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EIP-7885 Precompile for NTT operations

DraftCorecreated 2025-02-12

Proposal to add a precompiled contract that performs number theoretical transformation (NTT) and inverse (InvNTT).

Authors: Renaud Dubois (@rdubois-crypto), Simon Masson (@simonmasson), Yoon Hyoung Lee (@yhl125)

What the specification covers

AbstractMotivationSpecificationConstantsField parametersNTT_FWNTT_INVNTT_VECMULMODNTT_VECADDMODRationaleGas Cost AnalysisNTT Precompiles (0x12, 0x13) - Scheme-Specific Cost ModelVector Operations (0x14, 0x15) - Dynamic Cost ModelFields of interestBenchmarksPure solidityNative Client ImplementationEnd-to-End Signature Verification with PrecompilesBackwards CompatibilityTest CasesNTT Precompile Tests (0x12)Vector Operations Tests (0x13, 0x14)Reference ImplementationSecurity ConsiderationsCopyright

This proposal declares no Solidity interface, so there is nothing to compute. It may be a core protocol change, a meta proposal, or written in prose only.

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