React Native
React Native
XML Signature Multiple External References
See more XML Digital Signatures Examples
Demonstrates how to add multiple external references to an XML digital signature.Chilkat React Native Downloads
import { BinData, Cert, Http, StringBuilder, Xml, XmlDSig, XmlDSigGen } from '@chilkat/react-native'
async function chilkatExample() {
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// This example creates the following signed XML with multiple external references:
// <?xml version="1.0" encoding="UTF-8"?>
// <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4">
// <ds:SignedInfo>
// <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
// <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
// <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0" URI="https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456">
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </ds:Reference>
// <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1" URI="https://isus.ezdrowie.gov.pl/fhir/Encounter/124/_history/22">
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </ds:Reference>
// <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2" URI="https://isus.ezdrowie.gov.pl/fhir/Condition/125/_history/1">
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </ds:Reference>
// <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3" URI="https://isus.ezdrowie.gov.pl/fhir/Procedure/126/_history/1">
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </ds:Reference>
// <ds:Reference Type="http://uri.etsi.org/01903#SignedProperties" URI="#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops">
// <ds:Transforms>
// <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
// </ds:Transforms>
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </ds:Reference>
// </ds:SignedInfo>
// <ds:SignatureValue Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue">...</ds:SignatureValue>
// <ds:KeyInfo>
// <ds:X509Data>
// <ds:X509Certificate>...</ds:X509Certificate>
// <ds:X509SubjectName>...</ds:X509SubjectName>
// <ds:X509IssuerSerial>
// <ds:X509IssuerName>...</ds:X509IssuerName>
// <ds:X509SerialNumber>...</ds:X509SerialNumber>
// </ds:X509IssuerSerial>
// </ds:X509Data>
// </ds:KeyInfo>
// <ds:Object>
// <xades:QualifyingProperties xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#" Target="#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4">
// <xades:SignedProperties Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops">
// <xades:SignedSignatureProperties>
// <xades:SigningTime>2021-06-02T07:10:13.306+02:00</xades:SigningTime>
// <xades:SigningCertificate>
// <xades:Cert>
// <xades:CertDigest>
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </xades:CertDigest>
// <xades:IssuerSerial>
// <ds:X509IssuerName>...</ds:X509IssuerName>
// <ds:X509SerialNumber>...</ds:X509SerialNumber>
// </xades:IssuerSerial>
// </xades:Cert>
// <xades:Cert>
// <xades:CertDigest>
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </xades:CertDigest>
// <xades:IssuerSerial>
// <ds:X509IssuerName>...</ds:X509IssuerName>
// <ds:X509SerialNumber>...</ds:X509SerialNumber>
// </xades:IssuerSerial>
// </xades:Cert>
// <xades:Cert>
// <xades:CertDigest>
// <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
// <ds:DigestValue>...</ds:DigestValue>
// </xades:CertDigest>
// <xades:IssuerSerial>
// <ds:X509IssuerName>...</ds:X509IssuerName>
// <ds:X509SerialNumber>...</ds:X509SerialNumber>
// </xades:IssuerSerial>
// </xades:Cert>
// </xades:SigningCertificate>
// </xades:SignedSignatureProperties>
// </xades:SignedProperties>
// </xades:QualifyingProperties>
// </ds:Object>
// </ds:Signature>
//
const gen = new XmlDSigGen();
gen.sigLocation = '';
gen.sigLocationMod = 0;
// Note: ID's simply need to be unique values in the signed XML document. They don't necessarily need to be GUID/UUID formatted.
gen.sigId = 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4';
gen.sigNamespacePrefix = 'ds';
gen.sigNamespaceUri = 'http://www.w3.org/2000/09/xmldsig#';
gen.sigValueId = 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue';
gen.signedInfoCanonAlg = 'C14N';
gen.signedInfoDigestMethod = 'sha256';
// Create an Object to be added to the Signature.
const object1 = new Xml();
object1.tag = 'xades:QualifyingProperties';
object1.addAttribute('xmlns:xades', 'http://uri.etsi.org/01903/v1.3.2#');
object1.addAttribute('xmlns:xades141', 'http://uri.etsi.org/01903/v1.4.1#');
object1.addAttribute('Target', '#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4');
object1.updateAttrAt('xades:SignedProperties', true, 'Id', 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops');
object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime', 'TO BE GENERATED BY CHILKAT');
// This assumes there are 3 certs in the certificate chain: The signing certificate, an intermediate root, and the root CA.
// Remove the lines with "Cert[2]" if there is no intermediate root...
object1.updateAttrAt('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod', true, 'Algorithm', 'http://www.w3.org/2001/04/xmlenc#sha256');
object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue', 'TO BE GENERATED BY CHILKAT');
object1.updateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2', 'TO BE GENERATED BY CHILKAT');
gen.addObject('', object1.getXml(), '', '');
const http = new Http();
const bd = new BinData();
let url = 'https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456';
try {
await http.quickGetBdAsync(url, bd);
} catch {
console.log(http.lastErrorText);
return;
}
// -------- Reference 1 --------
gen.addExternalBinaryRef(url, bd, 'sha256', '');
gen.setRefIdAttr(url, 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0');
// -------- Reference 2 --------
bd.clear();
url = 'https://isus.ezdrowie.gov.pl/fhir/Encounter/789/_history/1';
try {
await http.quickGetBdAsync(url, bd);
} catch {
console.log(http.lastErrorText);
return;
}
gen.addExternalBinaryRef(url, bd, 'sha256', '');
gen.setRefIdAttr(url, 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1');
// -------- Reference 3 --------
bd.clear();
url = 'https://isus.ezdrowie.gov.pl/fhir/Condition/123456/_history/1';
try {
await http.quickGetBdAsync(url, bd);
} catch {
console.log(http.lastErrorText);
return;
}
gen.addExternalBinaryRef(url, bd, 'sha256', '');
gen.setRefIdAttr(url, 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2');
// -------- Reference 4 --------
bd.clear();
url = 'https://isus.ezdrowie.gov.pl/fhir/Procedure/123456/_history/1';
try {
await http.quickGetBdAsync(url, bd);
} catch {
console.log(http.lastErrorText);
return;
}
gen.addExternalBinaryRef(url, bd, 'sha256', '');
gen.setRefIdAttr(url, 'xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3');
// -------- Reference 5 --------
gen.addObjectRef('xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops', 'sha256', 'C14N', '', 'http://uri.etsi.org/01903#SignedProperties');
// Provide a certificate + private key. (PFX password is test123)
const cert = new Cert();
try {
cert.loadPfxFile('qa_data/pfx/cert_test123.pfx', 'test123');
} catch {
console.log(cert.lastErrorText);
return;
}
gen.setX509Cert(cert, true);
gen.keyInfoType = 'X509Data';
gen.x509Type = 'IssuerSerial,SubjectName,Certificate';
// This will be an enveloping signature where the Signature element
// is the XML document root, the signed data is contained within Object
// tag(s) within the Signature.
// Therefore, pass an empty sbXml to CreateXmlDsigSb.
const sbXml = new StringBuilder();
gen.behaviors = 'IndentedSignature';
// Sign the XML...
try {
await gen.createXmlDSigSbAsync(sbXml);
} catch {
console.log(gen.lastErrorText);
return;
}
// -----------------------------------------------
// Save the signed XML to a file.
sbXml.writeFile('qa_output/signedXml.xml', 'utf-8', false);
console.log(sbXml.getAsString());
// ----------------------------------------
// Verify the signature we just produced...
const verifier = new XmlDSig();
try {
verifier.loadSignatureSb(sbXml);
} catch {
console.log(verifier.lastErrorText);
return;
}
try {
verifier.verifySignature(true);
} catch {
console.log(verifier.lastErrorText);
return;
}
console.log('This signature was successfully verified.');
}