bool FileSigner::signFile(const SignOptions& signOptions, CertificatePtr cert) {
    if (!FileExists(signOptions.file_in)) {
        LOG_WARNING << "File " << signOptions.file_in << " is not exists, exit with false";
        return false;
    }

    if (!cert) {
        LOG_ERROR << "Certificate is null";
        return false;
    }

    CRYPT_SIGN_MESSAGE_PARA signPara = { sizeof(signPara) };
    signPara.dwMsgEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
    signPara.pSigningCert = CertDuplicateCertificateContext(cert->certContext);
    signPara.HashAlgorithm.pszObjId = (LPSTR)GetHashOid(cert->certContext);

    CADES_SIGN_PARA cadesSignPara = { sizeof(cadesSignPara) };
    cadesSignPara.dwCadesType = CADES_BES;

    CADES_SIGN_MESSAGE_PARA para = { sizeof(para) };
    para.pSignMessagePara = &signPara;
    para.pCadesSignPara = &cadesSignPara;

    std::vector<BYTE> data;
    ReadFileToVector(signOptions.file_in, data);

    const BYTE *pbToBeSigned[] = { &data[0] };
    DWORD cbToBeSigned[] = { (DWORD)data.size() };

    PCRYPT_DATA_BLOB pSignedMessage = 0;
    if(!CadesSignMessage(&para, (signOptions.detached ? TRUE : FALSE)
                         ,(!signOptions.detached ? 1 : 1/* count elements in pbToBeSigned*/), pbToBeSigned, cbToBeSigned, &pSignedMessage)) {
        LOG_ERROR << "CadesSignMessage() failed! Last Error: " << GetLastError();
        return false;
    }

    std::vector<BYTE> message(pSignedMessage->cbData);
    std::copy(pSignedMessage->pbData,
        pSignedMessage->pbData + pSignedMessage->cbData,message.begin());

    SaveVectorToFile(signOptions.file_out, message);
    LOG_INFO << "Save signed data to " << signOptions.file_out << ", write " << message.size() << " bytes";

    if(!CadesFreeBlob(pSignedMessage))
        LOG_ERROR << "CadesFreeBlob() failed";

    return true;
}