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    <h1 class="page-title">Module: type/mpi</h1>
    
    



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    <h2>
    type/mpi
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    <div class="container-overview">
    
        
            <div class="description">Implementation of type MPI (RFC4880 3.2)<br/>
<br/>
Multiprecision integers (also called MPIs) are unsigned integers used
to hold large integers such as the ones used in cryptographic
calculations.
An MPI consists of two pieces: a two-octet scalar that is the length
of the MPI in bits followed by a string of octets that contain the
actual integer.</div>
        
        
<dt>
    <h4 class="name" id="module:type/mpi"><span class="type-signature"></span>new (require("type/mpi"))<span class="signature">()</span><span class="type-signature"></span></h4>
    
    
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    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="mpi.js.html">type/mpi.js</a>, <a href="mpi.js.html#line43">line 43</a>
    </li></ul></dd>
    
    
    
    
    
    
    
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    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="mpi.js.html">type/mpi.js</a>, <a href="mpi.js.html#line23">line 23</a>
    </li></ul></dd>
    
    
    
    
    
    
    
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        <h3 class="subsection-title">Requires</h3>
        
        <ul>
            <li><a href="jsbn.html">module:crypto/public_key/jsbn</a></li>
        
            <li><a href="module-util.html">module:util</a></li>
        </ul>
    
    
    
    
    
    
    
        <h3 class="subsection-title">Members</h3>
        
        <dl>
            
<dt>
    <h4 class="name" id="data"><span class="type-signature"></span>data<span class="type-signature"></span></h4>
    
    
</dt>
<dd>
    
    <div class="description">
        An implementation dependent integer
    </div>
    
    
    

    
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    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="mpi.js.html">type/mpi.js</a>, <a href="mpi.js.html#line45">line 45</a>
    </li></ul></dd>
    
    
    
    
    
    
    
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        <h3 class="subsection-title">Methods</h3>
        
        <dl>
            
<dt>
    <h4 class="name" id="read"><span class="type-signature"></span>read<span class="signature">(input)</span><span class="type-signature"> &rarr; {Integer}</span></h4>
    
    
</dt>
<dd>
    
    
    <div class="description">
        Parsing function for a mpi (RFC 4880 3.2).
    </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 mpi data</td>
        </tr>
	
	
	</tbody>
</table>
    
    
    
<dl class="details">
    
        
    
    
    

    
    
    
    
    
    
    
    
    
    
    
    
    
    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="mpi.js.html">type/mpi.js</a>, <a href="mpi.js.html#line52">line 52</a>
    </li></ul></dd>
    
    
    
    
    
    
    
</dl>

    
    

    

    
    
    
    
    
    <h5>Returns:</h5>
    
            
<div class="param-desc">
    Length of data read
</div>



<dl>
	<dt>
		Type
	</dt>
	<dd>
		
<span class="param-type">Integer</span>


	</dd>
</dl>

        
    
    
</dd>

        
            
<dt>
    <h4 class="name" id="write"><span class="type-signature"></span>write<span class="signature">()</span><span class="type-signature"> &rarr; {String}</span></h4>
    
    
</dt>
<dd>
    
    
    <div class="description">
        Converts the mpi object to a string as specified in RFC4880 3.2
    </div>
    

    
    
    
    
    
    
    
<dl class="details">
    
        
    
    
    

    
    
    
    
    
    
    
    
    
    
    
    
    
    <dt class="tag-source">Source:</dt>
    <dd class="tag-source"><ul class="dummy"><li>
        <a href="mpi.js.html">type/mpi.js</a>, <a href="mpi.js.html#line89">line 89</a>
    </li></ul></dd>
    
    
    
    
    
    
    
</dl>

    
    

    

    
    
    
    
    
    <h5>Returns:</h5>
    
            
<div class="param-desc">
    mpi Byte representation
</div>



<dl>
	<dt>
		Type
	</dt>
	<dd>
		
<span class="param-type">String</span>


	</dd>
</dl>

        
    
    
</dd>

        </dl>
    
    
    
    
    
</article>

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