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<div class="subsection" id="Base64-and-Binary-Data-Transmission">
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Previous: <a href="WWW-Access.html" accesskey="p" rel="prev">WWW Access</a>, Up: <a href="Networking-Utilities.html" accesskey="u" rel="up">Networking Utilities</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Base64-and-Binary-Data-Transmission-1"></span><h4 class="subsection">36.4.3 Base64 and Binary Data Transmission</h4>

<p>Some transmission channels can not accept binary data.  It is customary to
encode binary data in Base64 for transmission and to decode the data upon
reception.
</p>
<span id="XREFbase64_005fencode"></span><dl class="def">
<dt id="index-base64_005fencode"><span class="category">: </span><span><em><var>s</var> =</em> <strong>base64_encode</strong> <em>(<var>x</var>)</em><a href='#index-base64_005fencode' class='copiable-anchor'> &para;</a></span></dt>
<dd><p>Encode a double matrix or array <var>x</var> into the base64 format string
<var>s</var>.
</p>

<p><strong>See also:</strong> <a href="#XREFbase64_005fdecode">base64_decode</a>, <a href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>.
</p></dd></dl>


<span id="XREFbase64_005fdecode"></span><dl class="def">
<dt id="index-base64_005fdecode"><span class="category">: </span><span><em><var>x</var> =</em> <strong>base64_decode</strong> <em>(<var>s</var>)</em><a href='#index-base64_005fdecode' class='copiable-anchor'> &para;</a></span></dt>
<dt id="index-base64_005fdecode-1"><span class="category">: </span><span><em><var>x</var> =</em> <strong>base64_decode</strong> <em>(<var>s</var>, <var>dims</var>)</em><a href='#index-base64_005fdecode-1' class='copiable-anchor'> &para;</a></span></dt>
<dd><p>Decode the double matrix or array <var>x</var> from the base64 encoded string
<var>s</var>.
</p>
<p>The optional input parameter <var>dims</var> should be a vector containing the
dimensions of the decoded array.
</p>
<p><strong>See also:</strong> <a href="#XREFbase64_005fencode">base64_encode</a>, <a href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>.
</p></dd></dl>


<span id="XREFmatlab_005fnet_005fbase64encode"></span><dl class="def">
<dt id="index-matlab_002enet_002ebase64encode"><span class="category">: </span><span><em><var>b64_str</var> =</em> <strong>matlab.net.base64encode</strong> <em>(<var>in</var>)</em><a href='#index-matlab_002enet_002ebase64encode' class='copiable-anchor'> &para;</a></span></dt>
<dd>
<p>Convert <var>in</var> to a base64 encoded string <var>b64_str</var>.
</p>
<p>The input <var>in</var> can be a string or numeric vector.
The output <var>b64_str</var> will be encoded according to RFC 4648.
</p>

<p><strong>See also:</strong> <a href="#XREFmatlab_005fnet_005fbase64decode">matlab.net.base64decode</a>, <a href="#XREFbase64_005fdecode">base64_decode</a>, <a href="#XREFbase64_005fencode">base64_encode</a>, <a href="String-encoding.html#XREFunicode2native">unicode2native</a>.
</p></dd></dl>


<span id="XREFmatlab_005fnet_005fbase64decode"></span><dl class="def">
<dt id="index-matlab_002enet_002ebase64decode"><span class="category">: </span><span><em><var>out_vec</var> =</em> <strong>matlab.net.base64decode</strong> <em>(<var>b64_str</var>)</em><a href='#index-matlab_002enet_002ebase64decode' class='copiable-anchor'> &para;</a></span></dt>
<dd>
<p>Convert base64 encoded <var>b64_str</var> to uint8 vector <var>out_vec</var>.
</p>
<p>The input <var>b64_str</var> must be a string vector.
The output <var>out_vec</var> will be a uint8 vector that is decoded
according to RFC 4648.
</p>

<p><strong>See also:</strong> <a href="#XREFmatlab_005fnet_005fbase64encode">matlab.net.base64encode</a>, <a href="#XREFbase64_005fdecode">base64_decode</a>, <a href="#XREFbase64_005fencode">base64_encode</a>, <a href="String-encoding.html#XREFnative2unicode">native2unicode</a>.
</p></dd></dl>


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