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Текущая директория: /opt/BitGoJS/node_modules/@hashgraph/cryptography/lib/primitive

Просмотр файла: ecdsa.cjs

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.fromBytes = fromBytes;
exports.generate = generate;
exports.generateAsync = generateAsync;
exports.sign = sign;
exports.verify = verify;

var _keccak = require("./keccak.cjs");

var hex = _interopRequireWildcard(require("../encoding/hex.cjs"));

var _elliptic = _interopRequireDefault(require("elliptic"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

const secp256k1 = new _elliptic.default.ec("secp256k1");
/**
 * @typedef {import("../EcdsaPrivateKey.js").KeyPair} KeyPair
 */

/**
 * @returns {KeyPair}
 */

function generate() {
  const keypair = secp256k1.genKeyPair();
  return {
    privateKey: hex.decode(keypair.getPrivate("hex")),
    publicKey: hex.decode(keypair.getPublic(true, "hex"))
  };
}
/**
 * @returns {Promise<KeyPair>}
 */
// eslint-disable-next-line @typescript-eslint/no-unused-vars


async function generateAsync() {
  return Promise.resolve(generate());
}
/**
 * @param {Uint8Array} data
 * @returns {KeyPair}
 */
// eslint-disable-next-line @typescript-eslint/no-unused-vars


function fromBytes(data) {
  const keypair = secp256k1.keyFromPrivate(data);
  return {
    privateKey: hex.decode(keypair.getPrivate("hex")),
    publicKey: hex.decode(keypair.getPublic(true, "hex"))
  };
}
/**
 * @param {Uint8Array} keydata
 * @param {Uint8Array} message
 * @returns {Uint8Array}
 */
// eslint-disable-next-line @typescript-eslint/no-unused-vars


function sign(keydata, message) {
  const msg = hex.encode(message);
  const data = hex.decode((0, _keccak.keccak256)(`0x${msg}`));
  const keypair = secp256k1.keyFromPrivate(keydata);
  const signature = keypair.sign(data);
  const r = signature.r.toArray("be", 32);
  const s = signature.s.toArray("be", 32);
  const result = new Uint8Array(64);
  result.set(r, 0);
  result.set(s, 32);
  return result;
}
/**
 * @param {Uint8Array} keydata
 * @param {Uint8Array} message
 * @param {Uint8Array} signature
 * @returns {boolean}
 */
// eslint-disable-next-line @typescript-eslint/no-unused-vars


function verify(keydata, message, signature) {
  const msg = hex.encode(message);
  const data = hex.decode((0, _keccak.keccak256)(`0x${msg}`));
  const keypair = secp256k1.keyFromPublic(keydata);
  return keypair.verify(data, {
    r: signature.subarray(0, 32),
    s: signature.subarray(32, 64)
  });
}

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