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• [DIR] ..
• [FILE] ed25519-hd-key.d.ts
• [FILE] ed25519-hd-key.js
• [FILE] ed25519-hd-key.js.map
• [FILE] index.d.ts
• [FILE] index.js
• [FILE] index.js.map
• [FILE] keypair.d.ts
• [FILE] keypair.js
• [FILE] keypair.js.map
• [FILE] publickey.d.ts
• [FILE] publickey.js
• [FILE] publickey.js.map

Просмотр файла: ed25519-hd-key.js

"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var ed25519_hd_key_exports = {};
__export(ed25519_hd_key_exports, {
  derivePath: () => derivePath,
  getMasterKeyFromSeed: () => getMasterKeyFromSeed,
  getPublicKey: () => getPublicKey,
  isValidPath: () => isValidPath,
  pathRegex: () => pathRegex,
  replaceDerive: () => replaceDerive
});
module.exports = __toCommonJS(ed25519_hd_key_exports);
var import_bcs = require("@iota/bcs");
var import_hmac = require("@noble/hashes/hmac");
var import_sha512 = require("@noble/hashes/sha512");
var import_tweetnacl = __toESM(require("tweetnacl"));
const ED25519_CURVE = "ed25519 seed";
const HARDENED_OFFSET = 2147483648;
const pathRegex = new RegExp("^m(\\/[0-9]+')+$");
const replaceDerive = (val) => val.replace("'", "");
const getMasterKeyFromSeed = (seed) => {
  const h = import_hmac.hmac.create(import_sha512.sha512, ED25519_CURVE);
  const I = h.update((0, import_bcs.fromHex)(seed)).digest();
  const IL = I.slice(0, 32);
  const IR = I.slice(32);
  return {
    key: IL,
    chainCode: IR
  };
};
const CKDPriv = ({ key, chainCode }, index) => {
  const indexBuffer = new ArrayBuffer(4);
  const cv = new DataView(indexBuffer);
  cv.setUint32(0, index);
  const data = new Uint8Array(1 + key.length + indexBuffer.byteLength);
  data.set(new Uint8Array(1).fill(0));
  data.set(key, 1);
  data.set(new Uint8Array(indexBuffer, 0, indexBuffer.byteLength), key.length + 1);
  const I = import_hmac.hmac.create(import_sha512.sha512, chainCode).update(data).digest();
  const IL = I.slice(0, 32);
  const IR = I.slice(32);
  return {
    key: IL,
    chainCode: IR
  };
};
const getPublicKey = (privateKey, withZeroByte = true) => {
  const keyPair = import_tweetnacl.default.sign.keyPair.fromSeed(privateKey);
  const signPk = keyPair.secretKey.subarray(32);
  const newArr = new Uint8Array(signPk.length + 1);
  newArr.set([0]);
  newArr.set(signPk, 1);
  return withZeroByte ? newArr : signPk;
};
const isValidPath = (path) => {
  if (!pathRegex.test(path)) {
    return false;
  }
  return !path.split("/").slice(1).map(replaceDerive).some(
    isNaN
    /* ts T_T*/
  );
};
const derivePath = (path, seed, offset = HARDENED_OFFSET) => {
  if (!isValidPath(path)) {
    throw new Error("Invalid derivation path");
  }
  const { key, chainCode } = getMasterKeyFromSeed(seed);
  const segments = path.split("/").slice(1).map(replaceDerive).map((el) => parseInt(el, 10));
  return segments.reduce((parentKeys, segment) => CKDPriv(parentKeys, segment + offset), {
    key,
    chainCode
  });
};
//# sourceMappingURL=ed25519-hd-key.js.map

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