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Force 1 in the verifier

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This commit is contained in:
Jordi Baylina
2018-08-09 18:59:39 +02:00
parent c0312e5d83
commit 6a02f83d41
4 changed files with 5 additions and 111 deletions
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3
src/prover.js
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@@ -25,7 +25,8 @@ module.exports = function genProof(vk_proof, witness) {
proof.pi_h = G1.zero();
for (let s= vk_proof.nPublic; s< vk_proof.nSignals; s++) {
// Skip public entries and the "1" signal that are forced by the verifier
for (let s= vk_proof.nPublic+1; s< vk_proof.nSignals; s++) {
// pi_a = pi_a + A[s] * witness[s];
proof.pi_a = G1.add( proof.pi_a, G1.mulEscalar( vk_proof.A[s], witness[s]));

4
src/verifier.js
View File

@@ -10,12 +10,12 @@ const pairing = require("./pairing");
module.exports = function isValid(vk_verifier, proof, publicSignals) {
let full_pi_a = proof.pi_a;
for (let s= 0; s< vk_verifier.nPublic; s++) {
full_pi_a = G1.add( full_pi_a, G1.mulEscalar( vk_verifier.A[s], publicSignals[s]));
}
let full_pi_a = G1.add(proof.pi_a, vk_verifier.A[vk_verifier.nPublic]);
if (! Gt.equal(
pairing( proof.pi_a , vk_verifier.vk_a ),
pairing( proof.pi_ap , G2.g )))