the end of the message, so that the signer
can compute the entire signed message in one pass.</div>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="openpgp_packet_onepasssignature"><span class="type-signature"></span>new openpgp_packet_onepasssignature<span class="signature">()</span><span class="type-signature"></span></h4>
</dt>
<dd>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="openpgp.packet.onepasssignature.js.html">packet/openpgp.packet.onepasssignature.js</a>, line 29
</li></ul></dd>
</dl>
</dd>
</div>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name" id="read_packet"><span class="type-signature">&lt;inner> </span>read_packet<span class="signature">(input, position, len)</span><span class="type-signature"> &rarr; {<a href="openpgp_packet_encrypteddata.html">openpgp_packet_encrypteddata</a>}</span></h4>
</dt>
<dd>
<div class="description">
parsing function for a one-pass signature packet (tag 4).
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>input</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">payload of a tag 4 packet</td>
</tr>
<tr>
<td class="name"><code>position</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">position to start reading from the input string</td>
</tr>
<tr>
<td class="name"><code>len</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">length of the packet or the remaining length of input at position</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="openpgp.packet.onepasssignature.js.html">packet/openpgp.packet.onepasssignature.js</a>, line 45
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
object representation
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type"><a href="openpgp_packet_encrypteddata.html">openpgp_packet_encrypteddata</a></span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="toString"><span class="type-signature">&lt;inner> </span>toString<span class="signature">()</span><span class="type-signature"> &rarr; {String}</span></h4>
</dt>
<dd>
<div class="description">
generates debug output (pretty print)
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="openpgp.packet.onepasssignature.js.html">packet/openpgp.packet.onepasssignature.js</a>, line 105
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
String which gives some information about the one-pass signature packet
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">String</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="write_packet"><span class="type-signature">&lt;inner> </span>write_packet<span class="signature">(type, hashalgorithm, privatekey, length, nested)</span><span class="type-signature"> &rarr; {String}</span></h4>
</dt>
<dd>
<div class="description">
creates a string representation of a one-pass signature packet
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>type</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">Signature types as described in RFC4880 Section 5.2.1.</td>
</tr>
<tr>
<td class="name"><code>hashalgorithm</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">the hash algorithm used within the signature</td>
</tr>
<tr>
<td class="name"><code>privatekey</code></td>
<td class="type">
<span class="param-type"><a href="openpgp_msg_privatekey.html">openpgp_msg_privatekey</a></span>
</td>
<td class="description last">the private key used to generate the signature</td>
</tr>
<tr>
<td class="name"><code>length</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">length of data to be signed</td>
</tr>
<tr>
<td class="name"><code>nested</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last">boolean showing whether the signature is nested.
"true" indicates that the next packet is another One-Pass Signature packet
that describes another signature to be applied to the same message data.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="openpgp.packet.onepasssignature.js.html">packet/openpgp.packet.onepasssignature.js</a>, line 84
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
a string representation of a one-pass signature packet
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">String</span>
</dd>
</dl>
</dd>
</dl>
</article>
</section>
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