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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Class: openpgp_packet_modificationdetectioncode</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Class: openpgp_packet_modificationdetectioncode</h1>
<section>
<header>
<h2>
openpgp_packet_modificationdetectioncode
</h2>
<div class="class-description">Implementation of the Modification Detection Code Packet (Tag 19)
RFC4880 5.14: The Modification Detection Code packet contains a SHA-1 hash of
plaintext data, which is used to detect message modification. It is only used
with a Symmetrically Encrypted Integrity Protected Data packet. The
Modification Detection Code packet MUST be the last packet in the plaintext
data that is encrypted in the Symmetrically Encrypted Integrity Protected
Data packet, and MUST appear in no other place.</div>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="openpgp_packet_modificationdetectioncode"><span class="type-signature"></span>new openpgp_packet_modificationdetectioncode<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.modificationdetectioncode.js.html">packet/openpgp.packet.modificationdetectioncode.js</a>, line 30
</li></ul></dd>
</dl>
</dd>
</div>
<h3 class="subsection-title">Methods</h3>
<dl>
<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_encrypteddata.html">openpgp_packet_encrypteddata</a>}</span></h4>
</dt>
<dd>
<div class="description">
parsing function for a modification detection code packet (tag 19).
</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 19 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.modificationdetectioncode.js.html">packet/openpgp.packet.modificationdetectioncode.js</a>, line 44
</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"><inner> </span>toString<span class="signature">()</span><span class="type-signature"> → {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.modificationdetectioncode.js.html">packet/openpgp.packet.modificationdetectioncode.js</a>, line 73
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
String which gives some information about the
modification detection code
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">String</span>
</dd>
</dl>
</dd>
</dl>
</article>
</section>
</div>
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