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Paraguay E-Invoicing Signed XML (SIFEN)

See more XML Digital Signatures Examples

Demonstrates how to sign XML for e-invoicing -- SISTEMA INTEGRADO DE FACTURACIÓN ELECTRÓNICA NACIONAL (SIFEN). This is for signing XML files that need to be submitted to a government agency (Country Paraguay, SIFEN / EKUATIA, Sistema Nacional de Facturacion Electrónica).

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Rust

let _ = true;

// Create the XML to be signed...

// Use this online tool to generate code from sample XML: 
// Generate Code to Create XML

let xml_to_sign = chilkat::Xml::new();
xml_to_sign.set_tag("rDE");
let _ = xml_to_sign.add_attribute("xmlns", "http://ekuatia.set.gov.py/sifen/xsd");
let _ = xml_to_sign.add_attribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
let _ = xml_to_sign.add_attribute("xsi:schemaLocation", "http://ekuatia.set.gov.py/sifen/xsd siRecepDE_v150.xsd");
xml_to_sign.update_child_content("dVerFor", "150");
let _ = xml_to_sign.update_attr_at("DE", true, "Id", "01800228774059001001501012022091519999999990");
xml_to_sign.update_child_content("DE|dDVId", "0");
xml_to_sign.update_child_content("DE|dFecFirma", "2022-09-15T10:23:05");
xml_to_sign.update_child_content("DE|dSisFact", "1");
xml_to_sign.update_child_content("DE|gOpeDE|iTipEmi", "1");
xml_to_sign.update_child_content("DE|gOpeDE|dDesTipEmi", "Normal");
xml_to_sign.update_child_content("DE|gOpeDE|dCodSeg", "999999999");
xml_to_sign.update_child_content("DE|gOpeDE|dInfoEmi", "GENERADA DE PEDIDO 131043202");
xml_to_sign.update_child_content("DE|gTimb|iTiDE", "1");
xml_to_sign.update_child_content("DE|gTimb|dDesTiDE", "Factura electr�nica");
xml_to_sign.update_child_content("DE|gTimb|dNumTim", "18889014");
xml_to_sign.update_child_content("DE|gTimb|dEst", "059");
xml_to_sign.update_child_content("DE|gTimb|dPunExp", "001");
xml_to_sign.update_child_content("DE|gTimb|dNumDoc", "0015010");
xml_to_sign.update_child_content("DE|gTimb|dFeIniT", "2022-05-25");
xml_to_sign.update_child_content("DE|gDatGralOpe|dFeEmiDE", "2022-09-15T10:22:57");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|iTipTra", "1");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|dDesTipTra", "Venta de mercader�a");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|iTImp", "1");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|dDesTImp", "IVA");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|cMoneOpe", "PYG");
xml_to_sign.update_child_content("DE|gDatGralOpe|gOpeCom|dDesMoneOpe", "Guarani");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dRucEm", "80022877");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDVEmi", "4");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|iTipCont", "1");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|cTipReg", "1");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dNomEmi", "ABCDEF SA");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dNomFanEmi", "ABCDEF SA");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDirEmi", "Jos� Abcde Xyz N� 666 e/Abxyz123");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dNumCas", "0");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dCompDir1", "N/A");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dCompDir2", "N/A");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|cDepEmi", "12");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDesDepEmi", "CENTRAL");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|cDisEmi", "153");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDesDisEmi", "CAPIATA");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|cCiuEmi", "1234");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDesCiuEmi", "CAPIATA");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dTelEmi", "(022) 1111 000");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dEmailE", "somebody@example.com.py");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|dDenSuc", "PUNTO 99");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|gActEco|cActEco", "47721");
xml_to_sign.update_child_content("DE|gDatGralOpe|gEmis|gActEco|dDesActEco", "COMERCIO AL POR MENOR DE PRODUCTOS");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|iNatRec", "1");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|iTiOpe", "2");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|cPaisRec", "PRY");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dDesPaisRe", "Paraguay");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|iTiContRec", "2");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dRucRec", "80082971");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dDVRec", "9");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dNomRec", "XXXXXXX");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dNomFanRec", "XXXXXXX");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dNumCasRec", "0");
xml_to_sign.update_child_content("DE|gDatGralOpe|gDatRec|dCodCliente", "9999999");
xml_to_sign.update_child_content("DE|gDtipDE|gCamFE|iIndPres", "1");
xml_to_sign.update_child_content("DE|gDtipDE|gCamFE|dDesIndPres", "Operaci�n presencial");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|iCondOpe", "1");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|dDCondOpe", "Contado");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni|iTiPago", "1");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni|dDesTiPag", "Efectivo");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni|dMonTiPag", "100000.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni|cMoneTiPag", "PYG");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni|dDMoneTiPag", "Guarani");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni[1]|iTiPago", "1");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni[1]|dDesTiPag", "Efectivo");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni[1]|dMonTiPag", "73600.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni[1]|cMoneTiPag", "PYG");
xml_to_sign.update_child_content("DE|gDtipDE|gCamCond|gPaConEIni[1]|dDMoneTiPag", "Guarani");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|dCodInt", "818181");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|dDesProSer", "Widget Abc Xyz");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|cUniMed", "77");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|dDesUniMed", "UNI");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|dCantProSer", "2.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gValorItem|dPUniProSer", "16500.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gValorItem|dTotBruOpeItem", "33000.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gValorItem|gValorRestaItem|dDescItem", "3300.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gValorItem|gValorRestaItem|dPorcDesIt", "20.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gValorItem|gValorRestaItem|dTotOpeItem", "26400.0000");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|iAfecIVA", "1");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|dDesAfecIVA", "Gravado IVA");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|dPropIVA", "100");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|dTasaIVA", "5");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|dBasGravIVA", "25142.8571");
xml_to_sign.update_child_content("DE|gDtipDE|gCamItem|gCamIVA|dLiqIVAItem", "1257.1429");
xml_to_sign.update_child_content("DE|gTotSub|dSubExe", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dSub5", "26400.0000");
xml_to_sign.update_child_content("DE|gTotSub|dSub10", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotOpe", "26400.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotDesc", "6600.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotDescGlotem", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotAntItem", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotAnt", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dPorcDescTotal", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dDescTotal", "6600.0000");
xml_to_sign.update_child_content("DE|gTotSub|dAnticipo", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dRedon", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotGralOpe", "26400.0000");
xml_to_sign.update_child_content("DE|gTotSub|dIVA5", "1257.1429");
xml_to_sign.update_child_content("DE|gTotSub|dIVA10", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTotIVA", "1257.1429");
xml_to_sign.update_child_content("DE|gTotSub|dBaseGrav5", "25142.8571");
xml_to_sign.update_child_content("DE|gTotSub|dBaseGrav10", "0.0000");
xml_to_sign.update_child_content("DE|gTotSub|dTBasGraIVA", "25142.8571");

let gen_ = chilkat::XmlDSigGen::new();

gen_.set_sig_location("rDE");
gen_.set_sig_location_mod(0);
gen_.set_sig_namespace_prefix("");
gen_.set_sig_namespace_uri("http://www.w3.org/2000/09/xmldsig#");
gen_.set_signed_info_canon_alg("C14N");
gen_.set_signed_info_digest_method("sha256");

// -------- Reference 1 --------
let xml1 = chilkat::Xml::new();
xml1.set_tag("Transforms");
let _ = xml1.update_attr_at("Transform", true, "Algorithm", "http://www.w3.org/2000/09/xmldsig#enveloped-signature");
let _ = xml1.update_attr_at("Transform[1]", true, "Algorithm", "http://www.w3.org/2001/10/xml-exc-c14n#");

let _ = gen_.add_same_doc_ref2("01800228774059001001501012022091516941989060", "sha256", &xml1, "");

// Provide a certificate + private key. (PFX password is test123)
let cert = chilkat::Cert::new();
if cert.load_pfx_file("qa_data/pfx/cert_test123.pfx", "test123").is_err() {
    println!("{}", cert.last_error_text());
    return;
}

let _ = gen_.set_x509_cert(&cert, true);

gen_.set_key_info_type("X509Data");
gen_.set_x509_type("Certificate");

// Load XML to be signed...
let sb_xml = chilkat::StringBuilder::new();
let _ = xml_to_sign.get_xml_sb(&sb_xml);

gen_.set_behaviors("IndentedSignature");

// Sign the XML...
if gen_.create_xml_d_sig_sb(&sb_xml).is_err() {
    println!("{}", gen_.last_error_text());
    return;
}

// -----------------------------------------------

// Save the signed XML to a file.
let _ = sb_xml.write_file("c:/temp/qa_output/signedXml.xml", "utf-8", false).is_ok();

println!("{}", sb_xml.get_as_string().unwrap_or_default());

// ----------------------------------------
// Verify the signatures we just produced...
let verifier = chilkat::XmlDSig::new();
if verifier.load_signature_sb(&sb_xml).is_err() {
    println!("{}", verifier.last_error_text());
    return;
}

let num_sigs = verifier.num_signatures();
let mut verify_idx = 0;
while verify_idx < num_sigs {
    verifier.set_selector(verify_idx);
    if verifier.verify_signature(true).is_err() {
        println!("{}", verifier.last_error_text());
        return;
    }

    verify_idx = verify_idx + 1;
}

println!("All signatures were successfully verified.");