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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.
53 lines
1.5 KiB
TeX
53 lines
1.5 KiB
TeX
\section{Multi-Vendor TEE Support}
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\subsection{Vendor-Specific Quote Formats}
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A-Chain supports native quote formats from all major TEE vendors:
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\begin{table}[h]
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\centering
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\begin{tabular}{@{}llll@{}}
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\toprule
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\textbf{Vendor} & \textbf{Quote Size} & \textbf{Verification Time} & \textbf{Root CA Update} \\ \midrule
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Intel SGX (DCAP) & 4,500 bytes & 45ms & Quarterly \\
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AMD SEV-SNP & 1,184 bytes & 32ms & Bi-annual \\
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NVIDIA H100 CC & 2,048 bytes & 28ms & Monthly \\
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ARM CCA & 1,024 bytes & 18ms & Quarterly \\ \bottomrule
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\end{tabular}
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\caption{TEE vendor attestation characteristics}
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\end{table}
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\subsection{Precompile Implementation}
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The attestation precompile at address 0xAAA provides gas-efficient native verification:
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\begin{lstlisting}[language=Solidity, basicstyle=\small\ttfamily]
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interface IAttestationPrecompile {
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function verifyQuote(
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bytes calldata quote,
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bytes calldata rootCA,
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TEEVendor vendor
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) external view returns (bool valid, bytes32 deviceId);
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function verifyProofOfExecution(
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ProofOfExecution calldata proof
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) external returns (bool);
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function getDeviceStatus(
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bytes32 deviceId
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) external view returns (DeviceStatus memory);
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}
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\end{lstlisting}
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\textbf{Gas Costs:}
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\begin{itemize}
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\item Base verification: 50,000 gas
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\item SGX quote: +80,000 gas
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\item SEV-SNP quote: +60,000 gas
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\item H100 quote: +55,000 gas
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\item ARM CCA quote: +40,000 gas
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\item Registry update: +20,000 gas
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\end{itemize}
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