Unicode C
Unicode C
XAdES using TSA Requiring Client Certificate
See more XML Digital Signatures Examples
Demonstrates how to create an XMLDSig (XAdES) signed document which includes an EncapsulatedTimestamp using a TSA (TimeStamp Authority) server requiring client certificate authentication. One such TSA is https://www3.postsignum.cz/TSS/TSS_crt/Chilkat Unicode C Downloads
#include <C_CkStringBuilderW.h>
#include <C_CkXmlDSigGenW.h>
#include <C_CkXmlW.h>
#include <C_CkCertW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkHttpW.h>
void ChilkatSample(void)
{
BOOL success;
HCkStringBuilderW sbXml;
HCkXmlDSigGenW gen;
HCkXmlW object1;
HCkCertW cert;
HCkJsonObjectW jsonTsa;
HCkHttpW http;
success = FALSE;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
success = TRUE;
// Load the XML to be signed. For example, the XML to be signed might contain something like this:
// <?xml version="1.0" encoding="utf-8"?>
// <TransakcniLogSystemu xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://nsess.public.cz/erms_trans/v_01_01" Id="Signature1">
// <TransLogInfo>
// <Identifikator>XYZ ABC</Identifikator>
// <DatumVzniku>2022-12-20T14:39:02.3625922+01:00</DatumVzniku>
// <DatumCasOd>2022-12-20T14:26:26.88</DatumCasOd>
// <DatumCasDo>2022-12-20T14:39:02.287</DatumCasDo>
// <Software>XYZ</Software>
// <VerzeSoftware>2.0.19.32</VerzeSoftware>
// </TransLogInfo>
// <Udalosti>
// <Udalost>
// <Poradi>1</Poradi>
// ...
// Load the XML to be signed from a file.
// (XML can be loaded from other source, such as a string variable.)
sbXml = CkStringBuilderW_Create();
success = CkStringBuilderW_LoadFile(sbXml,L"xmlToSign.xml",L"utf-8");
gen = CkXmlDSigGenW_Create();
CkXmlDSigGenW_putSigLocation(gen,L"TransakcniLogSystemu");
CkXmlDSigGenW_putSigLocationMod(gen,0);
CkXmlDSigGenW_putSigId(gen,L"SignatureID-Signature1");
CkXmlDSigGenW_putSigNamespacePrefix(gen,L"ds");
CkXmlDSigGenW_putSigNamespaceUri(gen,L"http://www.w3.org/2000/09/xmldsig#");
CkXmlDSigGenW_putSignedInfoCanonAlg(gen,L"C14N");
CkXmlDSigGenW_putSignedInfoDigestMethod(gen,L"sha256");
// Set the KeyInfoId before adding references..
CkXmlDSigGenW_putKeyInfoId(gen,L"KeyInfoId-Signature-Signature1");
// Create an Object to be added to the Signature.
// Note: Chilkat will automatically fill in the values marked as "TO BE GENERATED BY CHILKAT" at the time of signing.
// The EncapsulatedTimestamp will be automatically generated.
object1 = CkXmlW_Create();
CkXmlW_putTag(object1,L"xades:QualifyingProperties");
CkXmlW_AddAttribute(object1,L"xmlns:xades",L"http://uri.etsi.org/01903/v1.3.2#");
CkXmlW_AddAttribute(object1,L"Target",L"#Signature1");
CkXmlW_UpdateAttrAt(object1,L"xades:SignedProperties",TRUE,L"Id",L"SignedProperties-Signature-Signature1");
CkXmlW_UpdateChildContent(object1,L"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime",L"TO BE GENERATED BY CHILKAT");
CkXmlW_UpdateAttrAt(object1,L"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",TRUE,L"Algorithm",L"http://www.w3.org/2001/04/xmlenc#sha256");
CkXmlW_UpdateChildContent(object1,L"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue",L"TO BE GENERATED BY CHILKAT");
CkXmlW_UpdateChildContent(object1,L"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2",L"TO BE GENERATED BY CHILKAT");
// The EncapsulatedTimestamp will be included in the unsigned properties.
CkXmlW_UpdateAttrAt(object1,L"xades:UnsignedProperties|xades:UnsignedSignatureProperties|xades:SignatureTimeStamp",TRUE,L"Id",L"signature-timestamp-5561-8212-3316-5191");
CkXmlW_UpdateAttrAt(object1,L"xades:UnsignedProperties|xades:UnsignedSignatureProperties|xades:SignatureTimeStamp|ds:CanonicalizationMethod",TRUE,L"Algorithm",L"http://www.w3.org/2001/10/xml-exc-c14n#");
CkXmlW_UpdateAttrAt(object1,L"xades:UnsignedProperties|xades:UnsignedSignatureProperties|xades:SignatureTimeStamp|xades:EncapsulatedTimeStamp",TRUE,L"Encoding",L"http://uri.etsi.org/01903/v1.2.2#DER");
CkXmlW_UpdateChildContent(object1,L"xades:UnsignedProperties|xades:UnsignedSignatureProperties|xades:SignatureTimeStamp|xades:EncapsulatedTimeStamp",L"TO BE GENERATED BY CHILKAT");
CkXmlDSigGenW_AddObject(gen,L"XadesObjectId-Signature1",CkXmlW_getXml(object1),L"",L"");
// -------- Reference 1 --------
CkXmlDSigGenW_AddObjectRef(gen,L"SignedProperties-Signature-Signature1",L"sha256",L"EXCL_C14N",L"",L"http://uri.etsi.org/01903#SignedProperties");
// -------- Reference 2 --------
CkXmlDSigGenW_AddSameDocRef(gen,L"KeyInfoId-Signature-Signature1",L"sha256",L"EXCL_C14N",L"",L"");
CkXmlDSigGenW_SetRefIdAttr(gen,L"KeyInfoId-Signature-Signature1",L"ReferenceKeyInfo");
// -------- Reference 3 --------
CkXmlDSigGenW_AddSameDocRef(gen,L"",L"sha256",L"EXCL_C14N",L"",L"");
CkXmlDSigGenW_SetRefIdAttr(gen,L"",L"Reference-Signature1");
// Provide a certificate + private key. (PFX password is test123)
cert = CkCertW_Create();
success = CkCertW_LoadPfxFile(cert,L"qa_data/pfx/cert_test123.pfx",L"test123");
if (success != TRUE) {
wprintf(L"%s\n",CkCertW_lastErrorText(cert));
CkStringBuilderW_Dispose(sbXml);
CkXmlDSigGenW_Dispose(gen);
CkXmlW_Dispose(object1);
CkCertW_Dispose(cert);
return;
}
CkXmlDSigGenW_SetX509Cert(gen,cert,TRUE);
CkXmlDSigGenW_putKeyInfoType(gen,L"X509Data");
CkXmlDSigGenW_putX509Type(gen,L"Certificate");
CkXmlDSigGenW_putBehaviors(gen,L"IndentedSignature");
// -------------------------------------------------------------------------------------------
// To have the EncapsulatedTimeStamp automatically added...
// 1) Add the <xades:EncapsulatedTimeStamp Encoding="http://uri.etsi.org/01903/v1.2.2#DER">TO BE GENERATED BY CHILKAT</xades:EncapsulatedTimeStamp>
// to the unsigned properties. (This was accomplished in the above code.)
// 2) Specify the TSA URL (Timestamping Authority URL).
// Here we specify the TSA URL:
// -------------------------------------------------------------------------------------------
jsonTsa = CkJsonObjectW_Create();
CkJsonObjectW_UpdateString(jsonTsa,L"timestampToken.tsaUrl",L"https://www3.postsignum.cz/TSS/TSS_crt/");
CkJsonObjectW_UpdateBool(jsonTsa,L"timestampToken.requestTsaCert",TRUE);
CkXmlDSigGenW_SetTsa(gen,jsonTsa);
// -------------------------------------------------------------------------------------------
// In this case, the TSA requires client certificate authentication.
// To provide your client certificate, the application will instantiate a Chilkat HTTP object,
// then set it up with a SSL/TLS client certificate, and then tell the XmlDSigGen object
// to use the HTTP object for connections to the TSA server.
// -------------------------------------------------------------------------------------------
http = CkHttpW_Create();
success = CkHttpW_SetSslClientCertPfx(http,L"/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx",L"pfxPassword");
if (success != TRUE) {
wprintf(L"%s\n",CkHttpW_lastErrorText(http));
CkStringBuilderW_Dispose(sbXml);
CkXmlDSigGenW_Dispose(gen);
CkXmlW_Dispose(object1);
CkCertW_Dispose(cert);
CkJsonObjectW_Dispose(jsonTsa);
CkHttpW_Dispose(http);
return;
}
// Tell the XmlDSigGen object to use the above HTTP object for TSA communications.
CkXmlDSigGenW_SetHttpObj(gen,http);
// Sign the XML...
success = CkXmlDSigGenW_CreateXmlDSigSb(gen,sbXml);
if (success != TRUE) {
wprintf(L"%s\n",CkXmlDSigGenW_lastErrorText(gen));
CkStringBuilderW_Dispose(sbXml);
CkXmlDSigGenW_Dispose(gen);
CkXmlW_Dispose(object1);
CkCertW_Dispose(cert);
CkJsonObjectW_Dispose(jsonTsa);
CkHttpW_Dispose(http);
return;
}
// -----------------------------------------------
// Save the signed XML to a file.
success = CkStringBuilderW_WriteFile(sbXml,L"c:/temp/qa_output/signedXml.xml",L"utf-8",FALSE);
wprintf(L"%s\n",CkStringBuilderW_getAsString(sbXml));
CkStringBuilderW_Dispose(sbXml);
CkXmlDSigGenW_Dispose(gen);
CkXmlW_Dispose(object1);
CkCertW_Dispose(cert);
CkJsonObjectW_Dispose(jsonTsa);
CkHttpW_Dispose(http);
}