Qurrency implementation

solidity/contracts/test/qurrency.sol

@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.27;
+
+import {Groth16Verifier_AnonNullifierQurrencyTransfer} from "../verifiers/verifier_anon_nullifier_qurrency_transfer.sol";
+import {Commonlib} from "../lib/common.sol";
+
+contract TestVerifierQurrency {
+    Groth16Verifier_AnonNullifierQurrencyTransfer verifier;
+
+    bool public lastSuccess = false;
+
+    constructor() {
+        verifier = new Groth16Verifier_AnonNullifierQurrencyTransfer();
+    }
+
+    function verifyProof(
+        Commonlib.Proof memory proof,
+        uint256[9] memory publicInputs
+    ) public returns (bool) {
+        bool result = verifier.verifyProof(
+            proof.pA,
+            proof.pB,
+            proof.pC,
+            publicInputs
+        );
+        lastSuccess = result;
+        require(result, "Verification failed");
+        return result;
+    }
+}

solidity/contracts/verifiers/verifier_anon_nullifier_qurrency_transfer.sol

@@ -0,0 +1,224 @@
+// 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_AnonNullifierQurrencyTransfer {
+    // 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 = 5903941879013718988081172462893635473765585811323635470514735721095700963702;
+    uint256 constant IC0y = 21080368968148086049976470300075598267152959623874995939107123143909817947630;
+
+    uint256 constant IC1x = 277297534438112389180931574864286821885419665717177767601706304294709064040;
+    uint256 constant IC1y = 11466710444362729136960387929371222359273358701587036714483949566745055621830;
+
+    uint256 constant IC2x = 5619666232197961834865995108107159282382923386466834757057363204096037651764;
+    uint256 constant IC2y = 15973294500823479376020315199547194992254305102551062619795669271634881254131;
+
+    uint256 constant IC3x = 16994365193196666529444222678662986964837189489839761617081637536084667700567;
+    uint256 constant IC3y = 19320170842519457147495348046335776444028148306160216329435959930056589238336;
+
+    uint256 constant IC4x = 8498610473957547996900321269894382432325081969475947517083968711252676854434;
+    uint256 constant IC4y = 12728107717434555757183263731054279132059277069143869361510124517810824142633;
+
+    uint256 constant IC5x = 18511559663930149009135574067307212897873211022818368060918697035060259565029;
+    uint256 constant IC5y = 20804557254714858706397640997162389384167991925053762942540110532256230134678;
+
+    uint256 constant IC6x = 9373814069952600731332993487809060613417950312335152043923307393139824873734;
+    uint256 constant IC6y = 16865467207038098604194455172286157376570508997936659278795086623618594346915;
+
+    uint256 constant IC7x = 12145839442248256913972414977521448580312614560974030542947427181163264459741;
+    uint256 constant IC7y = 18090427452121523061184380667980763703935420996985767299962855565988460373436;
+
+    uint256 constant IC8x = 10474776404215989914860932066594458738983457343662916641445752614561642689469;
+    uint256 constant IC8y = 3378834796931378107199253750169106725596319638791117099719497080177733386540;
+
+    uint256 constant IC9x = 1887249157430528165374401635262372006182704854335611145585690423537839735888;
+    uint256 constant IC9y = 7080674530581255597858145142316212286106173969722576181725459826182095923364;
+
+
+    // 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[9] 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)))
+
+
+                // -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)))
+
+
+            // Validate all evaluations
+            let isValid := checkPairing(_pA, _pB, _pC, _pubSignals, pMem)
+
+            mstore(0, isValid)
+             return(0, 0x20)
+         }
+     }
+ }