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<H1>[ZcF-general] Cryptolux Project Report</H1>
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<B>Daniel Feher</B>
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<A HREF="mailto:general%40lists.zfnd.org?Subject=Re%3A%20%5BZcF-general%5D%20Cryptolux%20Project%20Report&In-Reply-To=%3CCAOdzgny_LFR8Ucbg9fXc51Y6hFCs8tEC-x08ED3rftdMuwcxhQ%40mail.gmail.com%3E"
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TITLE="[ZcF-general] Cryptolux Project Report">daniel.feher at uni.lu
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<I>Mon Jul 29 05:07:34 EDT 2019</I>
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<PRE>In our project we have continued our earlier works on empirical analysis in
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Zcash. This work partly consisted of improving and refining our previous
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work. We have tweaked our heuristics to create an even more precise and
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verifiable mining transaction linkage, which resulted in slightly worse
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results than in our original report, but currently every linkage is done
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with a very high confidence level (while previously this confidence was
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lower). This work (titled 'Privacy and Linkability of Mining in Zcash') was
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accepted and presented at IEEE CNS 2019. The paper can be found at the
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following link: <A HREF="https://orbilu.uni.lu/handle/10993/39996">https://orbilu.uni.lu/handle/10993/39996</A>
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Our second main area of research was mainly considering mining hardware. In
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detail, what is the mining hardware landscape, how the different GPUs and
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mining rigs are distributed. Furthermore, we have investigated the privacy
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of a single miner based on the miner's activity in the live blockchain,
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what information can be learned from it. Finally, we have investigated the
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effect of ASIC miners on the mining landscape in terms of decentralization.
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This work (titled 'Portrait of a Miner in a Landscape') was accepted and
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presented at the CryBlock 2019 workshop. The paper can be found at the
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following link: <A HREF="https://orbilu.uni.lu/handle/10993/39995">https://orbilu.uni.lu/handle/10993/39995</A>
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These two topics were also presented at the Zcon1 conference, the talk is
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available at the following link: <A HREF="https://www.youtube.com/watch?v=8bydpHmP-7k">https://www.youtube.com/watch?v=8bydpHmP-7k</A>
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Our last main topic of research consisted of active attacks on the Zcash
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blockchain. The first attack we have investigated is our previously
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presented Danaan-gift attack, which we describe with much more scrutiny
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than before. The second attack is the Dust attack, which exploits the
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publicly available number of inputs and outputs of a shielded sapling
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transaction. This work (titled 'Privacy Aspects and Subliminal Channels in
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Zcash') is part of a larger paper that is accepted and going to be
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presented at CCS 19.
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