export-ton-verifier/dist/chunk-I7S4EEHA.js

Tool for generating Groth16 and PLONK verifier code for the TON blockchain from SnarkJS .zkey or verification key JSON files.

// src/utils.js
import { buildBn128, buildBls12381 } from "ffjavascript";
async function getCurveFromName(name, options) {
  let curve;
  let singleThread = options && options.singleThread;
  const normName = normalizeName(name);
  if (["BN128", "BN254", "ALTBN128"].indexOf(normName) >= 0) {
    curve = await buildBn128(singleThread);
  } else if (["BLS12381"].indexOf(normName) >= 0) {
    curve = await buildBls12381(singleThread);
  } else {
    throw new Error(`Curve not supported: ${name}`);
  }
  return curve;
  function normalizeName(n) {
    return n.toUpperCase().match(/[A-Za-z0-9]+/g).join("");
  }
}
function toHexString(byteArray) {
  return Array.from(
    byteArray,
    (byte) => ("0" + (byte & 255).toString(16)).slice(-2)
  ).join("");
}
function assertBls12381Curve(curve) {
  const normalizedName = String((curve == null ? void 0 : curve.name) ?? "").toLowerCase().replace(/[^a-z0-9]/g, "");
  if (normalizedName !== "bls12381") {
    throw new Error("Compression helpers support only BLS12-381 curves.");
  }
}
function g1Compressed(curve, p1Raw) {
  assertBls12381Curve(curve);
  const p1 = curve.G1.fromObject(p1Raw);
  const buff = new Uint8Array(48);
  curve.G1.toRprCompressed(buff, 0, p1);
  if (buff[0] & 128) buff[0] |= 32;
  buff[0] |= 128;
  return toHexString(buff);
}
function g2Compressed(curve, p2Raw) {
  assertBls12381Curve(curve);
  const p2 = curve.G2.fromObject(p2Raw);
  const buff = new Uint8Array(96);
  curve.G2.toRprCompressed(buff, 0, p2);
  if (buff[0] & 128) buff[0] |= 32;
  buff[0] |= 128;
  return toHexString(buff);
}

export {
  getCurveFromName,
  g1Compressed,
  g2Compressed
};