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<div class="section" id="remote-smart-card-reader">
<span id="remote-reader"></span><h1>Remote Smart Card Reader<a class="headerlink" href="#remote-smart-card-reader" title="Permalink to this headline">¶</a></h1>
<div class="sidebar">
<p class="first sidebar-title">Use an Android phone as contact-less smart card reader</p>
<table class="last docutils field-list" frame="void" rules="none">
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<col class="field-body" />
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<tr class="field-odd field"><th class="field-name">License:</th><td class="field-body">GPL version 3</td>
</tr>
<tr class="field-even field"><th class="field-name" colspan="2">Tested Platform:</th></tr>
<tr class="field-even field"><td> </td><td class="field-body">Android, CyanogenMod</td>
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<p>Allow a host computer to use the smartphone’s NFC hardware as contact-less
smartcard reader. On the host computer a special smart card driver, <abbr title="virtual smart card reader">vpcd</abbr>, must
be installed. The app establishes a connection to <abbr title="virtual smart card reader">vpcd</abbr> over the network when a
contact-less card is detected.</p>
<div class="figure">
<p><img src="../_images/tikz-ce55fa00e38973c00fdf255926bb46304226f2dc.svg" alt="\input{$wd/bilder/tikzstyles.tex}
\node (pcsc) [klein, aktivbox, inner xsep=.75cm, align=center] {PC/SC\\Framework};
\node (sca) [aktivbox, klein, left=.75cm of pcsc, align=center] {Smart Card\\Application};
\node (vpcd) [box, at=(pcsc.east), kleiner] {\texttt{vpcd}};
\node (phone) [right=2cm of vpcd] {\includegraphics[width=3cm]{$wd/bilder/smartphone.pdf}};
\node (app) [at=(phone.center)] {\includegraphics[width=2.8cm, height=4.9cm]{$wd/bilder/remote-reader.png}};
\node (card) [right=0cm of phone, rotate=45] {\includegraphics[width=2cm]{$wd/bilder/smartcard.pdf}};
\begin{pgfonlayer}{background}
\node (box) [box, fit=(pcsc) (sca) (vpcd), inner ysep=1.5em] {};
\node [at=(box.north west)] {\includegraphics[width=1cm]{$wd/bilder/computer-tango.pdf}};
\path[linie]
(sca) edge (pcsc)
(vpcd) edge node {\includegraphics[width=1.5cm]{$wd/bilder/simplecloud.pdf}} (app)
;
\draw [rfid] (phone.center) -- (card.center) ;
\end{pgfonlayer}" /></p>
<p class="caption">Remote Smart Card Reader used to access a contact-less card</p></div><p>The Remote Smart Card Reader has the following dependencies:</p>
<ul class="simple">
<li>NFC hardware built into the smartphone</li>
<li>Android 4.4 “KitKat” or CyanogenMod 11 (or newer)</li>
<li>permissions for a data connection (communication with <abbr title="virtual smart card reader">vpcd</abbr>) and for using
NFC (communication to the card); scanning the configuration via QR code
requires permission to access the camera</li>
<li><abbr title="virtual smart card reader">vpcd</abbr> <a class="reference internal" href="../virtualsmartcard/README.html#vicc-install"><em>installed on the host computer</em></a></li>
</ul>
<p>For remotely accessing a traditional smart card reader on one computer from an
other computer, the <a class="reference internal" href="../virtualsmartcard/README.html#vicc"><em>Virtual Smart Card</em></a> in relay mode can be used:</p>
<div class="figure">
<p><img src="../_images/tikz-f675fc9e85a93771428d0790db395907b3f662fe.svg" alt="\input{$wd/bilder/tikzstyles.tex}
\node (pcsc) [klein, aktivbox, inner xsep=.75cm, align=center] {PC/SC\\Framework};
\node (sca) [aktivbox, klein, left=.75cm of pcsc, align=center] {Smart Card\\Application};
\node (vpcd) [box, at=(pcsc.east), kleiner] {\texttt{vpcd}};
\node (pcsc2) [klein, aktivbox, inner xsep=.75cm, align=center, below=2.5cm of vpcd] {PC/SC\\Framework};
\node (vicc) [aktivbox, left=1cm of pcsc2, kleiner] {\texttt{vicc -t relay}};
\node (reader) [right=1cm of pcsc2] {\includegraphics[width=2cm]{$wd/bilder/my_cardreader.pdf}};
\node (card) [at=(reader.east), rotate=45] {\includegraphics[width=2cm]{$wd/bilder/smartcard.pdf}};
\begin{pgfonlayer}{background}
\node (box) [box, fit=(pcsc) (sca) (vpcd), inner ysep=1.5em] {};
\node (box2) [box, fit=(vicc) (pcsc2), inner ysep=1.5em] {};
\node [at=(box.north west)] {\includegraphics[width=1cm]{$wd/bilder/computer-tango.pdf}};
\node [at=(box2.north west)] {\includegraphics[width=1cm]{$wd/bilder/computer-tango.pdf}};
\path[linie]
(sca) edge (pcsc)
(vpcd) edge [out=south, in=north] node {\includegraphics[width=1.5cm]{$wd/bilder/simplecloud.pdf}} (vicc)
(vicc) edge (pcsc2)
(pcsc2) edge [usb] (reader.center)
;
\end{pgfonlayer}" /></p>
<p class="caption">Virtual Smart Card used in relay mode to remotely access a card</p></div><div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">This software can actually be used in a relay attack allowing full access
to the card. We discussed the impact especially on the <a class="reference external" href="http://media.ccc.de/browse/congress/2010/27c3-4297-de-die_gesamte_technik_ist_sicher.html">Relay attack
against the German ID card</a>,
but it generally concerns <em>all</em> contact-less smart cards.</p>
</div>
<div class="section" id="download-and-install">
<h2>Download and Install<a class="headerlink" href="#download-and-install" title="Permalink to this headline">¶</a></h2>
<p>The Remote Smart Card Reader is available on <a class="reference external" href="https://f-droid.org/repository/browse/?fdid=com.vsmartcard.remotesmartcardreader.app">F-Droid</a> <a class="footnote-reference" href="#id3" id="id4">[2]</a>.</p>
<a class="reference external image-reference" href="https://f-droid.org/repository/browse/?fdid=com.vsmartcard.remotesmartcardreader.app"><img alt="Remote Smart Card Reader on F-Droid" src="../_images/remote-reader-qrcode.png" style="width: 265px; height: 265px;" /></a>
<p>To manually compile the app you need to fetch the sources:</p>
<div class="highlight-sh"><div class="highlight"><pre>git clone https://github.com/frankmorgner/vsmartcard.git
</pre></div>
</div>
<p>We use <a class="reference external" href="http://developer.android.com/sdk/installing/studio.html">Android Studio</a> <a class="footnote-reference" href="#id1" id="id2">[1]</a> to build and deploy the application. Use
<em class="menuselection">File ‣ Open</em> to select <tt class="file docutils literal"><span class="pre">vsmartcard/remote-reader</span></tt>.
Attach your smartphone and choose <em class="menuselection">Run ‣ Run ‘app’</em>.</p>
<p>On the host system, where the smart card at the phone’s NFC interface is relayed to,
<abbr title="virtual smart card reader">vpcd</abbr> needs to be installed. It can be installed on Windows and Unix. On the
host computer, <strong class="command">vpcd-config</strong> prints a QR code to configure the Remote
Smart Card Reader. Scan the configuration with the bar code scanner of your
choice.</p>
</div>
<div class="section" id="question">
<h2>Question<a class="headerlink" href="#question" title="Permalink to this headline">¶</a></h2>
<p>Do you have questions, suggestions or contributions? Feedback of any kind is
more than welcome! Please use our <a class="reference external" href="https://github.com/frankmorgner/vsmartcard/issues">project trackers</a>.</p>
</div>
<div class="section" id="notes-and-references">
<h2>Notes and References<a class="headerlink" href="#notes-and-references" title="Permalink to this headline">¶</a></h2>
<table class="docutils footnote" frame="void" id="id1" rules="none">
<colgroup><col class="label" /><col /></colgroup>
<tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id2">[1]</a></td><td><a class="reference external" href="http://developer.android.com/sdk/installing/studio.html">http://developer.android.com/sdk/installing/studio.html</a></td></tr>
</tbody>
</table>
<table class="docutils footnote" frame="void" id="id3" rules="none">
<colgroup><col class="label" /><col /></colgroup>
<tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id4">[2]</a></td><td><a class="reference external" href="https://f-droid.org/repository/browse/?fdid=com.vsmartcard.remotesmartcardreader.app">https://f-droid.org/repository/browse/?fdid=com.vsmartcard.remotesmartcardreader.app</a></td></tr>
</tbody>
</table>
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