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make functions private

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Mark Spanbroek 2024-01-30 12:19:22 +01:00 committed by markspanbroek
parent b676b245d6
commit d38e0f5954
1 changed files with 12 additions and 12 deletions
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24
contracts/Groth16Verifier.sol
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@ -46,14 +46,14 @@ contract Groth16Verifier {
} }
} }
function negate(G1Point memory point) internal pure returns (G1Point memory) { function _negate(G1Point memory point) private pure returns (G1Point memory) {
return G1Point(point.x, (_P - point.y) % _P); return G1Point(point.x, (_P - point.y) % _P);
} }
function add( function _add(
G1Point memory point1, G1Point memory point1,
G1Point memory point2 G1Point memory point2
) internal view returns (bool success, G1Point memory sum) { ) private view returns (bool success, G1Point memory sum) {
uint[4] memory input; uint[4] memory input;
input[0] = point1.x; input[0] = point1.x;
input[1] = point1.y; input[1] = point1.y;
@ -65,10 +65,10 @@ contract Groth16Verifier {
} }
} }
function multiply( function _multiply(
G1Point memory point, G1Point memory point,
uint scalar uint scalar
) internal view returns (bool success, G1Point memory product) { ) private view returns (bool success, G1Point memory product) {
uint[3] memory input; uint[3] memory input;
input[0] = point.x; input[0] = point.x;
input[1] = point.y; input[1] = point.y;
@ -79,7 +79,7 @@ contract Groth16Verifier {
} }
} }
function checkPairing( function _checkPairing(
G1Point memory a1, G1Point memory a1,
G2Point memory a2, G2Point memory a2,
G1Point memory b1, G1Point memory b1,
@ -88,7 +88,7 @@ contract Groth16Verifier {
G2Point memory c2, G2Point memory c2,
G1Point memory d1, G1Point memory d1,
G2Point memory d2 G2Point memory d2
) internal view returns (bool success, uint outcome) { ) private view returns (bool success, uint outcome) {
uint[24] memory input; // 4 pairs of G1 and G2 points uint[24] memory input; // 4 pairs of G1 and G2 points
uint[1] memory output; uint[1] memory output;
@ -147,22 +147,22 @@ contract Groth16Verifier {
"verifier-gte-snark-scalar-field" "verifier-gte-snark-scalar-field"
); );
G1Point memory product; G1Point memory product;
(success, product) = multiply(_verifyingKey.ic[i + 1], input[i]); (success, product) = _multiply(_verifyingKey.ic[i + 1], input[i]);
if (!success) { if (!success) {
return false; return false;
} }
(success, vkX) = add(vkX, product); (success, vkX) = _add(vkX, product);
if (!success) { if (!success) {
return false; return false;
} }
} }
(success, vkX) = add(vkX, _verifyingKey.ic[0]); (success, vkX) = _add(vkX, _verifyingKey.ic[0]);
if (!success) { if (!success) {
return false; return false;
} }
uint outcome; uint outcome;
(success, outcome) = checkPairing( (success, outcome) = _checkPairing(
negate(proof.a), _negate(proof.a),
proof.b, proof.b,
_verifyingKey.alpha1, _verifyingKey.alpha1,
_verifyingKey.beta2, _verifyingKey.beta2,