@opendatalabs/vana-sdk/dist/crypto/services/WalletKeyEncryptionService.cjs

A TypeScript library for interacting with Vana Network smart contracts.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
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 __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var WalletKeyEncryptionService_exports = {};
__export(WalletKeyEncryptionService_exports, {
  WalletKeyEncryptionService: () => WalletKeyEncryptionService
});
module.exports = __toCommonJS(WalletKeyEncryptionService_exports);
var import_crypto_utils = require("../../utils/crypto-utils");
var import_viem = require("viem");
class WalletKeyEncryptionService {
  eciesProvider;
  constructor(config) {
    this.eciesProvider = config.eciesProvider;
  }
  /**
   * Encrypts data using a wallet's public key.
   *
   * @param data - The plaintext message to encrypt for the wallet owner.
   * @param publicKey - The recipient wallet's public key for encryption.
   * @returns A promise that resolves to the encrypted data as a hex string.
   * @throws {Error} When encryption fails due to invalid key format.
   *
   * @example
   * ```typescript
   * const encrypted = await processor.encryptWithWalletPublicKey(
   *   "Secret message",
   *   "0x04..." // 65-byte uncompressed public key
   * );
   * console.log(`Encrypted: ${encrypted}`);
   * ```
   */
  async encryptWithWalletPublicKey(data, publicKey) {
    const publicKeyBytes = (0, import_crypto_utils.processWalletPublicKey)(publicKey);
    const normalizedKey = this.eciesProvider.normalizeToUncompressed(publicKeyBytes);
    const dataBytes = (0, import_viem.stringToBytes)(data);
    const encrypted = await this.eciesProvider.encrypt(
      normalizedKey,
      dataBytes
    );
    const result = (0, import_viem.concat)([
      encrypted.iv,
      encrypted.ephemPublicKey,
      encrypted.ciphertext,
      encrypted.mac
    ]);
    return (0, import_viem.toHex)(result).slice(2);
  }
  /**
   * Decrypts data using a wallet's private key.
   *
   * @param encryptedData - The hex-encoded encrypted data to decrypt.
   * @param privateKey - The wallet's private key for decryption.
   * @returns A promise that resolves to the decrypted plaintext message.
   * @throws {Error} When decryption fails due to invalid data or key format.
   *
   * @example
   * ```typescript
   * const decrypted = await processor.decryptWithWalletPrivateKey(
   *   encryptedHexString,
   *   "0x..." // 32-byte private key
   * );
   * console.log(`Decrypted: ${decrypted}`);
   * ```
   */
  async decryptWithWalletPrivateKey(encryptedData, privateKey) {
    const privateKeyBytes = (0, import_crypto_utils.processWalletPrivateKey)(privateKey);
    const prefixedHex = encryptedData.startsWith("0x") ? encryptedData : `0x${encryptedData}`;
    const encryptedBytes = (0, import_viem.fromHex)(prefixedHex, "bytes");
    const encrypted = (0, import_crypto_utils.parseEncryptedDataBuffer)(encryptedBytes);
    const decrypted = await this.eciesProvider.decrypt(
      privateKeyBytes,
      encrypted
    );
    return (0, import_viem.bytesToString)(decrypted);
  }
  /**
   * Encrypts a Uint8Array with a wallet public key
   *
   * @param data - Binary data to encrypt
   * @param publicKey - Public key as hex string or Uint8Array
   * @returns Encrypted data structure
   */
  async encryptBinary(data, publicKey) {
    const publicKeyBytes = (0, import_crypto_utils.processWalletPublicKey)(publicKey);
    const normalizedKey = this.eciesProvider.normalizeToUncompressed(publicKeyBytes);
    return this.eciesProvider.encrypt(normalizedKey, data);
  }
  /**
   * Decrypts to a Uint8Array with a wallet private key
   *
   * @param encrypted - Encrypted data structure
   * @param privateKey - Private key as hex string or Uint8Array
   * @returns Decrypted binary data
   */
  async decryptBinary(encrypted, privateKey) {
    const privateKeyBytes = (0, import_crypto_utils.processWalletPrivateKey)(privateKey);
    return this.eciesProvider.decrypt(privateKeyBytes, encrypted);
  }
  /**
   * Gets the underlying ECIES provider
   *
   * @returns The ECIES provider instance
   */
  getECIESProvider() {
    return this.eciesProvider;
  }
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  WalletKeyEncryptionService
});
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