<!DOCTYPE html><html lang="en"><head> <meta charset="utf-8"> <title>JSDoc: Class: CompressedDataPacket</title>
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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 followinga 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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L55">line 55</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"> :enums.compression</span></h4>
<div class="description"> <p>Compression algorithm</p></div>
<h5>Type:</h5> <ul> <li> <span class="param-type">enums.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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L65">line 65</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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L71">line 71</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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L76">line 76</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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L60">line 60</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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L129">line 129</a> </li></ul></dd>
</dl>
<h4 class="name" id="decompress"><span class="type-signature">(async) </span>decompress<span class="signature">(config<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<div class="description"> <p>Decompression method for decompressing the compressed dataread by read_packet</p></div>
<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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L116">line 116</a> </li></ul></dd>
</dl>
<h4 class="name" id="read"><span class="type-signature">(async) </span>read<span class="signature">(bytes, config<span class="signature-attributes">opt</span>)</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>Attributes</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="attributes">
</td>
<td class="description last"><p>Payload of a tag 8 packet</p></td> </tr>
<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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L84">line 84</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/v5.4.0/src/packet/compressed_data.js">packet/compressed_data.js</a>, <a href="https://github.com/openpgpjs/openpgpjs/blob/v5.4.0/src/packet/compressed_data.js#L102">line 102</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>
</section>
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