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<h1 class="page-title">Class: CompressedDataPacket</h1>
<section>
<header>
<h2><span class="attribs"><span class="type-signature"></span></span>CompressedDataPacket<span class="signature">(config<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h2>
<div class="class-description"><p>Implementation of the Compressed Data Packet (Tag 8)</p>
<p><a href="https://tools.ietf.org/html/rfc4880#section-5.6">RFC4880 5.6</a>:
The Compressed Data packet contains compressed data. Typically,
this packet is found as the contents of an encrypted packet, or following
a Signature or One-Pass Signature packet, and contains a literal data packet.</p></div>
</header>
<article>
<div class="container-overview">
<h2>Constructor</h2>
<h4 class="name" id="CompressedDataPacket"><span class="type-signature"></span>new CompressedDataPacket<span class="signature">(config<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>config</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>Full configuration, defaults to openpgp.config</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L54">line 54</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id="algorithm"><span class="type-signature"></span>algorithm<span class="type-signature"> :compression</span></h4>
<div class="description">
<p>Compression algorithm</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">compression</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L64">line 64</a>
</li></ul></dd>
</dl>
<h4 class="name" id="compressed"><span class="type-signature"></span>compressed<span class="type-signature"> :Uint8Array|ReadableStream.<Uint8Array></span></h4>
<div class="description">
<p>Compressed packet data</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Uint8Array</span>
|
<span class="param-type">ReadableStream.<Uint8Array></span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L70">line 70</a>
</li></ul></dd>
</dl>
<h4 class="name" id="deflateLevel"><span class="type-signature"></span>deflateLevel<span class="type-signature"></span></h4>
<div class="description">
<p>zip/zlib compression level, between 1 and 9</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L75">line 75</a>
</li></ul></dd>
</dl>
<h4 class="name" id="packets"><span class="type-signature"></span>packets<span class="type-signature"> :<a href="PacketList.html">PacketList</a></span></h4>
<div class="description">
<p>List of packets</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type"><a href="PacketList.html">PacketList</a></span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L59">line 59</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="compress"><span class="type-signature"></span>compress<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Compress the packet data (member decompressedData)</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L125">line 125</a>
</li></ul></dd>
</dl>
<h4 class="name" id="decompress"><span class="type-signature">(async) </span>decompress<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Decompression method for decompressing the compressed data
read by read_packet</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L113">line 113</a>
</li></ul></dd>
</dl>
<h4 class="name" id="read"><span class="type-signature">(async) </span>read<span class="signature">(bytes)</span><span class="type-signature"></span></h4>
<div class="description">
<p>Parsing function for the packet.</p>
</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>bytes</code></td>
<td class="type">
<span class="param-type">Uint8Array</span>
|
<span class="param-type">ReadableStream.<Uint8Array></span>
</td>
<td class="description last"><p>Payload of a tag 8 packet</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L82">line 82</a>
</li></ul></dd>
</dl>
<h4 class="name" id="write"><span class="type-signature"></span>write<span class="signature">()</span><span class="type-signature"> → {Uint8Array|ReadableStream.<Uint8Array>}</span></h4>
<div class="description">
<p>Return the compressed packet.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.0.0-2/src/packet/compressed_data.js#L100">line 100</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Binary compressed packet.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Uint8Array</span>
|
<span class="param-type">ReadableStream.<Uint8Array></span>
</dd>
</dl>
</article>
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