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zeekay
abf99d05fc
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.
58 lines
1.7 KiB
TeX
58 lines
1.7 KiB
TeX
\section{Implementation}
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\subsection{mpckeyd Daemon}
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\begin{algorithmic}[1]
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\State \textbf{function} \textsc{MpckeyMain}()
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\State $shares \gets \text{LoadKeyShares}()$
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\State $xchainWatcher \gets \text{StartWatcher}()$
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\State
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\While{true}
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\State $swaps \gets xchainWatcher.\text{GetPendingSwaps}()$
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\For{each $swap \in swaps$}
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\State $assetType \gets swap.\text{GetAssetType}()$
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\State $share \gets shares[assetType]$
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\State
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\If{$assetType = \texttt{BTC}$}
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\State $sig \gets \text{MuSig2Sign}(swap, share)$
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\ElsIf{$assetType = \texttt{ETH}$}
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\State $sig \gets \text{CGG21Sign}(swap, share)$
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\ElsIf{$assetType = \texttt{XRPL}$}
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\State $sig \gets \text{FrostSign}(swap, share)$
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\EndIf
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\State
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\State $\text{BroadcastShare}(sig)$
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\State
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\If{$\text{IsLeader}()$ and $\text{HasQuorum}()$}
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\State $aggSig \gets \text{AggregateShares}()$
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\State $\text{SubmitSwapSigTx}(swap.ID, aggSig)$
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\EndIf
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\EndFor
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\State $\text{Sleep}(100\text{ms})$
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\EndWhile
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\State \textbf{end function}
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\end{algorithmic}
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\subsection{Key Management}
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\textbf{Distributed Key Generation:}
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\begin{itemize}
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\item Performed during validator onboarding
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\item No trusted dealer (all keys generated collaboratively)
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\item Shares stored in encrypted HSM or TEE
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\item Regular key rotation (every 90 days)
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\end{itemize}
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\textbf{Share Storage:}
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\begin{itemize}
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\item AES-256 encryption at rest
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\item Hardware security module (HSM) support
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\item Trusted execution environment (TEE) integration
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\item Multi-layer access control
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\end{itemize}
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