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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Namespace: Cipher</title>
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<div id="main">
<h1 class="page-title">Namespace: Cipher</h1>
<section>
<header>
<h2>Cipher</h2>
</header>
<article>
<div class="container-overview">
<div class="description">Object for encrypting data.
Returned by D.crypto.createCipher.
Cipher objects are streams that are both readable and writable. The written plain text data is used to produce the encrypted data on the readable side. The legacy update and final methods are also supported.</div>
<dl class="details">
</dl>
</div>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".final"><span class="type-signature">(static) </span>final<span class="signature">(outputEcoding<span class="signature-attributes">opt</span>)</span><span class="type-signature"> → {string|Buffer}</span></h4>
<div class="description">
Returns any remaining enciphered contents, with outputEncoding being one of: 'binary', 'base64' or 'hex'.
If no encoding is provided, then a buffer is returned.
The Cipher object cannot be used after final() method has been called.
</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>outputEcoding</code></td>
<td class="type">
<span class="param-type">binary</span>
|
<span class="param-type">base64</span>
|
<span class="param-type">hex</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">The outputEncoding specifies the output format of the enciphered data, and can be 'binary', 'base64' or 'hex'. If no encoding is provided, then a buffer is returned.</td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
<h5>Returns:</h5>
<div class="param-desc">
- Any remaining enciphered contents
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">string</span>
|
<span class="param-type">Buffer</span>
</dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>D.crypto.createCipher('sha1', 'key', 'iv').final('binary')</code></pre>
<h4 class="name" id=".setAutoPadding"><span class="type-signature">(static) </span>setAutoPadding<span class="signature">(autoPadding<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<div class="description">
You can disable automatic padding of the input data to block size.
If autoPadding is false, the length of the entire input data must be a multiple of the cipher's block size or final will fail.
Useful for non-standard padding, e.g. using 0x0 instead of PKCS padding.
You must call this before cipher.final.
</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>autoPadding</code></td>
<td class="type">
<span class="param-type">bool</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">The auto padding boolean flag.</td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>D.crypto.createCipher('sha1', 'key', 'initialization vector').setAutoPadding(false)</code></pre>
<h4 class="name" id=".update"><span class="type-signature">(static) </span>update<span class="signature">(data, inputEncoding<span class="signature-attributes">opt</span>, outputEcoding<span class="signature-attributes">opt</span>)</span><span class="type-signature"> → {string|Buffer}</span></h4>
<div class="description">
Updates the cipher with data, the encoding of which is given in inputEcoding and can be 'utf8', 'ascii' or 'binary'.
If data is a Buffer then inputEncoding is ignored.
</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>data</code></td>
<td class="type">
<span class="param-type">string</span>
|
<span class="param-type">Buffer</span>
</td>
<td class="attributes">
</td>
<td class="description last">The data object. If data is a Buffer then inputEncoding is ignored.</td>
</tr>
<tr>
<td class="name"><code>inputEncoding</code></td>
<td class="type">
<span class="param-type">binary</span>
|
<span class="param-type">ascii</span>
|
<span class="param-type">utf8</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">The input encoding. If data is a Buffer then inputEncoding is ignored.</td>
</tr>
<tr>
<td class="name"><code>outputEcoding</code></td>
<td class="type">
<span class="param-type">binary</span>
|
<span class="param-type">base64</span>
|
<span class="param-type">hex</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">The output encoding specifies the output format of the enciphered data, and can be 'binary', 'base64' or 'hex'. If no encoding is provided, then a buffer is returned.</td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
<h5>Returns:</h5>
<div class="param-desc">
- Returns the enciphered contents, and can be called many times with new data as it is streamed.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">string</span>
|
<span class="param-type">Buffer</span>
</dd>
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>D.crypto.createCipher('sha1', 'key', 'iv').update('data', 'binary', 'binary')</code></pre>
</article>
</section>
</div>
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<h2><a href="index.html">Home</a></h2><h3>Externals</h3><ul><li><a href="D.external__.html">_</a></li></ul><h3>Namespaces</h3><ul><li><a href="Cipher.html">Cipher</a></li><li><a href="console.html">console</a></li><li><a href="D.html">D</a></li><li><a href="D.crypto.html">crypto</a></li><li><a href="D.device.html">device</a></li><li><a href="D.device.http.html">http</a></li><li><a href="D.math.html">math</a></li><li><a href="Decipher.html">Decipher</a></li><li><a href="driverTable.html">driverTable</a></li><li><a href="snmpSession.html">snmpSession</a></li></ul><h3>Global</h3><ul><li><a href="global.html#pbkdf2Sync">pbkdf2Sync</a></li></ul>
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