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

Просмотр файла: PrivateKey.cjs

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _BadKeyError = _interopRequireDefault(require("./BadKeyError.cjs"));
var _Key = _interopRequireDefault(require("./Key.cjs"));
var _Ed25519PrivateKey = _interopRequireDefault(require("./Ed25519PrivateKey.cjs"));
var _EcdsaPrivateKey = _interopRequireDefault(require("./EcdsaPrivateKey.cjs"));
var _PublicKey = _interopRequireDefault(require("./PublicKey.cjs"));
var _keystore = require("./primitive/keystore.cjs");
var _pem = require("./encoding/pem.cjs");
var hex = _interopRequireWildcard(require("./encoding/hex.cjs"));
var slip10 = _interopRequireWildcard(require("./primitive/slip10.cjs"));
var bip32 = _interopRequireWildcard(require("./primitive/bip32.cjs"));
var derive = _interopRequireWildcard(require("./util/derive.cjs"));
var ecdsa = _interopRequireWildcard(require("./primitive/ecdsa.cjs"));
var _Cache = _interopRequireDefault(require("./Cache.cjs"));
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; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
 * @typedef {object} ProtoSignaturePair
 * @property {(Uint8Array | null)=} pubKeyPrefix
 * @property {(Uint8Array | null)=} ed25519
 * @property {(Uint8Array | null)=} ECDSASecp256k1
 */

/**
 * @typedef {object} ProtoSigMap
 * @property {(ProtoSignaturePair[] | null)=} sigPair
 */

/**
 * @typedef {object} ProtoSignedTransaction
 * @property {(Uint8Array | null)=} bodyBytes
 * @property {(ProtoSigMap | null)=} sigMap
 */

/**
 * @typedef {object} Transaction
 * @property {() => boolean} isFrozen
 * @property {ProtoSignedTransaction[]} _signedTransactions
 * @property {Set<string>} _signerPublicKeys
 * @property {(publicKey: PublicKey, signature: Uint8Array) => Transaction} addSignature
 * @property {() => void} _requireFrozen
 * @property {() => Transaction} freeze
 */

/**
 * @typedef {import("./Mnemonic.js").default} Mnemonic
 */

/**
 * A private key on the Hedera™ network.
 */
class PrivateKey extends _Key.default {
  /**
   * @hideconstructor
   * @internal
   * @param {Ed25519PrivateKey | EcdsaPrivateKey} key
   */
  constructor(key) {
    super();

    /**
     * @type {Ed25519PrivateKey | EcdsaPrivateKey}
     * @readonly
     * @private
     */
    this._key = key;
  }

  /**
   * @returns {string}
   */
  get _type() {
    return this._key._type;
  }

  /**
   * @returns {Uint8Array | null}
   */
  get _chainCode() {
    return this._key._chainCode;
  }

  /**
   * Generate a random Ed25519 private key.
   *
   * @returns {PrivateKey}
   */
  static generateED25519() {
    return new PrivateKey(_Ed25519PrivateKey.default.generate());
  }

  /**
   * Generate a random EDSA private key.
   *
   * @returns {PrivateKey}
   */
  static generateECDSA() {
    return new PrivateKey(_EcdsaPrivateKey.default.generate());
  }

  /**
   * Depredated - Use `generateED25519()` instead
   * Generate a random Ed25519 private key.
   *
   * @returns {PrivateKey}
   */
  static generate() {
    return PrivateKey.generateED25519();
  }

  /**
   * Depredated - Use `generateED25519Async()` instead
   * Generate a random Ed25519 private key.
   *
   * @returns {Promise<PrivateKey>}
   */
  static async generateAsync() {
    return PrivateKey.generateED25519Async();
  }

  /**
   * Generate a random Ed25519 private key.
   *
   * @returns {Promise<PrivateKey>}
   */
  static async generateED25519Async() {
    return new PrivateKey(await _Ed25519PrivateKey.default.generateAsync());
  }

  /**
   * Generate a random ECDSA private key.
   *
   * @returns {Promise<PrivateKey>}
   */
  static async generateECDSAAsync() {
    return new PrivateKey(await _EcdsaPrivateKey.default.generateAsync());
  }

  /**
   * Construct a private key from bytes. Requires DER header.
   *
   * @param {Uint8Array} data
   * @returns {PrivateKey}
   */
  static fromBytes(data) {
    try {
      return new PrivateKey(_Ed25519PrivateKey.default.fromBytes(data));
    } catch {
      // Do nothing
    }
    try {
      return new PrivateKey(_EcdsaPrivateKey.default.fromBytes(data));
    } catch {
      // Do nothing
    }
    throw new _BadKeyError.default(`invalid private key length: ${data.length} bytes`);
  }

  /**
   * Construct a ECDSA private key from bytes.
   *
   * @param {Uint8Array} data
   * @returns {PrivateKey}
   */
  static fromBytesECDSA(data) {
    return new PrivateKey(_EcdsaPrivateKey.default.fromBytes(data));
  }

  /**
   * Construct a ED25519 private key from bytes.
   *
   * @param {Uint8Array} data
   * @returns {PrivateKey}
   */
  static fromBytesED25519(data) {
    return new PrivateKey(_Ed25519PrivateKey.default.fromBytes(data));
  }

  /**
   * Construct a private key from a hex-encoded string. Requires DER header.
   *
   * @param {string} text
   * @returns {PrivateKey}
   */
  static fromString(text) {
    return PrivateKey.fromBytes(hex.decode(text));
  }

  /**
   * Construct a ECDSA private key from a hex-encoded string.
   *
   * @param {string} text
   * @returns {PrivateKey}
   */
  static fromStringECDSA(text) {
    return PrivateKey.fromBytesECDSA(hex.decode(text));
  }

  /**
   * Construct a Ed25519 private key from a hex-encoded string.
   *
   * @param {string} text
   * @returns {PrivateKey}
   */
  static fromStringED25519(text) {
    return PrivateKey.fromBytesED25519(hex.decode(text));
  }

  /**
   * Construct a Ed25519 private key from a Uint8Array seed.
   *
   * @param {Uint8Array} seed
   * @returns {Promise<PrivateKey>}
   */
  static async fromSeedED25519(seed) {
    const ed25519Key = await _Ed25519PrivateKey.default.fromSeed(seed);
    return new PrivateKey(ed25519Key);
  }

  /**
   * Construct a ECDSA private key from a Uint8Array seed.
   *
   * @param {Uint8Array} seed
   * @returns {Promise<PrivateKey>}
   */
  static async fromSeedECDSAsecp256k1(seed) {
    const ecdsaKey = await _EcdsaPrivateKey.default.fromSeed(seed);
    return new PrivateKey(ecdsaKey);
  }

  /**
   * @deprecated - Use `Mnemonic.from[Words|String]().toStandard[Ed25519|ECDSAsecp256k1]PrivateKey()` instead
   *
   * Recover a private key from a mnemonic phrase (and optionally a password).
   * @param {Mnemonic | string} mnemonic
   * @param {string} [passphrase]
   * @returns {Promise<PrivateKey>}
   */
  static async fromMnemonic(mnemonic, passphrase = "") {
    if (_Cache.default.mnemonicFromString == null) {
      throw new Error("Mnemonic not found in cache");
    }
    return (typeof mnemonic === "string" ? _Cache.default.mnemonicFromString(mnemonic) : mnemonic

    // eslint-disable-next-line deprecation/deprecation
    ).toEd25519PrivateKey(passphrase);
  }

  /**
   * Recover a private key from a keystore, previously created by `.toKeystore()`.
   *
   * This key will _not_ support child key derivation.
   *
   * @param {Uint8Array} data
   * @param {string} [passphrase]
   * @returns {Promise<PrivateKey>}
   * @throws {BadKeyError} If the passphrase is incorrect or the hash fails to validate.
   */
  static async fromKeystore(data, passphrase = "") {
    return PrivateKey.fromBytes(await (0, _keystore.loadKeystore)(data, passphrase));
  }

  /**
   * Recover a private key from a pem string; the private key may be encrypted.
   *
   * This method assumes the .pem file has been converted to a string already.
   *
   * If `passphrase` is not null or empty, this looks for the first `ENCRYPTED PRIVATE KEY`
   * section and uses `passphrase` to decrypt it; otherwise, it looks for the first `PRIVATE KEY`
   * section and decodes that as a DER-encoded  private key.
   *
   * @param {string} data
   * @param {string} [passphrase]
   * @returns {Promise<PrivateKey>}
   */
  static async fromPem(data, passphrase = "") {
    const pem = await (0, _pem.read)(data, passphrase);
    if (pem instanceof _Ed25519PrivateKey.default || pem instanceof _EcdsaPrivateKey.default) {
      return new PrivateKey(pem);
    }
    return PrivateKey.fromBytes(pem);
  }

  /**
   * Derive a new private key at the given wallet index.
   *
   * Only currently supported for keys created with from mnemonics; other keys will throw
   * an error.
   *
   * You can check if a key supports derivation with `.supportsDerivation()`
   *
   * @param {number} index
   * @returns {Promise<PrivateKey>}
   * @throws If this key does not support derivation.
   */
  async derive(index) {
    if (this._key._chainCode == null) {
      throw new Error("this private key does not support key derivation");
    }
    if (this._key instanceof _Ed25519PrivateKey.default) {
      const {
        keyData,
        chainCode
      } = await slip10.derive(this.toBytesRaw(), this._key._chainCode, index);
      return new PrivateKey(new _Ed25519PrivateKey.default(keyData, chainCode));
    } else {
      const {
        keyData,
        chainCode
      } = await bip32.derive(this.toBytesRaw(), this._key._chainCode, index);
      return new PrivateKey(new _EcdsaPrivateKey.default(ecdsa.fromBytes(keyData), chainCode));
    }
  }

  /**
   * @param {number} index
   * @returns {Promise<PrivateKey>}
   * @throws If this key does not support derivation.
   */
  async legacyDerive(index) {
    const keyBytes = await derive.legacy(this.toBytesRaw().subarray(0, 32), index);

    /** @type {new (bytes: Uint8Array) => Ed25519PrivateKey | EcdsaPrivateKey} */
    const constructor = /** @type {any} */this._key.constructor;

    // eslint-disable-next-line @typescript-eslint/no-unsafe-call
    return new PrivateKey(new constructor(keyBytes));
  }

  /**
   * Get the public key associated with this private key.
   *
   * The public key can be freely given and used by other parties to verify
   * the signatures generated by this private key.
   *
   * @returns {PublicKey}
   */
  get publicKey() {
    return new _PublicKey.default(this._key.publicKey);
  }

  /**
   * Sign a message with this private key.
   *
   * @param {Uint8Array} bytes
   * @returns {Uint8Array} - The signature bytes without the message
   */
  sign(bytes) {
    return this._key.sign(bytes);
  }

  /**
   * @param {Transaction} transaction
   * @returns {Uint8Array}
   */
  signTransaction(transaction) {
    if (!transaction.isFrozen()) {
      transaction.freeze();
    }
    if (transaction._signedTransactions.length != 1) {
      throw new Error("`PrivateKey.signTransaction()` requires `Transaction` to have a single node `AccountId` set");
    }
    const tx = /** @type {ProtoSignedTransaction} */
    transaction._signedTransactions[0];
    const publicKeyHex = hex.encode(this.publicKey.toBytesRaw());
    if (tx.sigMap == null) {
      tx.sigMap = {};
    }
    if (tx.sigMap.sigPair == null) {
      tx.sigMap.sigPair = [];
    }
    for (const sigPair of tx.sigMap.sigPair) {
      if (sigPair.pubKeyPrefix != null && hex.encode(sigPair.pubKeyPrefix) === publicKeyHex) {
        switch (this._type) {
          case "ED25519":
            return (/** @type {Uint8Array} */sigPair.ed25519
            );
          case "secp256k1":
            return (/** @type {Uint8Array} */
              sigPair.ECDSASecp256k1
            );
        }
      }
    }
    const siganture = this.sign(tx.bodyBytes != null ? tx.bodyBytes : new Uint8Array());

    /** @type {ProtoSignaturePair} */
    const protoSignature = {
      pubKeyPrefix: this.publicKey.toBytesRaw()
    };
    switch (this._type) {
      case "ED25519":
        protoSignature.ed25519 = siganture;
        break;
      case "secp256k1":
        protoSignature.ECDSASecp256k1 = siganture;
        break;
    }
    tx.sigMap.sigPair.push(protoSignature);
    transaction._signerPublicKeys.add(publicKeyHex);
    return siganture;
  }

  /**
   * Check if `derive` can be called on this private key.
   *
   * This is only the case if the key was created from a mnemonic.
   *
   * @returns {boolean}
   */
  isDerivable() {
    return this._key._chainCode != null;
  }

  /**
   * @returns {Uint8Array}
   */
  toBytes() {
    if (this._key instanceof _Ed25519PrivateKey.default) {
      return this.toBytesRaw();
    } else {
      return this.toBytesDer();
    }
  }

  /**
   * @returns {Uint8Array}
   */
  toBytesDer() {
    return this._key.toBytesDer();
  }

  /**
   * @returns {Uint8Array}
   */
  toBytesRaw() {
    return this._key.toBytesRaw();
  }

  /**
   * @returns {string}
   */
  toString() {
    return this.toStringDer();
  }

  /**
   * @returns {string}
   */
  toStringDer() {
    return hex.encode(this.toBytesDer());
  }

  /**
   * @returns {string}
   */
  toStringRaw() {
    return hex.encode(this.toBytesRaw());
  }

  /**
   * Create a keystore with a given passphrase.
   *
   * The key can be recovered later with `fromKeystore()`.
   *
   * Note that this will not retain the ancillary data used for
   * deriving child keys, thus `.derive()` on the restored key will
   * throw even if this instance supports derivation.
   *
   * @param {string} [passphrase]
   * @returns {Promise<Uint8Array>}
   */
  toKeystore(passphrase = "") {
    return (0, _keystore.createKeystore)(this.toBytesRaw(), passphrase);
  }
}
exports.default = PrivateKey;
_Cache.default.privateKeyConstructor = key => new PrivateKey(key);
_Cache.default.privateKeyFromBytes = bytes => PrivateKey.fromBytes(bytes);

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