633 lines
23 KiB
Plaintext
633 lines
23 KiB
Plaintext
// SPDX-License-Identifier: GPL-3.0
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/*
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Copyright 2021 0KIMS association.
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This file is generated with [snarkJS](https://github.com/iden3/snarkjs).
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snarkJS is a free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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snarkJS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with snarkJS. If not, see <https://www.gnu.org/licenses/>.
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*/
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pragma solidity >=0.7.0 <0.9.0;
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contract PlonkVerifier {
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uint16 constant n = <%=2**power%>;
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uint16 constant nPublic = <%=nPublic%>;
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uint16 constant nLagrange = <%=Math.max(nPublic, 1)%>;
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uint256 constant Qmx = <%=Qm[0]%>;
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uint256 constant Qmy = <%=Qm[1]%>;
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uint256 constant Qlx = <%=Ql[0]%>;
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uint256 constant Qly = <%=Ql[1]%>;
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uint256 constant Qrx = <%=Qr[0]%>;
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uint256 constant Qry = <%=Qr[1]%>;
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uint256 constant Qox = <%=Qo[0]%>;
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uint256 constant Qoy = <%=Qo[1]%>;
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uint256 constant Qcx = <%=Qc[0]%>;
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uint256 constant Qcy = <%=Qc[1]%>;
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uint256 constant S1x = <%=S1[0]%>;
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uint256 constant S1y = <%=S1[1]%>;
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uint256 constant S2x = <%=S2[0]%>;
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uint256 constant S2y = <%=S2[1]%>;
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uint256 constant S3x = <%=S3[0]%>;
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uint256 constant S3y = <%=S3[1]%>;
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uint256 constant k1 = 2;
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uint256 constant k2 = 3;
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uint256 constant X2x1 = <%=X_2[0][0]%>;
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uint256 constant X2x2 = <%=X_2[0][1]%>;
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uint256 constant X2y1 = <%=X_2[1][0]%>;
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uint256 constant X2y2 = <%=X_2[1][1]%>;
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uint256 constant q = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
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uint256 constant qf = 21888242871839275222246405745257275088696311157297823662689037894645226208583;
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uint256 constant w1 = 19540430494807482326159819597004422086093766032135589407132600596362845576832;
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uint256 constant G1x = 1;
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uint256 constant G1y = 2;
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uint256 constant G2x1 = 10857046999023057135944570762232829481370756359578518086990519993285655852781;
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uint256 constant G2x2 = 11559732032986387107991004021392285783925812861821192530917403151452391805634;
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uint256 constant G2y1 = 8495653923123431417604973247489272438418190587263600148770280649306958101930;
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uint256 constant G2y2 = 4082367875863433681332203403145435568316851327593401208105741076214120093531;
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uint16 constant pA = 32;
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uint16 constant pB = 96;
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uint16 constant pC = 160;
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uint16 constant pZ = 224;
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uint16 constant pT1 = 288;
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uint16 constant pT2 = 352;
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uint16 constant pT3 = 416;
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uint16 constant pWxi = 480;
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uint16 constant pWxiw = 544;
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uint16 constant pEval_a = 608;
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uint16 constant pEval_b = 640;
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uint16 constant pEval_c = 672;
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uint16 constant pEval_s1 = 704;
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uint16 constant pEval_s2 = 736;
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uint16 constant pEval_zw = 768;
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uint16 constant pEval_r = 800;
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uint16 constant pAlpha = 0;
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uint16 constant pBeta = 32;
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uint16 constant pGamma = 64;
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uint16 constant pXi = 96;
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uint16 constant pXin = 128;
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uint16 constant pBetaXi = 160;
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uint16 constant pV1 = 192;
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uint16 constant pV2 = 224;
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uint16 constant pV3 = 256;
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uint16 constant pV4 = 288;
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uint16 constant pV5 = 320;
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uint16 constant pV6 = 352;
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uint16 constant pU = 384;
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uint16 constant pPl = 416;
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uint16 constant pEval_t = 448;
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uint16 constant pA1 = 480;
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uint16 constant pB1 = 544;
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uint16 constant pZh = 608;
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uint16 constant pZhInv = 640;
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<% for (let i=1; i<=Math.max(nPublic, 1); i++) { %>
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uint16 constant pEval_l<%=i%> = <%=640+i*32%>;
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<% } %>
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uint16 constant lastMem = <%=672+32*Math.max(nPublic,1)%>;
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function verifyProof(bytes memory proof, uint[] memory pubSignals) public view returns (bool) {
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assembly {
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/////////
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// Computes the inverse using the extended euclidean algorithm
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/////////
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function inverse(a, q) -> inv {
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let t := 0
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let newt := 1
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let r := q
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let newr := a
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let quotient
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let aux
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for { } newr { } {
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quotient := sdiv(r, newr)
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aux := sub(t, mul(quotient, newt))
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t:= newt
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newt:= aux
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aux := sub(r,mul(quotient, newr))
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r := newr
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newr := aux
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}
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if gt(r, 1) { revert(0,0) }
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if slt(t, 0) { t:= add(t, q) }
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inv := t
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}
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///////
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// Computes the inverse of an array of values
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// See https://vitalik.ca/general/2018/07/21/starks_part_3.html in section where explain fields operations
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//////
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function inverseArray(pVals, n) {
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let pAux := mload(0x40) // Point to the next free position
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let pIn := pVals
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let lastPIn := add(pVals, mul(n, 32)) // Read n elemnts
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let acc := mload(pIn) // Read the first element
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pIn := add(pIn, 32) // Point to the second element
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let inv
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for { } lt(pIn, lastPIn) {
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pAux := add(pAux, 32)
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pIn := add(pIn, 32)
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}
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{
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mstore(pAux, acc)
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acc := mulmod(acc, mload(pIn), q)
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}
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acc := inverse(acc, q)
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// At this point pAux pint to the next free position we substract 1 to point to the last used
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pAux := sub(pAux, 32)
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// pIn points to the n+1 element, we substract to point to n
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pIn := sub(pIn, 32)
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lastPIn := pVals // We don't process the first element
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for { } gt(pIn, lastPIn) {
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pAux := sub(pAux, 32)
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pIn := sub(pIn, 32)
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}
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{
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inv := mulmod(acc, mload(pAux), q)
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acc := mulmod(acc, mload(pIn), q)
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mstore(pIn, inv)
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}
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// pIn points to first element, we just set it.
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mstore(pIn, acc)
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}
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function checkField(v) {
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if iszero(lt(v, q)) {
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mstore(0, 0)
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return(0,0x20)
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}
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}
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function checkInput(pProof) {
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if iszero(eq(mload(pProof), 800 )) {
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mstore(0, 0)
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return(0,0x20)
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}
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checkField(mload(add(pProof, pEval_a)))
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checkField(mload(add(pProof, pEval_b)))
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checkField(mload(add(pProof, pEval_c)))
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checkField(mload(add(pProof, pEval_s1)))
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checkField(mload(add(pProof, pEval_s2)))
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checkField(mload(add(pProof, pEval_zw)))
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checkField(mload(add(pProof, pEval_r)))
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// Points are checked in the point operations precompiled smart contracts
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}
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function calculateChallanges(pProof, pMem) {
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let a
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let b
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b := mod(keccak256(add(pProof, pA), 192), q)
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mstore( add(pMem, pBeta), b)
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mstore( add(pMem, pGamma), mod(keccak256(add(pMem, pBeta), 32), q))
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mstore( add(pMem, pAlpha), mod(keccak256(add(pProof, pZ), 64), q))
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a := mod(keccak256(add(pProof, pT1), 192), q)
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mstore( add(pMem, pXi), a)
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mstore( add(pMem, pBetaXi), mulmod(b, a, q))
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<%for (let i=0; i<power;i++) {%>
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a:= mulmod(a, a, q)
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<%}%>
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mstore( add(pMem, pXin), a)
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a:= mod(add(sub(a, 1),q), q)
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mstore( add(pMem, pZh), a)
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mstore( add(pMem, pZhInv), a) // We will invert later together with lagrange pols
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let v1 := mod(keccak256(add(pProof, pEval_a), 224), q)
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mstore( add(pMem, pV1), v1)
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a := mulmod(v1, v1, q)
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mstore( add(pMem, pV2), a)
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a := mulmod(a, v1, q)
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mstore( add(pMem, pV3), a)
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a := mulmod(a, v1, q)
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mstore( add(pMem, pV4), a)
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a := mulmod(a, v1, q)
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mstore( add(pMem, pV5), a)
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a := mulmod(a, v1, q)
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mstore( add(pMem, pV6), a)
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mstore( add(pMem, pU), mod(keccak256(add(pProof, pWxi), 128), q))
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}
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function calculateLagrange(pMem) {
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let w := 1
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<% for (let i=1; i<=Math.max(nPublic, 1); i++) { %>
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mstore(
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add(pMem, pEval_l<%=i%>),
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mulmod(
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n,
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mod(
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add(
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sub(
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mload(add(pMem, pXi)),
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w
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),
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q
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),
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q
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),
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q
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)
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)
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<% if (i<Math.max(nPublic, 1)) { %>
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w := mulmod(w, w1, q)
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<% } %>
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<% } %>
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inverseArray(add(pMem, pZhInv), <%=Math.max(nPublic, 1)+1%> )
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let zh := mload(add(pMem, pZh))
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w := 1
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<% for (let i=1; i<=Math.max(nPublic, 1); i++) { %>
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<% if (i==1) { %>
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mstore(
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add(pMem, pEval_l1 ),
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mulmod(
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mload(add(pMem, pEval_l1 )),
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zh,
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q
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)
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)
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<% } else { %>
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mstore(
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add(pMem, pEval_l<%=i%>),
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mulmod(
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w,
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mulmod(
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mload(add(pMem, pEval_l<%=i%>)),
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zh,
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q
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),
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q
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)
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)
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<% } %>
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<% if (i<Math.max(nPublic, 1)) { %>
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w := mulmod(w, w1, q)
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<% } %>
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<% } %>
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}
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function calculatePl(pMem, pPub) {
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let pl := 0
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<% for (let i=0; i<nPublic; i++) { %>
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pl := mod(
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add(
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sub(
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pl,
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mulmod(
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mload(add(pMem, pEval_l<%=i+1%>)),
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mload(add(pPub, <%=32+i*32%>)),
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q
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)
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),
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q
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),
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q
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)
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<% } %>
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mstore(add(pMem, pPl), pl)
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}
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function calculateT(pProof, pMem) {
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let t
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let t1
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let t2
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t := addmod(
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mload(add(pProof, pEval_r)),
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mload(add(pMem, pPl)),
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q
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)
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t1 := mulmod(
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mload(add(pProof, pEval_s1)),
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mload(add(pMem, pBeta)),
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q
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)
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t1 := addmod(
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t1,
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mload(add(pProof, pEval_a)),
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q
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)
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t1 := addmod(
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t1,
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mload(add(pMem, pGamma)),
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q
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)
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t2 := mulmod(
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mload(add(pProof, pEval_s2)),
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mload(add(pMem, pBeta)),
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q
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)
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t2 := addmod(
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t2,
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mload(add(pProof, pEval_b)),
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q
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)
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t2 := addmod(
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t2,
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mload(add(pMem, pGamma)),
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q
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)
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t1 := mulmod(t1, t2, q)
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t2 := addmod(
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mload(add(pProof, pEval_c)),
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mload(add(pMem, pGamma)),
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q
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)
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t1 := mulmod(t1, t2, q)
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t1 := mulmod(t1, mload(add(pProof, pEval_zw)), q)
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t1 := mulmod(t1, mload(add(pMem, pAlpha)), q)
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t2 := mulmod(
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mload(add(pMem, pEval_l1)),
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mload(add(pMem, pAlpha)),
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q
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)
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t2 := mulmod(
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t2,
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mload(add(pMem, pAlpha)),
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q
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)
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t1 := addmod(t1, t2, q)
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t := mod(sub(add(t, q), t1), q)
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t := mulmod(t, mload(add(pMem, pZhInv)), q)
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mstore( add(pMem, pEval_t) , t)
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}
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function g1_set(pR, pP) {
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mstore(pR, mload(pP))
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mstore(add(pR, 32), mload(add(pP,32)))
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}
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function g1_acc(pR, pP) {
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let mIn := mload(0x40)
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mstore(mIn, mload(pR))
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mstore(add(mIn,32), mload(add(pR, 32)))
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mstore(add(mIn,64), mload(pP))
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mstore(add(mIn,96), mload(add(pP, 32)))
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let success := staticcall(sub(gas(), 2000), 6, mIn, 128, pR, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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}
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function g1_mulAcc(pR, pP, s) {
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let success
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let mIn := mload(0x40)
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mstore(mIn, mload(pP))
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mstore(add(mIn,32), mload(add(pP, 32)))
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mstore(add(mIn,64), s)
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success := staticcall(sub(gas(), 2000), 7, mIn, 96, mIn, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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mstore(add(mIn,64), mload(pR))
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mstore(add(mIn,96), mload(add(pR, 32)))
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success := staticcall(sub(gas(), 2000), 6, mIn, 128, pR, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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}
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function g1_mulAccC(pR, x, y, s) {
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let success
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let mIn := mload(0x40)
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mstore(mIn, x)
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mstore(add(mIn,32), y)
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mstore(add(mIn,64), s)
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success := staticcall(sub(gas(), 2000), 7, mIn, 96, mIn, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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mstore(add(mIn,64), mload(pR))
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mstore(add(mIn,96), mload(add(pR, 32)))
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success := staticcall(sub(gas(), 2000), 6, mIn, 128, pR, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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}
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function g1_mulSetC(pR, x, y, s) {
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let success
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let mIn := mload(0x40)
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mstore(mIn, x)
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mstore(add(mIn,32), y)
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mstore(add(mIn,64), s)
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success := staticcall(sub(gas(), 2000), 7, mIn, 96, pR, 64)
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if iszero(success) {
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mstore(0, 0)
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return(0,0x20)
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}
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}
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function calculateA1(pProof, pMem) {
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let p := add(pMem, pA1)
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g1_set(p, add(pProof, pWxi))
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g1_mulAcc(p, add(pProof, pWxiw), mload(add(pMem, pU)))
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}
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function calculateB1(pProof, pMem) {
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let s
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let s1
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let p := add(pMem, pB1)
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// Calculate D
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s := mulmod( mload(add(pProof, pEval_a)), mload(add(pMem, pV1)), q)
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g1_mulSetC(p, Qlx, Qly, s)
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s := mulmod( s, mload(add(pProof, pEval_b)), q)
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g1_mulAccC(p, Qmx, Qmy, s)
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s := mulmod( mload(add(pProof, pEval_b)), mload(add(pMem, pV1)), q)
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g1_mulAccC(p, Qrx, Qry, s)
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s := mulmod( mload(add(pProof, pEval_c)), mload(add(pMem, pV1)), q)
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g1_mulAccC(p, Qox, Qoy, s)
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s :=mload(add(pMem, pV1))
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g1_mulAccC(p, Qcx, Qcy, s)
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s := addmod(mload(add(pProof, pEval_a)), mload(add(pMem, pBetaXi)), q)
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s := addmod(s, mload(add(pMem, pGamma)), q)
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s1 := mulmod(k1, mload(add(pMem, pBetaXi)), q)
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s1 := addmod(s1, mload(add(pProof, pEval_b)), q)
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s1 := addmod(s1, mload(add(pMem, pGamma)), q)
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s := mulmod(s, s1, q)
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s1 := mulmod(k2, mload(add(pMem, pBetaXi)), q)
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s1 := addmod(s1, mload(add(pProof, pEval_c)), q)
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s1 := addmod(s1, mload(add(pMem, pGamma)), q)
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s := mulmod(s, s1, q)
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s := mulmod(s, mload(add(pMem, pAlpha)), q)
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s := mulmod(s, mload(add(pMem, pV1)), q)
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s1 := mulmod(mload(add(pMem, pEval_l1)), mload(add(pMem, pAlpha)), q)
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s1 := mulmod(s1, mload(add(pMem, pAlpha)), q)
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s1 := mulmod(s1, mload(add(pMem, pV1)), q)
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s := addmod(s, s1, q)
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s := addmod(s, mload(add(pMem, pU)), q)
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g1_mulAcc(p, add(pProof, pZ), s)
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|
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s := mulmod(mload(add(pMem, pBeta)), mload(add(pProof, pEval_s1)), q)
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s := addmod(s, mload(add(pProof, pEval_a)), q)
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s := addmod(s, mload(add(pMem, pGamma)), q)
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s1 := mulmod(mload(add(pMem, pBeta)), mload(add(pProof, pEval_s2)), q)
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s1 := addmod(s1, mload(add(pProof, pEval_b)), q)
|
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s1 := addmod(s1, mload(add(pMem, pGamma)), q)
|
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s := mulmod(s, s1, q)
|
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s := mulmod(s, mload(add(pMem, pAlpha)), q)
|
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s := mulmod(s, mload(add(pMem, pV1)), q)
|
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s := mulmod(s, mload(add(pMem, pBeta)), q)
|
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s := mulmod(s, mload(add(pProof, pEval_zw)), q)
|
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s := mod(sub(q, s), q)
|
|
g1_mulAccC(p, S3x, S3y, s)
|
|
|
|
|
|
// calculate F
|
|
g1_acc(p , add(pProof, pT1))
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|
|
|
s := mload(add(pMem, pXin))
|
|
g1_mulAcc(p, add(pProof, pT2), s)
|
|
|
|
s := mulmod(s, s, q)
|
|
g1_mulAcc(p, add(pProof, pT3), s)
|
|
|
|
g1_mulAcc(p, add(pProof, pA), mload(add(pMem, pV2)))
|
|
g1_mulAcc(p, add(pProof, pB), mload(add(pMem, pV3)))
|
|
g1_mulAcc(p, add(pProof, pC), mload(add(pMem, pV4)))
|
|
g1_mulAccC(p, S1x, S1y, mload(add(pMem, pV5)))
|
|
g1_mulAccC(p, S2x, S2y, mload(add(pMem, pV6)))
|
|
|
|
// calculate E
|
|
s := mload(add(pMem, pEval_t))
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_r)), mload(add(pMem, pV1)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_a)), mload(add(pMem, pV2)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_b)), mload(add(pMem, pV3)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_c)), mload(add(pMem, pV4)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_s1)), mload(add(pMem, pV5)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_s2)), mload(add(pMem, pV6)), q), q)
|
|
s := addmod(s, mulmod(mload(add(pProof, pEval_zw)), mload(add(pMem, pU)), q), q)
|
|
s := mod(sub(q, s), q)
|
|
g1_mulAccC(p, G1x, G1y, s)
|
|
|
|
|
|
// Last part of B
|
|
s := mload(add(pMem, pXi))
|
|
g1_mulAcc(p, add(pProof, pWxi), s)
|
|
|
|
s := mulmod(mload(add(pMem, pU)), mload(add(pMem, pXi)), q)
|
|
s := mulmod(s, w1, q)
|
|
g1_mulAcc(p, add(pProof, pWxiw), s)
|
|
|
|
}
|
|
|
|
function checkPairing(pMem) -> isOk {
|
|
let mIn := mload(0x40)
|
|
mstore(mIn, mload(add(pMem, pA1)))
|
|
mstore(add(mIn,32), mload(add(add(pMem, pA1), 32)))
|
|
mstore(add(mIn,64), X2x2)
|
|
mstore(add(mIn,96), X2x1)
|
|
mstore(add(mIn,128), X2y2)
|
|
mstore(add(mIn,160), X2y1)
|
|
mstore(add(mIn,192), mload(add(pMem, pB1)))
|
|
let s := mload(add(add(pMem, pB1), 32))
|
|
s := mod(sub(qf, s), qf)
|
|
mstore(add(mIn,224), s)
|
|
mstore(add(mIn,256), G2x2)
|
|
mstore(add(mIn,288), G2x1)
|
|
mstore(add(mIn,320), G2y2)
|
|
mstore(add(mIn,352), G2y1)
|
|
|
|
let success := staticcall(sub(gas(), 2000), 8, mIn, 384, mIn, 0x20)
|
|
|
|
isOk := and(success, mload(mIn))
|
|
}
|
|
|
|
let pMem := mload(0x40)
|
|
mstore(0x40, add(pMem, lastMem))
|
|
|
|
checkInput(proof)
|
|
calculateChallanges(proof, pMem)
|
|
calculateLagrange(pMem)
|
|
calculatePl(pMem, pubSignals)
|
|
calculateT(proof, pMem)
|
|
calculateA1(proof, pMem)
|
|
calculateB1(proof, pMem)
|
|
let isValid := checkPairing(pMem)
|
|
|
|
mstore(0x40, sub(pMem, lastMem))
|
|
mstore(0, isValid)
|
|
return(0,0x20)
|
|
}
|
|
|
|
}
|
|
}
|