tornado-packages/snarkjs
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split zkne infunctions and log Hs

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Jordi Baylina 2020-10-12 12:18:45 +02:00
parent 4e03641027
commit ec9fbfe713
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GPG Key ID: 7480C80C1BE43112
5 changed files with 1970 additions and 3070 deletions
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96
build/cli.cjs
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@ -4016,6 +4016,56 @@ async function newZKey(r1csName, ptauName, zkeyName, logger) {
const C = new BigArray$1(r1cs.nVars- nPublic -1);
const IC = new Array(nPublic+1);
await processConstraints();
await composeAndWritePoints(3, "G1", IC, "IC");
await writeHs();
await hashHPoints();
await composeAndWritePoints(8, "G1", C, "C");
await composeAndWritePoints(5, "G1", A, "A");
await composeAndWritePoints(6, "G1", B1, "B1");
await composeAndWritePoints(7, "G2", B2, "B2");
const csHash = csHasher.digest();
// Contributions section
await startWriteSection(fdZKey, 10);
await fdZKey.write(csHash);
await fdZKey.writeULE32(0);
await endWriteSection(fdZKey);
if (logger) logger.info(formatHash(csHash, "Circuit hash: "));
await fdZKey.close();
await fdPTau.close();
await fdR1cs.close();
return csHash;
async function writeHs() {
await startWriteSection(fdZKey, 9);
const buffOut = new ffjavascript.BigBuffer(domainSize*sG1);
if (cirPower < curve.Fr.s) {
let sTauG1 = await readSection(fdPTau, sectionsPTau, 12, (domainSize*2-1)*sG1, domainSize*2*sG1);
for (let i=0; i< domainSize; i++) {
if ((logger)&&(i%10000 == 0)) logger.debug(`spliting buffer: ${i}/${domainSize}`);
const buff = sTauG1.slice( (i*2+1)*sG1, (i*2+1)*sG1 + sG1 );
buffOut.set(buff, i*sG1);
}
} else if (cirPower == curve.Fr.s) {
const o = sectionsPTau[12][0].p + ((2 ** (cirPower+1)) -1)*sG1;
await fdPTau.readToBuffer(buffOut, 0, domainSize*sG1, o + domainSize*sG1);
} else {
if (logger) logger.error("Circuit too big");
throw new Error("Circuit too big for this curve");
}
await fdZKey.write(buffOut);
await endWriteSection(fdZKey);
}
async function processConstraints() {
const buffCoeff = new Uint8Array(12 + curve.Fr.n8);
const buffCoeffV = new DataView(buffCoeff.buffer);
@ -4128,50 +4178,6 @@ async function newZKey(r1csName, ptauName, zkeyName, logger) {
await endWriteSection(fdZKey);
await composeAndWritePoints(3, "G1", IC, "IC");
// Write Hs
await startWriteSection(fdZKey, 9);
const buffOut = new ffjavascript.BigBuffer(domainSize*sG1);
if (cirPower < curve.Fr.s) {
let sTauG1 = await readSection(fdPTau, sectionsPTau, 12, (domainSize*2-1)*sG1, domainSize*2*sG1);
for (let i=0; i< domainSize; i++) {
const buff = sTauG1.slice( (i*2+1)*sG1, (i*2+1)*sG1 + sG1 );
buffOut.set(buff, i*sG1);
}
} else if (cirPower == curve.Fr.s) {
const o = sectionsPTau[12][0].p + ((2 ** (cirPower+1)) -1)*sG1;
await fdPTau.readToBuffer(buffOut, 0, domainSize*sG1, o + domainSize*sG1);
} else {
if (logger) logger.error("Circuit too big");
throw new Error("Circuit too big for this curve");
}
await fdZKey.write(buffOut);
await endWriteSection(fdZKey);
await hashHPoints();
await composeAndWritePoints(8, "G1", C, "C");
await composeAndWritePoints(5, "G1", A, "A");
await composeAndWritePoints(6, "G1", B1, "B1");
await composeAndWritePoints(7, "G2", B2, "B2");
const csHash = csHasher.digest();
// Contributions section
await startWriteSection(fdZKey, 10);
await fdZKey.write(csHash);
await fdZKey.writeULE32(0);
await endWriteSection(fdZKey);
if (logger) logger.info(formatHash(csHash, "Circuit hash: "));
await fdZKey.close();
await fdPTau.close();
await fdR1cs.close();
return csHash;
async function writeCoef(a, c, s, coef) {
const n = curve.Fr.fromRprLE(coef, 0);
@ -4183,6 +4189,8 @@ async function newZKey(r1csName, ptauName, zkeyName, logger) {
await fdZKey.write(buffCoeff);
}
}
async function composeAndWritePoints(idSection, groupName, arr, sectionName) {
const CHUNK_SIZE= 1<<13;
const G = curve[groupName];

3984
build/main.cjs
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98
build/snarkjs.js
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2
build/snarkjs.min.js vendored
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98
src/zkey_new.js
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@ -8,8 +8,6 @@ import {
writeBigInt,
startWriteSection,
endWriteSection,
startReadUniqueSection,
endReadSection
} from "@iden3/binfileutils";
import { log2, formatHash } from "./misc.js";
import { Scalar, BigBuffer } from "ffjavascript";
@ -120,6 +118,56 @@ export default async function newZKey(r1csName, ptauName, zkeyName, logger) {
const C = new BigArray(r1cs.nVars- nPublic -1);
const IC = new Array(nPublic+1);
await processConstraints();
await composeAndWritePoints(3, "G1", IC, "IC");
await writeHs();
await hashHPoints();
await composeAndWritePoints(8, "G1", C, "C");
await composeAndWritePoints(5, "G1", A, "A");
await composeAndWritePoints(6, "G1", B1, "B1");
await composeAndWritePoints(7, "G2", B2, "B2");
const csHash = csHasher.digest();
// Contributions section
await startWriteSection(fdZKey, 10);
await fdZKey.write(csHash);
await fdZKey.writeULE32(0);
await endWriteSection(fdZKey);
if (logger) logger.info(formatHash(csHash, "Circuit hash: "));
await fdZKey.close();
await fdPTau.close();
await fdR1cs.close();
return csHash;
async function writeHs() {
await startWriteSection(fdZKey, 9);
const buffOut = new BigBuffer(domainSize*sG1);
if (cirPower < curve.Fr.s) {
let sTauG1 = await readSection(fdPTau, sectionsPTau, 12, (domainSize*2-1)*sG1, domainSize*2*sG1);
for (let i=0; i< domainSize; i++) {
if ((logger)&&(i%10000 == 0)) logger.debug(`spliting buffer: ${i}/${domainSize}`);
const buff = sTauG1.slice( (i*2+1)*sG1, (i*2+1)*sG1 + sG1 );
buffOut.set(buff, i*sG1);
}
} else if (cirPower == curve.Fr.s) {
const o = sectionsPTau[12][0].p + ((2 ** (cirPower+1)) -1)*sG1;
await fdPTau.readToBuffer(buffOut, 0, domainSize*sG1, o + domainSize*sG1);
} else {
if (logger) logger.error("Circuit too big");
throw new Error("Circuit too big for this curve");
}
await fdZKey.write(buffOut);
await endWriteSection(fdZKey);
}
async function processConstraints() {
const buffCoeff = new Uint8Array(12 + curve.Fr.n8);
const buffCoeffV = new DataView(buffCoeff.buffer);
@ -232,50 +280,6 @@ export default async function newZKey(r1csName, ptauName, zkeyName, logger) {
await endWriteSection(fdZKey);
await composeAndWritePoints(3, "G1", IC, "IC");
// Write Hs
await startWriteSection(fdZKey, 9);
const buffOut = new BigBuffer(domainSize*sG1);
if (cirPower < curve.Fr.s) {
let sTauG1 = await readSection(fdPTau, sectionsPTau, 12, (domainSize*2-1)*sG1, domainSize*2*sG1);
for (let i=0; i< domainSize; i++) {
const buff = sTauG1.slice( (i*2+1)*sG1, (i*2+1)*sG1 + sG1 );
buffOut.set(buff, i*sG1);
}
} else if (cirPower == curve.Fr.s) {
const o = sectionsPTau[12][0].p + ((2 ** (cirPower+1)) -1)*sG1;
await fdPTau.readToBuffer(buffOut, 0, domainSize*sG1, o + domainSize*sG1);
} else {
if (logger) logger.error("Circuit too big");
throw new Error("Circuit too big for this curve");
}
await fdZKey.write(buffOut);
await endWriteSection(fdZKey);
await hashHPoints();
await composeAndWritePoints(8, "G1", C, "C");
await composeAndWritePoints(5, "G1", A, "A");
await composeAndWritePoints(6, "G1", B1, "B1");
await composeAndWritePoints(7, "G2", B2, "B2");
const csHash = csHasher.digest();
// Contributions section
await startWriteSection(fdZKey, 10);
await fdZKey.write(csHash);
await fdZKey.writeULE32(0);
await endWriteSection(fdZKey);
if (logger) logger.info(formatHash(csHash, "Circuit hash: "));
await fdZKey.close();
await fdPTau.close();
await fdR1cs.close();
return csHash;
async function writeCoef(a, c, s, coef) {
const n = curve.Fr.fromRprLE(coef, 0);
@ -287,6 +291,8 @@ export default async function newZKey(r1csName, ptauName, zkeyName, logger) {
await fdZKey.write(buffCoeff);
}
}
async function composeAndWritePoints(idSection, groupName, arr, sectionName) {
const CHUNK_SIZE= 1<<13;
const G = curve[groupName];