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zeekay
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Restructured from flat .tex/.pdf files into per-paper subdirectories. Added Antje Worring as co-author on all papers. Synced PDFs to pdfs/ for download site.
44 lines
1.5 KiB
TeX
44 lines
1.5 KiB
TeX
\section{Implementation on Lux}
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\subsection{F-Chain: LiquidFHE Runtime}
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The Lux F-Chain provides the FHE computation environment:
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\begin{itemize}[leftmargin=2em]
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\item TFHE boolean circuits via the \texttt{luxfi/lattice} library.
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\item Parameters: $n = 1024$, $q \approx 2^{27}$, NIST Level 1 security (128-bit).
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\item Bootstrapping key size: 24 MB per user key.
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\item Gate evaluation: 12ms per bootstrapped gate (single core), 3.2ms with 4-way parallelism.
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\end{itemize}
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\subsection{M-Chain: MPC Threshold Network}
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The Lux M-Chain provides the threshold decryption infrastructure:
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\begin{itemize}[leftmargin=2em]
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\item FROST-based DKG for FHE key generation.
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\item $t$-of-$n$ threshold decryption with configurable $(t, n)$.
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\item Default configuration: $3$-of-$5$ for application chains, $5$-of-$9$ for the primary network.
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\item Decryption latency: 35ms for $3$-of-$5$, 82ms for $5$-of-$9$ (including network round trips).
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\end{itemize}
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\subsection{End-to-End Benchmarks}
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\begin{center}
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\begin{tabular}{lrr}
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\toprule
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\textbf{Operation} & \textbf{Time} & \textbf{Size} \\
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\midrule
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Order encryption (3 fields) & 0.4ms & 12 KB \\
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Price comparison (16-bit) & 38ms & --- \\
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Quantity minimum (16-bit) & 41ms & --- \\
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Full match (compare + fill) & 47ms & --- \\
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Threshold decryption ($3$-of-$5$) & 35ms & 1.2 KB \\
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Threshold decryption ($5$-of-$9$) & 82ms & 2.1 KB \\
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FROST attestation & 12ms & 64 B \\
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\midrule
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\textbf{End-to-end match + decrypt} & \textbf{94ms} & --- \\
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\bottomrule
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\end{tabular}
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\end{center}
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