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change toSolidityInput to return single byte buffer for proof vars, remove fromSolidityInput

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This commit is contained in:
poma 2019-11-08 01:06:46 +03:00
parent 966eafc47d
commit c254b59622
1 changed files with 15 additions and 21 deletions
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30
src/utils.js
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@ -65,32 +65,26 @@ function convertWitness(witness) {
return buff; return buff;
} }
function toHex32(number) {
let str = number.toString(16);
while (str.length < 64) str = "0" + str;
return str;
}
function toSolidityInput(proof) { function toSolidityInput(proof) {
const result = { const flatProof = unstringifyBigInts([
proof: [
proof.pi_a[0], proof.pi_a[1], proof.pi_a[0], proof.pi_a[1],
proof.pi_b[0][1], proof.pi_b[0][0], proof.pi_b[0][1], proof.pi_b[0][0],
proof.pi_b[1][1], proof.pi_b[1][0], proof.pi_b[1][1], proof.pi_b[1][0],
proof.pi_c[0], proof.pi_c[1], proof.pi_c[0], proof.pi_c[1],
] ]);
};
if (proof.publicSignals) {
result.publicSignals = proof.publicSignals;
}
return hexifyBigInts(unstringifyBigInts(result));
}
function fromSolidityInput(proof) {
proof = unhexifyBigInts(proof);
const result = { const result = {
pi_a: [proof.proof[0], proof.proof[1], bigInt(1)], proof: "0x" + flatProof.map(x => toHex32(x)).join("")
pi_b: [[proof.proof[3], proof.proof[2]], [proof.proof[5], proof.proof[4]], [bigInt(1), bigInt(0)]],
pi_c: [proof.proof[6], proof.proof[7], bigInt(1)]
}; };
if (proof.publicSignals) { if (proof.publicSignals) {
result.publicSignals = proof.publicSignals; result.publicSignals = hexifyBigInts(unstringifyBigInts(proof.publicSignals));
} }
return stringifyBigInts(proof); return result;
} }
function genWitness(input, circuitJson) { function genWitness(input, circuitJson) {
@ -108,4 +102,4 @@ async function genWitnessAndProve(groth16, input, circuitJson, provingKey) {
return result; return result;
} }
module.exports = {bigInt2BytesLE, bigInt2U32LE, toSolidityInput, fromSolidityInput, genWitnessAndProve}; module.exports = {bigInt2BytesLE, bigInt2U32LE, toSolidityInput, genWitnessAndProve};