Java
Java
XML-DSig Add Reference with Transforms Specified Explicitly
Demonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.Chilkat Java Downloads
import com.chilkatsoft.*;
public class ChilkatExample {
static {
try {
System.loadLibrary("chilkat");
} catch (UnsatisfiedLinkError e) {
System.err.println("Native code library failed to load.\n" + e);
System.exit(1);
}
}
public static void main(String argv[])
{
boolean success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
success = true;
// Create the following XML to be signed:
// <doc>
// <s id="s1">Some text...</s>
// <p>Some text...</p>
// <p class="note">A note...</p>
// </doc>
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
CkXml xmlToSign = new CkXml();
xmlToSign.put_Tag("doc");
xmlToSign.UpdateAttrAt("s",true,"id","s1");
xmlToSign.UpdateChildContent("s","Some text...");
xmlToSign.UpdateChildContent("p","Some text...");
xmlToSign.UpdateAttrAt("p[1]",true,"class","note");
xmlToSign.UpdateChildContent("p[1]","A note...");
System.out.println(xmlToSign.getXml());
CkXmlDSigGen gen = new CkXmlDSigGen();
gen.put_SigLocation("doc");
gen.put_SigLocationMod(0);
gen.put_SigId("Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
gen.put_SigNamespacePrefix("ds");
gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
gen.put_SigValueId("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue");
gen.put_SignedInfoCanonAlg("C14N");
gen.put_SignedInfoDigestMethod("sha1");
// Set the KeyInfoId before adding references..
gen.put_KeyInfoId("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo");
// The following XML to be added as an Object to the Signature
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
// <xades:QualifyingProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties" Target="#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#">
// <xades:SignedProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties">
// <xades:SignedSignatureProperties>
// <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime>
// <xades:SigningCertificate>
// <xades:Cert>
// <xades:CertDigest>
// <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
// <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue>
// </xades:CertDigest>
// <xades:IssuerSerial>
// <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName>
// <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber>
// </xades:IssuerSerial>
// </xades:Cert>
// </xades:SigningCertificate>
// </xades:SignedSignatureProperties>
// <xades:SignedDataObjectProperties>
// <xades:DataObjectFormat ObjectReference="#Reference-24eb6003-d41c-442c-a731-d4c58f94790b">
// <xades:Description/>
// <xades:ObjectIdentifier>
// <xades:Identifier Qualifier="OIDAsURN">urn:oid:1.2.840.10003.5.109.10</xades:Identifier>
// <xades:Description/>
// </xades:ObjectIdentifier>
// <xades:MimeType>text/xml</xades:MimeType>
// <xades:Encoding/>
// </xades:DataObjectFormat>
// </xades:SignedDataObjectProperties>
// </xades:SignedProperties>
// </xades:QualifyingProperties>
CkXml object1 = new CkXml();
object1.put_Tag("xades:QualifyingProperties");
object1.AddAttribute("Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties");
object1.AddAttribute("Target","#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#");
object1.UpdateAttrAt("xades:SignedProperties",true,"Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT");
// Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1");
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");
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",true,"ObjectReference","#Reference-24eb6003-d41c-442c-a731-d4c58f94790b");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","");
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier",true,"Qualifier","OIDAsURN");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","urn:oid:1.2.840.10003.5.109.10");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description","");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","");
System.out.println(object1.getXml());
gen.AddObject("",object1.getXml(),"","");
// -------- Reference 1 --------
// Create the following Transforms fragment:
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
// <ds:Transforms>
// <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
// <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
// <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
// <ds:XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#">not(ancestor-or-self::ds:Signature)</ds:XPath>
// </ds:Transform>
// </ds:Transforms>
CkXml xml1 = new CkXml();
xml1.put_Tag("ds:Transforms");
xml1.UpdateAttrAt("ds:Transform",true,"Algorithm","http://www.w3.org/TR/2001/REC-xml-c14n-20010315");
xml1.UpdateAttrAt("ds:Transform[1]",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#enveloped-signature");
xml1.UpdateAttrAt("ds:Transform[2]",true,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116");
xml1.UpdateAttrAt("ds:Transform[2]|ds:XPath",true,"xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
xml1.UpdateChildContent("ds:Transform[2]|ds:XPath","not(ancestor-or-self::ds:Signature)");
// This is the "Transforms" XML fragment passed to AddSameDocRef2.
System.out.println(xml1.getXml());
gen.AddSameDocRef2("","sha1",xml1,"");
gen.SetRefIdAttr("","Reference-24eb6003-d41c-442c-a731-d4c58f94790b");
// -------- Reference 2 --------
gen.AddObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties","sha1","","","http://uri.etsi.org/01903#SignedProperties");
// -------- Reference 3 --------
gen.AddSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo","sha1","","","");
// Provide a certificate + private key. (PFX password is test123)
CkCert cert = new CkCert();
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
if (success != true) {
System.out.println(cert.lastErrorText());
return;
}
gen.SetX509Cert(cert,true);
gen.put_KeyInfoType("X509Data+KeyValue");
gen.put_X509Type("CertChain");
// Load XML to be signed...
CkStringBuilder sbXml = new CkStringBuilder();
xmlToSign.GetXmlSb(sbXml);
gen.put_Behaviors("IndentedSignature");
// Sign the XML...
success = gen.CreateXmlDSigSb(sbXml);
if (success != true) {
System.out.println(gen.lastErrorText());
return;
}
// -----------------------------------------------
// Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",false);
System.out.println(sbXml.getAsString());
// ----------------------------------------
// Verify the signatures we just produced...
CkXmlDSig verifier = new CkXmlDSig();
success = verifier.LoadSignatureSb(sbXml);
if (success != true) {
System.out.println(verifier.lastErrorText());
return;
}
int numSigs = verifier.get_NumSignatures();
int verifyIdx = 0;
while (verifyIdx < numSigs) {
verifier.put_Selector(verifyIdx);
boolean verified = verifier.VerifySignature(true);
if (verified != true) {
System.out.println(verifier.lastErrorText());
return;
}
verifyIdx = verifyIdx+1;
}
System.out.println("All signatures were successfully verified.");
}
}