status-im/codex-contracts-eth
2
0
Fork 0
mirror of https://github.com/status-im/codex-contracts-eth.git synced 2025-02-12 08:26:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

Reordering, formatting

Browse Source
This commit is contained in:
Mark Spanbroek 2024-01-30 12:14:34 +01:00 committed by markspanbroek
parent c7687c5b83
commit a4777bade5
1 changed files with 32 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
contracts/Groth16Verifier.sol
View File

@ -24,6 +24,28 @@ contract Groth16Verifier {
// The prime q in the base field F_q for G1 // The prime q in the base field F_q for G1
uint private constant _Q = uint private constant _Q =
21888242871839275222246405745257275088696311157297823662689037894645226208583; 21888242871839275222246405745257275088696311157297823662689037894645226208583;
uint256 private constant _SNARK_SCALAR_FIELD =
21888242871839275222246405745257275088548364400416034343698204186575808495617;
VerifyingKey private _verifyingKey;
struct VerifyingKey {
G1Point alpha1;
G2Point beta2;
G2Point gamma2;
G2Point delta2;
G1Point[] ic;
}
constructor(VerifyingKey memory key) {
_verifyingKey.alpha1 = key.alpha1;
_verifyingKey.beta2 = key.beta2;
_verifyingKey.gamma2 = key.gamma2;
_verifyingKey.delta2 = key.delta2;
for (uint i = 0; i < key.ic.length; i++) {
_verifyingKey.ic.push(key.ic[i]);
}
}
/// The negation of p, i.e. p.addition(p.negate()) should be zero. /// The negation of p, i.e. p.addition(p.negate()) should be zero.
function negate(G1Point memory p) internal pure returns (G1Point memory) { function negate(G1Point memory p) internal pure returns (G1Point memory) {
@ -117,27 +139,6 @@ contract Groth16Verifier {
return (success, output[0]); return (success, output[0]);
} }
uint256 private constant _SNARK_SCALAR_FIELD =
21888242871839275222246405745257275088548364400416034343698204186575808495617;
VerifyingKey private _verifyingKey;
struct VerifyingKey {
G1Point alpha1;
G2Point beta2;
G2Point gamma2;
G2Point delta2;
G1Point[] ic;
}
constructor(VerifyingKey memory key) {
_verifyingKey.alpha1 = key.alpha1;
_verifyingKey.beta2 = key.beta2;
_verifyingKey.gamma2 = key.gamma2;
_verifyingKey.delta2 = key.delta2;
for (uint i = 0; i < key.ic.length; i++) {
_verifyingKey.ic.push(key.ic[i]);
}
}
function verify( function verify(
Groth16Proof calldata proof, Groth16Proof calldata proof,
uint[] memory input uint[] memory input
@ -165,17 +166,16 @@ contract Groth16Verifier {
return false; return false;
} }
uint outcome; uint outcome;
(success, outcome) = (success, outcome) = checkPairing(
checkPairing( negate(proof.a),
negate(proof.a), proof.b,
proof.b, _verifyingKey.alpha1,
_verifyingKey.alpha1, _verifyingKey.beta2,
_verifyingKey.beta2, vkX,
vkX, _verifyingKey.gamma2,
_verifyingKey.gamma2, proof.c,
proof.c, _verifyingKey.delta2
_verifyingKey.delta2 );
);
if (!success) { if (!success) {
return false; return false;
} }