public async createDetachedSign(certThumbprint: string, dataInBase64: string): Promise<string | undefined> {
    await this.checkCAdESPluginLoaded();
    // @ts-expect-error на случай если плагин не поставлен
    const { cadesplugin } = window;
    try {
      const oStore = await cadesplugin.CreateObjectAsync('CAdESCOM.Store');
      await oStore.Open(
        cadesplugin.CAPICOM_CURRENT_USER_STORE,
        cadesplugin.CAPICOM_MY_STORE,
        cadesplugin.CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED
      );

      const oStoreCerts = await oStore.Certificates;
      const oCertificates = await oStoreCerts.Find(cadesplugin.CAPICOM_CERTIFICATE_FIND_SHA1_HASH, certThumbprint);
      const certsCount = await oCertificates.Count;
      if (certsCount === 0) {
        console.error(`Сертификат с отпечатком: '${certThumbprint}' не найден`);
        return;
      }

      const oCertificate = await oCertificates.Item(1);
      const oSigner = await cadesplugin.CreateObjectAsync('CAdESCOM.CPSigner');
      await oSigner.propset_Certificate(oCertificate);
      await oSigner.propset_CheckCertificate(true);

      const oSignedData = await cadesplugin.CreateObjectAsync('CAdESCOM.CadesSignedData');
      await oSignedData.propset_ContentEncoding(cadesplugin.CADESCOM_BASE64_TO_BINARY);
      await oSignedData.propset_Content(dataInBase64);

      return await oSignedData.SignCades(oSigner, cadesplugin.CADESCOM_CADES_BES, true);
    } catch (error) {
      console.error(cadesplugin.getLastError(error));
      return;
    }
  }

    
    const data = await this.api.createDetachedSign(certificateSubjectName.thumbprint, base64File);
    if (data !== undefined) {
      this.state.update((state) => ({ ...state, deattachedSign: data }));
      
      const blob = new Blob([data], { type: 'application/octet-stream' });
      const url = window.URL.createObjectURL(blob);

      const a = document.createElement('a');
      a.href = url;
      a.download = 'signature.sig';
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);

      window.URL.revokeObjectURL(url);
    }