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OOB: add constraint to disallow the BLS precompiles from EIP-2537: Precompile for BLS12-381 curve operations use in Cancun #179

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OOB: add constraint to disallow the BLS precompiles from EIP-2537: Precompile for BLS12-381 curve operations use in Cancun #179

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b95460f
added note
lorenzogentile404 Jun 4, 2025
a87b5b9
re-organized point evaluation and bls precompiles
lorenzogentile404 Jun 5, 2025
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2 changes: 2 additions & 0 deletions oob/_local.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,8 @@
\def\locPrcFlagSumBlake {\locPrcFlagSum\loc{\_blake}}
\def\locPrcFlagSumModexp {\locPrcFlagSum\loc{\_modexp}}
\def\locPrcFlagSumBls {\locPrcFlagSum\loc{\_bls}}
\def\locFlagSumEipBlobTransactions {\loc{flag\_sum\_eip\_blob\_transactions}}
\def\locFlagSumEipBlsTwelvePrecompiles {\loc{flag\_sum\_eip\_bls12\_precompiles}}

% common precompile shorthands
% \def\locCalleeGas {\loc{callee\_gas}}
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48 changes: 39 additions & 9 deletions oob/shorthands.tex
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Expand Up @@ -23,7 +23,6 @@
+ & \oobInstIsEcadd _{i} \\
+ & \oobInstIsEcmul _{i} \\
+ & \oobInstIsEcpairing _{i} \\
+ & \oobInstIsPointEvaluation_{i}\\
+ & \locPrcFlagSumBls _{i} \\
\end{array} \right] \vspace{2mm} \\
\locPrcFlagSumBlake_{i} & \define &
Expand All @@ -39,7 +38,11 @@
+ & \oobInstIsModexpPricing _{i} \\
+ & \oobInstIsModexpExtract _{i} \\
\end{array} \right] \vspace{2mm} \\
\locPrcFlagSumBls_{i} & \define &
\locFlagSumEipBlobTransactions_{i} & \define &
\left[ \begin{array}{cl}
+ & \oobInstIsPointEvaluation_{i} \\
\end{array} \right] \vspace{2mm} \\
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Here you can remove the array (as we aren't summing anything, it's just one term.)

\locFlagSumEipBlsTwelvePrecompiles_{i} & \define &
\left[ \begin{array}{cl}
+ & \oobInstIsBlsGOneAdd _{i} \\
+ & \oobInstIsBlsGOneMsm _{i} \\
Expand All @@ -48,9 +51,18 @@
+ & \oobInstIsBlsPairingCheck _{i} \\
+ & \oobInstIsBlsMapFpToGOne _{i} \\
+ & \oobInstIsBlsMapFpTwoToGTwo_{i} \\
\end{array} \right]
\end{array} \right] \vspace{2mm} \\
\locPrcFlagSumBls_ {i} & \define &
\left[ \begin{array}{cl}
+ & \locFlagSumEipBlobTransactions_ {i} \\
+ & \locFlagSumEipBlsTwelvePrecompiles_ {i} \\
\end{array} \right] \vspace{2mm} \\
\end{array} \right.
\]
\saNote{}
If the Ethereum network configuration is at the Cancun hard fork, one may further impose $\locFlagSumEipBlsTwelvePrecompiles_{i} = 0$,
thereby not allowing \blsMod{} precompiles to be executed.

we also set
\[
\left\{ \begin{array}{lcl}
Expand All @@ -69,6 +81,7 @@
\]
and
\[
\hspace*{-1cm}
\left\{ \begin{array}{lcl}
\weightedFlagSumInst_{i} & \define &
\left[ \begin{array}{clcl}
Expand All @@ -92,7 +105,6 @@
+ & \oobInstEcadd & \cdot & \oobInstIsEcadd _{i} \\
+ & \oobInstEcmul & \cdot & \oobInstIsEcmul _{i} \\
+ & \oobInstEcpairing & \cdot & \oobInstIsEcpairing _{i} \\
+ & \oobInstPointEvaluation & \cdot & \oobInstIsPointEvaluation _{i} \\
+ & \weightedPrcFlagSumBls_{i} \\
\end{array} \right] \vspace{2mm} \\
\weightedPrcFlagSumBlake_{i} & \define &
Expand All @@ -108,7 +120,11 @@
+ & \oobInstModexpPricing & \cdot & \oobInstIsModexpPricing _{i} \\
+ & \oobInstModexpExtract & \cdot & \oobInstIsModexpExtract _{i} \\
\end{array} \right] \vspace{2mm} \\
\weightedPrcFlagSumBls_{i} & \define &
\weightedPrcEipBlobTransactions_{i} & \define &
\left[ \begin{array}{crcl}
+ & \oobInstPointEvaluation & \cdot & \oobInstIsPointEvaluation _{i} \\
\end{array} \right] \vspace{2mm} \\
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Similarly here, no need for an array as it's a single term.

\weightedPrcEipBlsTwelvePrecompiles_{i} & \define &
\left[ \begin{array}{crcl}
+ & \oobInstBlsGOneAdd & \cdot & \oobInstIsBlsGOneAdd _{i} \\
+ & \oobInstBlsGOneMsm & \cdot & \oobInstIsBlsGOneMsm _{i} \\
Expand All @@ -117,6 +133,11 @@
+ & \oobInstBlsPairingCheck & \cdot & \oobInstIsBlsPairingCheck _{i} \\
+ & \oobInstBlsMapFpToGOne & \cdot & \oobInstIsBlsMapFpToGOne _{i} \\
+ & \oobInstBlsMapFpTwoToGTwo & \cdot & \oobInstIsBlsMapFpTwoToGTwo _{i} \\
\end{array} \right] \vspace{2mm} \\
\weightedPrcFlagSumBls_{i} & \define &
\left[ \begin{array}{cl}
+ & \weightedPrcEipBlobTransactions_ {i} \\
+ & \weightedPrcEipBlsTwelvePrecompiles_ {i} \\
\end{array} \right]
\end{array} \right.
\]
Expand Down Expand Up @@ -159,7 +180,6 @@
\oobInstEcadd & \define & \oxEcadd \\
\oobInstEcmul & \define & \oxEcmul \\
\oobInstEcpairing & \define & \oxEcpairing \\
\oobInstPointEvaluation & \define & \oxPointEvaluation \\
\oobInstBlakeCds & \define & \oxBlakeCds \\
\oobInstBlakeParams & \define & \oxBlakeParams \\
\end{array} \right.
Expand All @@ -177,6 +197,7 @@
and
\[
\left\{ \begin{array}{lclcr}
\oobInstPointEvaluation & \define & \oxPointEvaluation \\
\oobInstBlsGOneAdd & \define & \oxBlsGOneAdd \\
\oobInstBlsGOneMsm & \define & \oxBlsGOneMsm \\
\oobInstBlsGTwoAdd & \define & \oxBlsGTwoAdd \\
Expand All @@ -192,6 +213,7 @@

We further set
\[
\hspace*{-1cm}
\left\{ \begin{array}{lcl}
\maxCtFlagSumInst_{i} & \define &
\left[ \begin{array}{clcl}
Expand All @@ -215,7 +237,6 @@
+ & \oobCtMaxEcadd & \cdot & \oobInstIsEcadd _{i} \\
+ & \oobCtMaxEcmul & \cdot & \oobInstIsEcmul _{i} \\
+ & \oobCtMaxEcpairing & \cdot & \oobInstIsEcpairing _{i} \\
+ & \oobCtMaxPointEvaluation & \cdot & \oobInstIsPointEvaluation _{i} \\
+ & \maxCtFlagSumPrcBls_{i} \\
\end{array} \right] \vspace{2mm} \\
\maxCtFlagSumPrcBlake_{i} & \define &
Expand All @@ -231,7 +252,11 @@
+ & \oobCtMaxModexpPricing & \cdot & \oobInstIsModexpPricing _{i} \\
+ & \oobCtMaxModexpExtract & \cdot & \oobInstIsModexpExtract _{i} \\
\end{array} \right] \vspace{2mm} \\
\maxCtFlagSumPrcBls_{i} & \define &
\maxCtFlagSumPrcEipBlobTransactions_{i} & \define &
\left[ \begin{array}{crcl}
+ & \oobCtMaxPointEvaluation & \cdot & \oobInstIsPointEvaluation _{i} \\
\end{array} \right] \vspace{2mm} \\
\maxCtFlagSumPrcEipBlsTwelvePrecompiles_{i} & \define &
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Same array comment

\left[ \begin{array}{crcl}
+ & \oobCtMaxBlsGOneAdd & \cdot & \oobInstIsBlsGOneAdd _{i} \\
+ & \oobCtMaxBlsGOneMsm & \cdot & \oobInstIsBlsGOneMsm _{i} \\
Expand All @@ -240,6 +265,11 @@
+ & \oobCtMaxBlsPairingCheck & \cdot & \oobInstIsBlsPairingCheck _{i} \\
+ & \oobCtMaxBlsMapFpToGOne & \cdot & \oobInstIsBlsMapFpToGOne _{i} \\
+ & \oobCtMaxBlsMapFpTwoToGTwo & \cdot & \oobInstIsBlsMapFpTwoToGTwo _{i} \\
\end{array} \right] \vspace{2mm} \\
\maxCtFlagSumPrcBls_{i} & \define &
\left[ \begin{array}{cl}
+ & \maxCtFlagSumPrcEipBlobTransactions_ {i} \\
+ & \maxCtFlagSumPrcEipBlsTwelvePrecompiles_ {i} \\
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It should be

\macroName _{i}

\end{array} \right]
\end{array} \right.
\]
Expand Down Expand Up @@ -283,7 +313,6 @@
\oobCtMaxEcadd & \define & 2 \\
\oobCtMaxEcmul & \define & 2 \\
\oobCtMaxEcpairing & \define & 4 \\
\oobCtMaxPointEvaluation & \define & 3 \\
\end{array} \right. \\
\left\{ \begin{array}{lcl}
\oobCtMaxBlakeCds & \define & 1 \\
Expand All @@ -298,6 +327,7 @@
\oobCtMaxModexpExtract & \define & 3 \\
\end{array} \right. \\
\left\{ \begin{array}{lcl}
\oobCtMaxPointEvaluation & \define & 3 \\
\oobCtMaxBlsGOneAdd & \define & 3 \\
\oobCtMaxBlsGOneMsm & \define & 6 \\
\oobCtMaxBlsGTwoAdd & \define & 3 \\
Expand Down
1 change: 1 addition & 0 deletions oob/specialized.tex
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@@ -1,6 +1,7 @@
We define a series of simple parametrized constraint systems for instructions that are sent to the \addMod{} module, the \modMod{} module and the \wcpMod{} module.
Let $\relof$ be a small nonnegative integer.
\[
\hspace*{-0.5cm}
\left\{ \begin{array}{lcl}
\oobCallToAdd
{i}{\relof}
Expand Down
49 changes: 28 additions & 21 deletions pkg/precompiles.sty
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Expand Up @@ -299,27 +299,34 @@
\newcommand{\modArgTwoLo} {\col{MOD\_ARG2\_LO}}
\newcommand{\modRes} {\col{MOD\_RES}}

\newcommand{\GQuadDivisor} {G_{\text{quaddivisor}}}
\newcommand{\GQuadDivisorValue} {3}
\newcommand{\cycleModexp} {\redm{15}}
\newcommand{\cycleNotModexp} {\redm{3}}
\newcommand{\weightedPhaseFlagSum} {\loc{phase\_sum}}
\newcommand{\indexMaxFlagSum} {\loc{index\_max\_sum}}
\newcommand{\flagSum} {\loc{flag\_sum}}
\newcommand{\weightedFlagSum} {\loc{wght\_sum}}
\newcommand{\weightedFlagSumInst} {\weightedFlagSum\loc{\_inst}}
\newcommand{\weightedPrcFlagSum} {\weightedFlagSum\loc{\_prc}}
\newcommand{\weightedPrcFlagSumCommon} {\weightedPrcFlagSum\loc{\_common}}
\newcommand{\weightedPrcFlagSumBlake} {\weightedPrcFlagSum\loc{\_blake}}
\newcommand{\weightedPrcFlagSumModexp} {\weightedPrcFlagSum\loc{\_modexp}}
\newcommand{\weightedPrcFlagSumBls} {\weightedPrcFlagSum\loc{\_bls}}
\newcommand{\maxCtFlagSum} {\loc{ct\_max\_sum}}
\newcommand{\maxCtFlagSumInst} {\maxCtFlagSum\loc{\_inst}}
\newcommand{\maxCtFlagSumPrc} {\maxCtFlagSum\loc{\_prc}}
\newcommand{\maxCtFlagSumPrcCommon} {\maxCtFlagSumPrc\loc{\_common}}
\newcommand{\maxCtFlagSumPrcBlake} {\maxCtFlagSumPrc\loc{\_blake}}
\newcommand{\maxCtFlagSumPrcModexp} {\maxCtFlagSumPrc\loc{\_modexp}}
\newcommand{\maxCtFlagSumPrcBls} {\maxCtFlagSumPrc\loc{\_bls}}
\newcommand{\GQuadDivisor} {G_{\text{quaddivisor}}}
\newcommand{\GQuadDivisorValue} {3}
\newcommand{\cycleModexp} {\redm{15}}
\newcommand{\cycleNotModexp} {\redm{3}}
\newcommand{\weightedPhaseFlagSum} {\loc{phase\_sum}}
\newcommand{\indexMaxFlagSum} {\loc{index\_max\_sum}}
\newcommand{\flagSum} {\loc{flag\_sum}}
\newcommand{\weightedFlagSum} {\loc{wght\_sum}}
\newcommand{\weightedFlagSumInst} {\weightedFlagSum\loc{\_inst}}
\newcommand{\weightedPrcFlagSum} {\weightedFlagSum\loc{\_prc}}
\newcommand{\weightedPrcFlagSumCommon} {\weightedPrcFlagSum\loc{\_common}}
\newcommand{\weightedPrcFlagSumBlake} {\weightedPrcFlagSum\loc{\_blake}}
\newcommand{\weightedPrcFlagSumModexp} {\weightedPrcFlagSum\loc{\_modexp}}
\newcommand{\weightedPrcFlagSumBls} {\weightedPrcFlagSum\loc{\_bls}}

\newcommand{\weightedPrcEipBlobTransactions} {\weightedPrcFlagSum\loc{\_eip\_blob\_transactions}}
\newcommand{\weightedPrcEipBlsTwelvePrecompiles} {\weightedPrcFlagSum\loc{\_eip\_bls12\_precompiles}}

\newcommand{\maxCtFlagSum} {\loc{ct\_max\_sum}}
\newcommand{\maxCtFlagSumInst} {\maxCtFlagSum\loc{\_inst}}
\newcommand{\maxCtFlagSumPrc} {\maxCtFlagSum\loc{\_prc}}
\newcommand{\maxCtFlagSumPrcCommon} {\maxCtFlagSumPrc\loc{\_common}}
\newcommand{\maxCtFlagSumPrcBlake} {\maxCtFlagSumPrc\loc{\_blake}}
\newcommand{\maxCtFlagSumPrcModexp} {\maxCtFlagSumPrc\loc{\_modexp}}
\newcommand{\maxCtFlagSumPrcBls} {\maxCtFlagSumPrc\loc{\_bls}}

\newcommand{\maxCtFlagSumPrcEipBlobTransactions} {\maxCtFlagSumPrc\loc{\_eip\_blob\_transactions}}
\newcommand{\maxCtFlagSumPrcEipBlsTwelvePrecompiles} {\maxCtFlagSumPrc\loc{\_eip\_bls12\_precompiles}}

\newcommand{\hubMmuMmioEcDataPrediction} {\colorbox{solarized-orange}{\textbf{~~$\hubMod \rightarrow \mmuMod \rightarrow \mmioMod \rightarrow \ecDataMod$ prediction~~}}}
\newcommand{\hubMmuMmioBlsPrediction} {\colorbox{solarized-orange}{\textbf{~~$\hubMod \rightarrow \mmuMod \rightarrow \mmioMod \rightarrow \blsMod$ prediction~~}}}
Expand Down