Zig
Zig
XML-DSig Add Reference with Transforms Specified Explicitly
Demonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.Chilkat Zig Downloads
const std = @import("std");
const chilkat = @import("chilkat");
pub fn main(init: std.process.Init) !void {
const alloc = init.arena.allocator();
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// 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
const xml_to_sign = try chilkat.Xml.init();
defer xml_to_sign.deinit();
xml_to_sign.setTag("doc");
xml_to_sign.updateAttrAt("s", true, "id", "s1") catch {};
xml_to_sign.updateChildContent("s", "Some text...");
xml_to_sign.updateChildContent("p", "Some text...");
xml_to_sign.updateAttrAt("p[1]", true, "class", "note") catch {};
xml_to_sign.updateChildContent("p[1]", "A note...");
std.debug.print("{s}\n", .{try xml_to_sign.getXml(alloc)});
const gen = try chilkat.XmlDSigGen.init();
defer gen.deinit();
gen.setSigLocation("doc");
gen.setSigLocationMod(0);
gen.setSigId("Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
gen.setSigNamespacePrefix("ds");
gen.setSigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
gen.setSigValueId("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue");
gen.setSignedInfoCanonAlg("C14N");
gen.setSignedInfoDigestMethod("sha1");
// Set the KeyInfoId before adding references..
gen.setKeyInfoId("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>
const object1 = try chilkat.Xml.init();
defer object1.deinit();
object1.setTag("xades:QualifyingProperties");
object1.addAttribute("Id", "Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties") catch {};
object1.addAttribute("Target", "#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature") catch {};
object1.addAttribute("xmlns:ds", "http://www.w3.org/2000/09/xmldsig#") catch {};
object1.addAttribute("xmlns:xades", "http://uri.etsi.org/01903/v1.3.2#") catch {};
object1.updateAttrAt("xades:SignedProperties", true, "Id", "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties") catch {};
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") catch {};
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") catch {};
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") catch {};
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", "");
std.debug.print("{s}\n", .{try object1.getXml(alloc)});
gen.addObject("", try object1.getXml(alloc), "", "") catch {};
// -------- 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>
const xml1 = try chilkat.Xml.init();
defer xml1.deinit();
xml1.setTag("ds:Transforms");
xml1.updateAttrAt("ds:Transform", true, "Algorithm", "http://www.w3.org/TR/2001/REC-xml-c14n-20010315") catch {};
xml1.updateAttrAt("ds:Transform[1]", true, "Algorithm", "http://www.w3.org/2000/09/xmldsig#enveloped-signature") catch {};
xml1.updateAttrAt("ds:Transform[2]", true, "Algorithm", "http://www.w3.org/TR/1999/REC-xpath-19991116") catch {};
xml1.updateAttrAt("ds:Transform[2]|ds:XPath", true, "xmlns:ds", "http://www.w3.org/2000/09/xmldsig#") catch {};
xml1.updateChildContent("ds:Transform[2]|ds:XPath", "not(ancestor-or-self::ds:Signature)");
// This is the "Transforms" XML fragment passed to AddSameDocRef2.
std.debug.print("{s}\n", .{try xml1.getXml(alloc)});
gen.addSameDocRef2("", "sha1", xml1, "") catch {};
gen.setRefIdAttr("", "Reference-24eb6003-d41c-442c-a731-d4c58f94790b") catch {};
// -------- Reference 2 --------
gen.addObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties", "sha1", "", "", "http://uri.etsi.org/01903#SignedProperties") catch {};
// -------- Reference 3 --------
gen.addSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo", "sha1", "", "", "") catch {};
// Provide a certificate + private key. (PFX password is test123)
const cert = try chilkat.Cert.init();
defer cert.deinit();
cert.loadPfxFile("qa_data/pfx/cert_test123.pfx", "test123") catch {
std.debug.print("{s}\n", .{try cert.getLastErrorText(alloc)});
return;
};
gen.setX509Cert(cert, true) catch {};
gen.setKeyInfoType("X509Data+KeyValue");
gen.setX509Type("CertChain");
// Load XML to be signed...
const sb_xml = try chilkat.StringBuilder.init();
defer sb_xml.deinit();
xml_to_sign.getXmlSb(sb_xml) catch {};
gen.setBehaviors("IndentedSignature");
// Sign the XML...
gen.createXmlDSigSb(sb_xml) catch {
std.debug.print("{s}\n", .{try gen.getLastErrorText(alloc)});
return;
};
// -----------------------------------------------
// Save the signed XML to a file.
try sb_xml.writeFile("qa_output/signedXml.xml", "utf-8", false);
std.debug.print("{s}\n", .{try sb_xml.getAsString(alloc)});
// ----------------------------------------
// Verify the signatures we just produced...
const verifier = try chilkat.XmlDSig.init();
defer verifier.deinit();
verifier.loadSignatureSb(sb_xml) catch {
std.debug.print("{s}\n", .{try verifier.getLastErrorText(alloc)});
return;
};
const num_sigs = verifier.getNumSignatures();
var verify_idx: i32 = 0;
while (verify_idx < num_sigs) {
verifier.setSelector(verify_idx);
verifier.verifySignature(true) catch {
std.debug.print("{s}\n", .{try verifier.getLastErrorText(alloc)});
return;
};
verify_idx = verify_idx + 1;
}
std.debug.print("All signatures were successfully verified.\n", .{});
}