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<title>JSDoc: Class: openpgp_packet_encryptedintegrityprotecteddata</title>
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<h1 class="page-title">Class: openpgp_packet_encryptedintegrityprotecteddata</h1>
<section>
<header>
<h2>
openpgp_packet_encryptedintegrityprotecteddata
</h2>
<div class="class-description">Implementation of the Sym. Encrypted Integrity Protected Data
Packet (Tag 18)
RFC4880 5.13: The Symmetrically Encrypted Integrity Protected Data packet is
a variant of the Symmetrically Encrypted Data packet. It is a new feature
created for OpenPGP that addresses the problem of detecting a modification to
encrypted data. It is used in combination with a Modification Detection Code
packet.</div>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="openpgp_packet_encryptedintegrityprotecteddata"><span class="type-signature"></span>new openpgp_packet_encryptedintegrityprotecteddata<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.encryptedintegrityprotecteddata.js.html">packet/openpgp.packet.encryptedintegrityprotecteddata.js</a>, line 30
</li></ul></dd>
</dl>
</dd>
</div>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name" id="decrypt"><span class="type-signature"><inner> </span>decrypt<span class="signature">(symmetric_algorithm_type, key)</span><span class="type-signature"> → {String}</span></h4>
</dt>
<dd>
<div class="description">
Decrypts the encrypted data contained in this object read_packet must
have been called before
</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>symmetric_algorithm_type</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">The selected symmetric encryption algorithm to be used</td>
</tr>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key of cipher blocksize length to be used</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.encryptedintegrityprotecteddata.js.html">packet/openpgp.packet.encryptedintegrityprotecteddata.js</a>, line 116
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
The decrypted data of this packet
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">String</span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="read_packet"><span class="type-signature"><inner> </span>read_packet<span class="signature">(input, position, len)</span><span class="type-signature"> → {<a href="openpgp_packet_encryptedintegrityprotecteddata.html">openpgp_packet_encryptedintegrityprotecteddata</a>}</span></h4>
</dt>
<dd>
<div class="description">
Parsing function for the 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>input</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">Payload of a tag 18 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.encryptedintegrityprotecteddata.js.html">packet/openpgp.packet.encryptedintegrityprotecteddata.js</a>, line 48
</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_encryptedintegrityprotecteddata.html">openpgp_packet_encryptedintegrityprotecteddata</a></span>
</dd>
</dl>
</dd>
<dt>
<h4 class="name" id="write_packet"><span class="type-signature"><inner> </span>write_packet<span class="signature">(symmetric_algorithm, key, data)</span><span class="type-signature"> → {String}</span></h4>
</dt>
<dd>
<div class="description">
Creates a string representation of a Sym. Encrypted Integrity Protected
Data Packet (tag 18) (see RFC4880 5.13)
</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>symmetric_algorithm</code></td>
<td class="type">
<span class="param-type">Integer</span>
</td>
<td class="description last">The selected symmetric encryption algorithm to be used</td>
</tr>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key of cipher blocksize length to be used</td>
</tr>
<tr>
<td class="name"><code>data</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">Plaintext data to be encrypted within the packet</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.encryptedintegrityprotecteddata.js.html">packet/openpgp.packet.encryptedintegrityprotecteddata.js</a>, line 83
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
A string representation of the packet
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">String</span>
</dd>
</dl>
</dd>
</dl>
</article>
</section>
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