fork-openpgpjs/doc/openpgp_packet_encryptedintegrityprotecteddata.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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<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">&lt;inner> </span>decrypt<span class="signature">(symmetric_algorithm_type, key)</span><span class="type-signature"> &rarr; {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">&lt;inner> </span>read_packet<span class="signature">(input, position, len)</span><span class="type-signature"> &rarr; {<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">&lt;inner> </span>write_packet<span class="signature">(symmetric_algorithm, key, data)</span><span class="type-signature"> &rarr; {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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