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      <h3 id="zerocoin-anonymous-distributed-e-cash-from-bitcoin">Zerocoin: Anonymous Distributed E-Cash from Bitcoin</h3>
<h4 id="ian-miers-christina-garman-matthew-green-aviel-d-rubin">Ian Miers, Christina Garman, Matthew Green, Aviel D. Rubin</h4>
<p><a href="http://www.ieee-security.org/TC/SP2013/">IEEE Symposium on Security and Privacy (Oakland) 2013</a> | <a href="/media/pdf/ZerocoinOakland.pdf">PDF</a>| Abstract:</p>
<blockquote>
<p>Bitcoin is the &#64257;rst e-cash system to see widespread
adoption. While Bitcoin offers the potential for new types of
&#64257;nancial interaction, it has signi&#64257;cant limitations regarding
privacy. Speci&#64257;cally, because the Bitcoin transaction log is
completely public, users&rsquo; privacy is protected only through
the use of pseudonyms. In this paper we propose Zerocoin, a
cryptographic extension to Bitcoin  that augments the protocol
to allow for fully anonymous currency transactions. Our system
uses standard cryptographic assumptions and does not introduce
new trusted parties or otherwise change the security model of
Bitcoin. We detail Zerocoin&rsquo;s cryptographic construction, its
integration into Bitcoin, and examine its performance both in
 terms of computation and impact on the Bitcoin protocol.</p>
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                <p>Created by <a href="http://hms.isi.jhu.edu/index.php/people/11.html">Ian Miers</a> <a href="https://twitter.com/imichaelmiers">@imichaelmiers</a></p>

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