// SPDX-License-Identifier: GPL-3.0
/*
    Copyright 2021 0KIMS association.

    This file is generated with [snarkJS](https://github.com/iden3/snarkjs).

    snarkJS is a free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    snarkJS is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
    License for more details.

    You should have received a copy of the GNU General Public License
    along with snarkJS. If not, see <https://www.gnu.org/licenses/>.
*/

pragma solidity >=0.7.0 <0.9.0;

contract Groth16Verifier_AnonEncNullifierKyc {
    // Scalar field size
    uint256 constant r    = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
    // Base field size
    uint256 constant q   = 21888242871839275222246405745257275088696311157297823662689037894645226208583;

    // Verification Key data
    uint256 constant alphax  = 20491192805390485299153009773594534940189261866228447918068658471970481763042;
    uint256 constant alphay  = 9383485363053290200918347156157836566562967994039712273449902621266178545958;
    uint256 constant betax1  = 4252822878758300859123897981450591353533073413197771768651442665752259397132;
    uint256 constant betax2  = 6375614351688725206403948262868962793625744043794305715222011528459656738731;
    uint256 constant betay1  = 21847035105528745403288232691147584728191162732299865338377159692350059136679;
    uint256 constant betay2  = 10505242626370262277552901082094356697409835680220590971873171140371331206856;
    uint256 constant gammax1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634;
    uint256 constant gammax2 = 10857046999023057135944570762232829481370756359578518086990519993285655852781;
    uint256 constant gammay1 = 4082367875863433681332203403145435568316851327593401208105741076214120093531;
    uint256 constant gammay2 = 8495653923123431417604973247489272438418190587263600148770280649306958101930;
    uint256 constant deltax1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634;
    uint256 constant deltax2 = 10857046999023057135944570762232829481370756359578518086990519993285655852781;
    uint256 constant deltay1 = 4082367875863433681332203403145435568316851327593401208105741076214120093531;
    uint256 constant deltay2 = 8495653923123431417604973247489272438418190587263600148770280649306958101930;

    
    uint256 constant IC0x = 1413853962861001569358305612548684789177651871594965589761252342895612221794;
    uint256 constant IC0y = 15224564710569128326473413068659857504582960089989280426570137804062186528652;
    
    uint256 constant IC1x = 2872723816577508709624328704197591200727607541758628878954128471105893037536;
    uint256 constant IC1y = 5456330743498094593133844908661705509461831972346097901139218028858353007944;
    
    uint256 constant IC2x = 11976645042660157778245600444666201881259598139969532082607597201248624893723;
    uint256 constant IC2y = 5550995410876922716148473852175797786273975811686365647727105917433860011686;
    
    uint256 constant IC3x = 21632064216268308772608847035071233361530471189339165054883984973984793197357;
    uint256 constant IC3y = 17462608659782075911688767715619683212310424904968446440153231973702057463339;
    
    uint256 constant IC4x = 19096796998504450466812112404518968523908474709519687141317167317992641618245;
    uint256 constant IC4y = 18926903502476219600784340400063325209155800740924339849895308657533853249482;
    
    uint256 constant IC5x = 10884053302401933792716404226193544468262547862622816890357412988997445576476;
    uint256 constant IC5y = 19607672738978149038944226212184284509947617578053085314389210236673180321584;
    
    uint256 constant IC6x = 18756091312230953743252901076852307680130552720554773696151104865352368562472;
    uint256 constant IC6y = 12902511926829987794220882750418908360066437485500339729661607416121693345966;
    
    uint256 constant IC7x = 17321763059883533307530550563528139272812245333124603446887973653459535929881;
    uint256 constant IC7y = 12151446517680088985469318937798285286889358479014056479823529294703263839674;
    
    uint256 constant IC8x = 7876865731056312181239824927776932899807834073155045758149531514122047026470;
    uint256 constant IC8y = 19727958552252784828353241448428439511422180671857872524153093347318814800865;
    
    uint256 constant IC9x = 9917086662609452621644078045211102624920459267963950639495728329006864858157;
    uint256 constant IC9y = 16939905902506291291358058305981897630888395253458496241770298547058611772885;
    
    uint256 constant IC10x = 18909135056382812197660417909514271893824654273327458151123027397224056786779;
    uint256 constant IC10y = 11102621345588723325762141758667426598965226444015132997889348790614820467885;
    
    uint256 constant IC11x = 9904533998675821050250228870878062500839738046112142627413972991561649387784;
    uint256 constant IC11y = 1472999390828711720110746479187832259055695312591594515156455948701970839167;
    
    uint256 constant IC12x = 6259981580117243269505978400843201685900073884341263913784480781409531257016;
    uint256 constant IC12y = 17556400727789437691301959719873477688875958672470408542431599994268277697701;
    
    uint256 constant IC13x = 6786150454543824681185379885488409422358344023379931929254945828912517427257;
    uint256 constant IC13y = 1461307302213617129025058553488759827142505916845079526007426509438572108529;
    
    uint256 constant IC14x = 18548160247798364319220035665282406269803300954541170041430304804683033785051;
    uint256 constant IC14y = 9755198421636029968350019001957456386103308719599303665032093558427283180600;
    
    uint256 constant IC15x = 1518206586970420517477151464101006353315752811845263733302611013600411502158;
    uint256 constant IC15y = 3751141164530472434270316848184190720887831510108717881293011856437265093706;
    
    uint256 constant IC16x = 14141410449344663648896620837425930560093061920476445455145116319568877990307;
    uint256 constant IC16y = 21362576089049937855001902873781985399258826264127713239968957647242767818391;
    
    uint256 constant IC17x = 20261948216034307185865350693399474848083720679809810166058642970987354907864;
    uint256 constant IC17y = 11269953331712894119137124918207740684260362654532667611699297664219336782776;
    
    uint256 constant IC18x = 10203999916396463367270368359575974708015544129948471630676981517737357310011;
    uint256 constant IC18y = 13377549460491605159843070390893172806946016983291100814680828534398871836384;
    
    uint256 constant IC19x = 19119291374078250310453268556150662770119321418058910055456275551901831221665;
    uint256 constant IC19y = 18656265189293580010301267675792624799018138439042917808961597814449002263521;
    
 
    // Memory data
    uint16 constant pVk = 0;
    uint16 constant pPairing = 128;

    uint16 constant pLastMem = 896;

    function verifyProof(uint[2] calldata _pA, uint[2][2] calldata _pB, uint[2] calldata _pC, uint[19] calldata _pubSignals) public view returns (bool) {
        assembly {
            function checkField(v) {
                if iszero(lt(v, r)) {
                    mstore(0, 0)
                    return(0, 0x20)
                }
            }
            
            // G1 function to multiply a G1 value(x,y) to value in an address
            function g1_mulAccC(pR, x, y, s) {
                let success
                let mIn := mload(0x40)
                mstore(mIn, x)
                mstore(add(mIn, 32), y)
                mstore(add(mIn, 64), s)

                success := staticcall(sub(gas(), 2000), 7, mIn, 96, mIn, 64)

                if iszero(success) {
                    mstore(0, 0)
                    return(0, 0x20)
                }

                mstore(add(mIn, 64), mload(pR))
                mstore(add(mIn, 96), mload(add(pR, 32)))

                success := staticcall(sub(gas(), 2000), 6, mIn, 128, pR, 64)

                if iszero(success) {
                    mstore(0, 0)
                    return(0, 0x20)
                }
            }

            function checkPairing(pA, pB, pC, pubSignals, pMem) -> isOk {
                let _pPairing := add(pMem, pPairing)
                let _pVk := add(pMem, pVk)

                mstore(_pVk, IC0x)
                mstore(add(_pVk, 32), IC0y)

                // Compute the linear combination vk_x
                
                g1_mulAccC(_pVk, IC1x, IC1y, calldataload(add(pubSignals, 0)))
                
                g1_mulAccC(_pVk, IC2x, IC2y, calldataload(add(pubSignals, 32)))
                
                g1_mulAccC(_pVk, IC3x, IC3y, calldataload(add(pubSignals, 64)))
                
                g1_mulAccC(_pVk, IC4x, IC4y, calldataload(add(pubSignals, 96)))
                
                g1_mulAccC(_pVk, IC5x, IC5y, calldataload(add(pubSignals, 128)))
                
                g1_mulAccC(_pVk, IC6x, IC6y, calldataload(add(pubSignals, 160)))
                
                g1_mulAccC(_pVk, IC7x, IC7y, calldataload(add(pubSignals, 192)))
                
                g1_mulAccC(_pVk, IC8x, IC8y, calldataload(add(pubSignals, 224)))
                
                g1_mulAccC(_pVk, IC9x, IC9y, calldataload(add(pubSignals, 256)))
                
                g1_mulAccC(_pVk, IC10x, IC10y, calldataload(add(pubSignals, 288)))
                
                g1_mulAccC(_pVk, IC11x, IC11y, calldataload(add(pubSignals, 320)))
                
                g1_mulAccC(_pVk, IC12x, IC12y, calldataload(add(pubSignals, 352)))
                
                g1_mulAccC(_pVk, IC13x, IC13y, calldataload(add(pubSignals, 384)))
                
                g1_mulAccC(_pVk, IC14x, IC14y, calldataload(add(pubSignals, 416)))
                
                g1_mulAccC(_pVk, IC15x, IC15y, calldataload(add(pubSignals, 448)))
                
                g1_mulAccC(_pVk, IC16x, IC16y, calldataload(add(pubSignals, 480)))
                
                g1_mulAccC(_pVk, IC17x, IC17y, calldataload(add(pubSignals, 512)))
                
                g1_mulAccC(_pVk, IC18x, IC18y, calldataload(add(pubSignals, 544)))
                
                g1_mulAccC(_pVk, IC19x, IC19y, calldataload(add(pubSignals, 576)))
                

                // -A
                mstore(_pPairing, calldataload(pA))
                mstore(add(_pPairing, 32), mod(sub(q, calldataload(add(pA, 32))), q))

                // B
                mstore(add(_pPairing, 64), calldataload(pB))
                mstore(add(_pPairing, 96), calldataload(add(pB, 32)))
                mstore(add(_pPairing, 128), calldataload(add(pB, 64)))
                mstore(add(_pPairing, 160), calldataload(add(pB, 96)))

                // alpha1
                mstore(add(_pPairing, 192), alphax)
                mstore(add(_pPairing, 224), alphay)

                // beta2
                mstore(add(_pPairing, 256), betax1)
                mstore(add(_pPairing, 288), betax2)
                mstore(add(_pPairing, 320), betay1)
                mstore(add(_pPairing, 352), betay2)

                // vk_x
                mstore(add(_pPairing, 384), mload(add(pMem, pVk)))
                mstore(add(_pPairing, 416), mload(add(pMem, add(pVk, 32))))


                // gamma2
                mstore(add(_pPairing, 448), gammax1)
                mstore(add(_pPairing, 480), gammax2)
                mstore(add(_pPairing, 512), gammay1)
                mstore(add(_pPairing, 544), gammay2)

                // C
                mstore(add(_pPairing, 576), calldataload(pC))
                mstore(add(_pPairing, 608), calldataload(add(pC, 32)))

                // delta2
                mstore(add(_pPairing, 640), deltax1)
                mstore(add(_pPairing, 672), deltax2)
                mstore(add(_pPairing, 704), deltay1)
                mstore(add(_pPairing, 736), deltay2)


                let success := staticcall(sub(gas(), 2000), 8, _pPairing, 768, _pPairing, 0x20)

                isOk := and(success, mload(_pPairing))
            }

            let pMem := mload(0x40)
            mstore(0x40, add(pMem, pLastMem))

            // Validate that all evaluations ∈ F
            
            checkField(calldataload(add(_pubSignals, 0)))
            
            checkField(calldataload(add(_pubSignals, 32)))
            
            checkField(calldataload(add(_pubSignals, 64)))
            
            checkField(calldataload(add(_pubSignals, 96)))
            
            checkField(calldataload(add(_pubSignals, 128)))
            
            checkField(calldataload(add(_pubSignals, 160)))
            
            checkField(calldataload(add(_pubSignals, 192)))
            
            checkField(calldataload(add(_pubSignals, 224)))
            
            checkField(calldataload(add(_pubSignals, 256)))
            
            checkField(calldataload(add(_pubSignals, 288)))
            
            checkField(calldataload(add(_pubSignals, 320)))
            
            checkField(calldataload(add(_pubSignals, 352)))
            
            checkField(calldataload(add(_pubSignals, 384)))
            
            checkField(calldataload(add(_pubSignals, 416)))
            
            checkField(calldataload(add(_pubSignals, 448)))
            
            checkField(calldataload(add(_pubSignals, 480)))
            
            checkField(calldataload(add(_pubSignals, 512)))
            
            checkField(calldataload(add(_pubSignals, 544)))
            
            checkField(calldataload(add(_pubSignals, 576)))
            

            // Validate all evaluations
            let isValid := checkPairing(_pA, _pB, _pC, _pubSignals, pMem)

            mstore(0, isValid)
             return(0, 0x20)
         }
     }
 }