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Rust

XML-DSig Add Reference with Transforms Specified Explicitly

Demonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.

Chilkat Rust Downloads

Rust

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

let _ = 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

let xml_to_sign = chilkat::Xml::new();
xml_to_sign.set_tag("doc");
let _ = xml_to_sign.update_attr_at("s", true, "id", "s1");
xml_to_sign.update_child_content("s", "Some text...");
xml_to_sign.update_child_content("p", "Some text...");
let _ = xml_to_sign.update_attr_at("p[1]", true, "class", "note");
xml_to_sign.update_child_content("p[1]", "A note...");

println!("{}", xml_to_sign.get_xml().unwrap_or_default());

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

gen_.set_sig_location("doc");
gen_.set_sig_location_mod(0);
gen_.set_sig_id("Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
gen_.set_sig_namespace_prefix("ds");
gen_.set_sig_namespace_uri("http://www.w3.org/2000/09/xmldsig#");
gen_.set_sig_value_id("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue");
gen_.set_signed_info_canon_alg("C14N");
gen_.set_signed_info_digest_method("sha1");

// Set the KeyInfoId before adding references..
gen_.set_key_info_id("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>

let object1 = chilkat::Xml::new();
object1.set_tag("xades:QualifyingProperties");
let _ = object1.add_attribute("Id", "Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties");
let _ = object1.add_attribute("Target", "#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
let _ = object1.add_attribute("xmlns:ds", "http://www.w3.org/2000/09/xmldsig#");
let _ = object1.add_attribute("xmlns:xades", "http://uri.etsi.org/01903/v1.3.2#");
let _ = object1.update_attr_at("xades:SignedProperties", true, "Id", "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties");
object1.update_child_content("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
let _ = object1.update_attr_at("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod", true, "Algorithm", "http://www.w3.org/2000/09/xmldsig#sha1");
object1.update_child_content("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue", "TO BE GENERATED BY CHILKAT");
object1.update_child_content("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2", "TO BE GENERATED BY CHILKAT");
let _ = object1.update_attr_at("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat", true, "ObjectReference", "#Reference-24eb6003-d41c-442c-a731-d4c58f94790b");
object1.update_child_content("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description", "");
let _ = object1.update_attr_at("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier", true, "Qualifier", "OIDAsURN");
object1.update_child_content("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier", "urn:oid:1.2.840.10003.5.109.10");
object1.update_child_content("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description", "");
object1.update_child_content("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType", "text/xml");
object1.update_child_content("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding", "");

println!("{}", object1.get_xml().unwrap_or_default());

let _ = gen_.add_object("", &object1.get_xml().unwrap_or_default(), "", "");

// -------- 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>

let xml1 = chilkat::Xml::new();
xml1.set_tag("ds:Transforms");
let _ = xml1.update_attr_at("ds:Transform", true, "Algorithm", "http://www.w3.org/TR/2001/REC-xml-c14n-20010315");
let _ = xml1.update_attr_at("ds:Transform[1]", true, "Algorithm", "http://www.w3.org/2000/09/xmldsig#enveloped-signature");
let _ = xml1.update_attr_at("ds:Transform[2]", true, "Algorithm", "http://www.w3.org/TR/1999/REC-xpath-19991116");
let _ = xml1.update_attr_at("ds:Transform[2]|ds:XPath", true, "xmlns:ds", "http://www.w3.org/2000/09/xmldsig#");
xml1.update_child_content("ds:Transform[2]|ds:XPath", "not(ancestor-or-self::ds:Signature)");

// This is the "Transforms" XML fragment passed to AddSameDocRef2.
println!("{}", xml1.get_xml().unwrap_or_default());

let _ = gen_.add_same_doc_ref2("", "sha1", &xml1, "");

let _ = gen_.set_ref_id_attr("", "Reference-24eb6003-d41c-442c-a731-d4c58f94790b");

// -------- Reference 2 --------
let _ = gen_.add_object_ref("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties", "sha1", "", "", "http://uri.etsi.org/01903#SignedProperties");

// -------- Reference 3 --------
let _ = gen_.add_same_doc_ref("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo", "sha1", "", "", "");

// 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+KeyValue");
gen_.set_x509_type("CertChain");

// 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("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.");