let oSigner = yield cadesplugin.CreateObjectAsync("CAdESCOM.CPSigner");

yield oSigner.propset_Certificate(cert);
//yield oSigner.propset_CheckCertificate(true);

//в объект описания hash вставляем уже готовый hash с сервера
yield hashObject.SetHashValue(data[i].Hash);
yield coHashObject.SetHashValue(data[i].Hash);

var oDocumentNameAttr = yield cadesplugin.CreateObjectAsync("CADESCOM.CPAttribute");
yield oDocumentNameAttr.propset_Name(CADESCOM_AUTHENTICATED_ATTRIBUTE_DOCUMENT_NAME);
yield oDocumentNameAttr.propset_Value(data[i].Filename);

var oAuthAttrs = yield oSigner.AuthenticatedAttributes2;
yield oAuthAttrs.Add(oDocumentNameAttr);

let oSignedData = yield cadesplugin.CreateObjectAsync("CAdESCOM.CadesSignedData");
oSignedData.propset_ContentEncoding(cadesplugin.CADESCOM_BASE64_TO_BINARY);
//результат подписания в base64
let signatureHex =
    yield oSignedData.SignHash(hashObject, oSigner, 1);

if (data[i].CoSignature == "") {
    data[i].CoSignature = signatureHex;
    data[i].Signature = signatureHex;
} else {
    yield oSignedData.VerifyHash(coHashObject, data[i].CoSignature, 1);
    let coSignatureHex =
        yield oSignedData.CoSignHash(hashObject, oSigner, 1);
    data[i].CoSignature = coSignatureHex;
    data[i].Signature = signatureHex;
}