getEncryptedKeys static method

Future<Map<String, String>> getEncryptedKeys(String atsign)

Implementation

static Future<Map<String, String>> getEncryptedKeys(String atsign) async {
  AtsignKey? atsignKeyData = await _keyChainManager.readAtsign(name: atsign);

  if (atsignKeyData == null) {
    throw AtClientException.message(
        "Failed to fetch the keys for the atsign: $atsign");
  }

  Map<String, String> encryptedAtKeysMap = <String, String>{};

  String encryptedPkamPublicKey = EncryptionUtil.encryptValue(
      atsignKeyData.pkamPublicKey!, atsignKeyData.selfEncryptionKey!);
  encryptedAtKeysMap[BackupKeyConstants.PKAM_PUBLIC_KEY_FROM_KEY_FILE] =
      encryptedPkamPublicKey;

  String encryptedPkamPrivateKey = EncryptionUtil.encryptValue(
      atsignKeyData.pkamPrivateKey!, atsignKeyData.selfEncryptionKey!);
  encryptedAtKeysMap[BackupKeyConstants.PKAM_PRIVATE_KEY_FROM_KEY_FILE] =
      encryptedPkamPrivateKey;

  String encryptedEncryptionPublicKey = EncryptionUtil.encryptValue(
      atsignKeyData.encryptionPublicKey!, atsignKeyData.selfEncryptionKey!);
  encryptedAtKeysMap[BackupKeyConstants.ENCRYPTION_PUBLIC_KEY_FROM_FILE] =
      encryptedEncryptionPublicKey;

  String encryptedEncryptionPrivateKey = EncryptionUtil.encryptValue(
      atsignKeyData.encryptionPrivateKey!, atsignKeyData.selfEncryptionKey!);
  encryptedAtKeysMap[BackupKeyConstants.ENCRYPTION_PRIVATE_KEY_FROM_FILE] =
      encryptedEncryptionPrivateKey;

  encryptedAtKeysMap[BackupKeyConstants.SELF_ENCRYPTION_KEY_FROM_FILE] =
      atsignKeyData.selfEncryptionKey!;
  // The atKeys file generated previous to APKAM feature will not have the
  // apkam_symmetric_key. Hence adding null check to prevent null-pointer exception.
  if (atsignKeyData.apkamSymmetricKey != null) {
    encryptedAtKeysMap[BackupKeyConstants.APKAM_SYMMETRIC_KEY_FROM_FILE] =
        atsignKeyData.apkamSymmetricKey!;
  }
  // The atKeys file generated previous to APKAM feature will not have the
  // enrollment-id. Hence adding null check to prevent null-pointer exception.
  if (atsignKeyData.enrollmentId != null) {
    encryptedAtKeysMap[BackupKeyConstants.APKAM_ENROLLMENT_ID_FROM_FILE] =
        atsignKeyData.enrollmentId!;
  }
  return encryptedAtKeysMap;
}