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(Delphi DLL) IPS MX Signature - Digitally Sign MX Document

See more XML Digital Signatures Examples

Demonstrates how to digitally sign ISO 20022 SWIFT MX messages.

Note: This example requires Chilkat v9.5.0.89 or later. Additional internal functionality was added to auto-recognize SWIFT MX messages and do what is appropriate to satisfy the SWIFT MX specifications.

Chilkat for Delphi Downloads

Chilkat non-ActiveX DLL for Delphi

Chilkat ActiveX DLL for Delphi

* The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, XmlDSigGen, PublicKey, StringBuilder, XmlDSig, Cert, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
xmlToSign: HCkXml;
gen: HCkXmlDSigGen;
object1: HCkXml;
cert: HCkCert;
sbXml: HCkStringBuilder;
verifier: HCkXmlDSig;
verifyCert: HCkCert;
pubKey: HCkPublicKey;
numSigs: Integer;
verifyIdx: Integer;
verified: Boolean;

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

success := True;

// First create the XML to be signed, or load it from a file, or a string,

// To load XML from a file:
xmlToSign := CkXml_Create();
success := CkXml_LoadXmlFile(xmlToSign,'c:/someDir/mx_document.xml');

// Or to load XML from a string
success := CkXml_LoadXml(xmlToSign,'...');

// Or create the XML directly.
CkXml_Clear(xmlToSign);

// Use this online tool to generate code from sample XML: 
// Generate Code to Create XML

CkXml_putTag(xmlToSign,'DataPDU');
CkXml_AddAttribute(xmlToSign,'xmlns','urn:cma:stp:xsd:stp.1.0');
CkXml_UpdateAttrAt(xmlToSign,'Body|AppHdr',True,'xmlns','urn:iso:std:iso:20022:tech:xsd:head.001.001.01');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|Fr|FIId|FinInstnId|BICFI','ZZZZZZZZ');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|To|FIId|FinInstnId|BICFI','YYYYYYYYYY');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|BizMsgIdr','ZZZZZZZZAXXX999999999999999999999');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|MsgDefIdr','pacs.008.001.08');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|BizSvc','IPS');
CkXml_UpdateChildContent(xmlToSign,'Body|AppHdr|CreDt','2017-09-13T18:18:00Z');
CkXml_UpdateAttrAt(xmlToSign,'Body|Document',True,'xmlns','urn:iso:std:iso:20022:tech:xsd:pacs.008.001.08');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|GrpHdr|MsgId','ZZZZZZZZAXXX999999999999999999999');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|GrpHdr|CreDtTm','2017-09-13T18:18:00');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|GrpHdr|NbOfTxs','1');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|GrpHdr|SttlmInf|SttlmMtd','CLRG');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|PmtId|EndToEndId','NOTPROVIDED');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|PmtId|TxId','ZZZZZZZZAXXX999999999999999999999');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|PmtTpInf|ClrChanl','RTNS');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|PmtTpInf|LclInstrm|Prtry','CSCT');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|PmtTpInf|CtgyPurp|Prtry','001');
CkXml_UpdateAttrAt(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|IntrBkSttlmAmt',True,'Ccy','JOD');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|IntrBkSttlmAmt','71.12');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|IntrBkSttlmDt','2018-01-14');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|ChrgBr','SLEV');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|InstgAgt|FinInstnId|BICFI','ZZZZZZZZ');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|InstdAgt|FinInstnId|BICFI','UBSIJOA0');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|Dbtr|Nm','John Johnson');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|DbtrAcct|Id|IBAN','JO22CITI00000000000555555555');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|DbtrAgt|FinInstnId|BICFI','ZZZZZZZZ');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|DbtrAgt|FinInstnId|Othr|Id','200004');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|DbtrAgt|FinInstnId|Othr|SchmeNm|Prtry','1700099999');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|DbtrAgtAcct|Id|IBAN','JO66CITI22222222222222222222');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|CdtrAgt|FinInstnId|BICFI','UBSIJOA0');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|CdtrAgt|FinInstnId|Othr|Id','210027');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|CdtrAgt|FinInstnId|Othr|SchmeNm|Prtry','1400199999');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|CdtrAgtAcct|Id|IBAN','JO44UBSI33333333333333333333');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|Cdtr|Nm','Omega Jones');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|CdtrAcct|Id|IBAN','JO95UBSI00000000000777777777');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|InstrForNxtAgt|InstrInf','/BNF/Details');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|Purp|Prtry','5814');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|RgltryRptg|Dtls|Inf','SOMEINFORMATIONABOUTPAYMENT-1');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|RgltryRptg|Dtls|Inf[1]','SOMEINFORMATIONABOUTPAYMENT-2');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|RgltryRptg|Dtls|Inf[2]','SOMEINFORMATIONABOUTPAYMENT-3');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|Tax|Cdtr|TaxId','9900083901');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|Tax|Dbtr|TaxId','1000387561');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|RmtInf|Ustrd','EDV UCUN ODENIR');
CkXml_UpdateChildContent(xmlToSign,'Body|Document|FIToFICstmrCdtTrf|CdtTrfTxInf|RmtInf|Ustrd[1]','EXTRA INFO');

// The following XML is to be signed:

// <?xml version="1.0" encoding="UTF-8"?>
// <DataPDU xmlns="urn:cma:stp:xsd:stp.1.0">
// 	<Body>
// 		<AppHdr xmlns="urn:iso:std:iso:20022:tech:xsd:head.001.001.01">
// 			<Fr>
// 				<FIId>
// 					<FinInstnId>
// 						<BICFI>ZZZZZZZZ</BICFI>
// 					</FinInstnId>
// 				</FIId>
// 			</Fr>
// 			<To>
// 				<FIId>
// 					<FinInstnId>
// 						<BICFI>YYYYYYYYYY</BICFI>
// 					</FinInstnId>
// 				</FIId>
// 			</To>
// 			<BizMsgIdr>ZZZZZZZZAXXX999999999999999999999</BizMsgIdr>
// 			<MsgDefIdr>pacs.008.001.08</MsgDefIdr>
// 			<BizSvc>IPS</BizSvc>
// 			<CreDt>2017-09-13T18:18:00Z</CreDt>
// 		</AppHdr>
// 		<Document xmlns="urn:iso:std:iso:20022:tech:xsd:pacs.008.001.08">
// 			<FIToFICstmrCdtTrf>
// 				<GrpHdr>
// 					<MsgId>ZZZZZZZZAXXX999999999999999999999</MsgId>
// 					<CreDtTm>2017-09-13T18:18:00</CreDtTm>
// 					<NbOfTxs>1</NbOfTxs>
// 					<SttlmInf>
// 						<SttlmMtd>CLRG</SttlmMtd>
// 					</SttlmInf>
// 				</GrpHdr>
// 				<CdtTrfTxInf>
// 					<PmtId>
// 						<EndToEndId>NOTPROVIDED</EndToEndId>
// 						<TxId>ZZZZZZZZAXXX999999999999999999999</TxId>
// 					</PmtId>
// 					<PmtTpInf>
// 						<ClrChanl>RTNS</ClrChanl>
// 						<LclInstrm>
// 							<Prtry>CSCT</Prtry>
// 						</LclInstrm>
// 						<CtgyPurp>
// 							<Prtry>001</Prtry>
// 						</CtgyPurp>
// 					</PmtTpInf>
// 					<IntrBkSttlmAmt Ccy="JOD">71.12</IntrBkSttlmAmt>
// 					<IntrBkSttlmDt>2018-01-14</IntrBkSttlmDt>
// 					<ChrgBr>SLEV</ChrgBr>
// 					<InstgAgt>
// 						<FinInstnId>
// 							<BICFI>ZZZZZZZZ</BICFI>
// 						</FinInstnId>
// 					</InstgAgt>
// 					<InstdAgt>
// 						<FinInstnId>
// 							<BICFI>UBSIJOA0</BICFI>
// 						</FinInstnId>
// 					</InstdAgt>
// 					<Dbtr>
// 						<Nm>John Johnson</Nm>
// 					</Dbtr>
// 					<DbtrAcct>
// 						<Id>
// 							<IBAN>JO22CITI00000000000555555555</IBAN>
// 						</Id>
// 					</DbtrAcct>
// 					<DbtrAgt>
// 						<FinInstnId>
// 							<BICFI>ZZZZZZZZ</BICFI>
// 							<Othr>
// 								<Id>200004</Id>
// 								<SchmeNm>
// 									<Prtry>1700089999</Prtry>
// 								</SchmeNm>
// 							</Othr>
// 						</FinInstnId>
// 					</DbtrAgt>
// 					<DbtrAgtAcct>
// 						<Id>
// 							<IBAN>JO66CITI22222222222222222222</IBAN>
// 						</Id>
// 					</DbtrAgtAcct>
// 					<CdtrAgt>
// 						<FinInstnId>
// 							<BICFI>UBSIJOA0</BICFI>
// 							<Othr>
// 								<Id>210027</Id>
// 								<SchmeNm>
// 									<Prtry>1400199999</Prtry>
// 								</SchmeNm>
// 							</Othr>
// 						</FinInstnId>
// 					</CdtrAgt>
// 					<CdtrAgtAcct>
// 						<Id>
// 							<IBAN>JO44UBSI33333333333333333333</IBAN>
// 						</Id>
// 					</CdtrAgtAcct>
// 					<Cdtr>
// 						<Nm>Omega Jones</Nm>
// 					</Cdtr>
// 					<CdtrAcct>
// 						<Id>
// 							<IBAN>JO95UBSI00000000000777777777</IBAN>
// 						</Id>
// 					</CdtrAcct>
// 					<InstrForNxtAgt>
// 						<InstrInf>/BNF/Details</InstrInf>
// 					</InstrForNxtAgt>
// 					<Purp>
// 						<Prtry>5814</Prtry>
// 					</Purp>
// 					<RgltryRptg>
// 						<Dtls>
// 							<Inf>SOMEINFORMATIONABOUTPAYMENT-1</Inf>
// 							<Inf>SOMEINFORMATIONABOUTPAYMENT-2</Inf>
// 							<Inf>SOMEINFORMATIONABOUTPAYMENT-3</Inf>
// 						</Dtls>
// 					</RgltryRptg>
// 					<Tax>
// 						<Cdtr>
// 							<TaxId>9900083901</TaxId>
// 						</Cdtr>
// 						<Dbtr>
// 							<TaxId>1000387561</TaxId>
// 						</Dbtr>
// 					</Tax>
// 					<RmtInf>
// 						<Ustrd>EDV UCUN ODENIR</Ustrd>
// 						<Ustrd>EXTRA INFO</Ustrd>
// 					</RmtInf>
// 				</CdtTrfTxInf>
// 			</FIToFICstmrCdtTrf>
// 		</Document>
// 	</Body>
// </DataPDU>

gen := CkXmlDSigGen_Create();

CkXmlDSigGen_putSigLocation(gen,'DataPDU|Body|AppHdr|Sgntr');
CkXmlDSigGen_putSigLocationMod(gen,0);
CkXmlDSigGen_putSigNamespacePrefix(gen,'ds');
CkXmlDSigGen_putSigNamespaceUri(gen,'http://www.w3.org/2000/09/xmldsig#');
CkXmlDSigGen_putSignedInfoCanonAlg(gen,'EXCL_C14N');
CkXmlDSigGen_putSignedInfoDigestMethod(gen,'sha256');

// Set the KeyInfoId before adding references..
CkXmlDSigGen_putKeyInfoId(gen,'_f9f2c543-e50a-4a50-bd91-50155d27f7e2');

// Create an Object to be added to the Signature.
object1 := CkXml_Create();
CkXml_putTag(object1,'xades:QualifyingProperties');
CkXml_AddAttribute(object1,'xmlns:xades','http://uri.etsi.org/01903/v1.3.2#');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties',True,'Id','_4ed8e0ed-f47c-4262-909b-0458532ce7aa-signedprops');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime','TO BE GENERATED BY CHILKAT');

CkXmlDSigGen_AddObject(gen,'',CkXml__getXml(object1),'','');

// -------- Reference 1 --------
CkXmlDSigGen_AddSameDocRef(gen,'_f9f2c543-e50a-4a50-bd91-50155d27f7e2','sha256','EXCL_C14N','','');

// -------- Reference 2 --------
CkXmlDSigGen_AddObjectRef(gen,'_4ed8e0ed-f47c-4262-909b-0458532ce7aa-signedprops','sha256','EXCL_C14N','','http://uri.etsi.org/01903/v1.3.2#SignedProperties');

// -------- Reference 3 --------
CkXmlDSigGen_AddSameDocRef(gen,'','sha256','EXCL_C14N','','');

// Provide a certificate + private key. (PFX password is test123)
cert := CkCert_Create();
success := CkCert_LoadPfxFile(cert,'qa_data/pfx/cert_test123.pfx','test123');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;
CkXmlDSigGen_SetX509Cert(gen,cert,True);

CkXmlDSigGen_putKeyInfoType(gen,'X509Data');
CkXmlDSigGen_putX509Type(gen,'IssuerSerial');

// Load XML to be signed...
sbXml := CkStringBuilder_Create();
CkXml_GetXmlSb(xmlToSign,sbXml);

// Can alternatively use "CompactSignedXml"
CkXmlDSigGen_putBehaviors(gen,'IndentedSignature,LocalSigningTime');

// Sign the XML...
success := CkXmlDSigGen_CreateXmlDSigSb(gen,sbXml);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkXmlDSigGen__lastErrorText(gen));
    Exit;
  end;
// -----------------------------------------------

// Save the signed XML to a file.
success := CkStringBuilder_WriteFile(sbXml,'qa_output/mx_signed.xml','utf-8',False);

Memo1.Lines.Add(CkStringBuilder__getAsString(sbXml));

// ----------------------------------------
// Verify the signatures we just produced...
verifier := CkXmlDSig_Create();
success := CkXmlDSig_LoadSignatureSb(verifier,sbXml);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkXmlDSig__lastErrorText(verifier));
    Exit;
  end;

// Important: The above signature did not include the full X.509 certificate.
// You must call verifier.SetPublicKey to provide the public key of the certificate required for validation.

verifyCert := CkCert_Create();
success := CkCert_LoadFromFile(verifyCert,'qa_data/certs/cert_test123.cer');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(verifyCert));
    Exit;
  end;
pubKey := CkCert_ExportPublicKey(verifyCert);
CkXmlDSig_SetPublicKey(verifier,pubKey);
CkPublicKey_Dispose(pubKey);

numSigs := CkXmlDSig_getNumSignatures(verifier);
verifyIdx := 0;
while verifyIdx < numSigs do
  begin
    CkXmlDSig_putSelector(verifier,verifyIdx);
    verified := CkXmlDSig_VerifySignature(verifier,True);
    if (verified <> True) then
      begin
        Memo1.Lines.Add(CkXmlDSig__lastErrorText(verifier));
        Exit;
      end;
    verifyIdx := verifyIdx + 1;
  end;

Memo1.Lines.Add('All signatures were successfully verified.');

CkXml_Dispose(xmlToSign);
CkXmlDSigGen_Dispose(gen);
CkXml_Dispose(object1);
CkCert_Dispose(cert);
CkStringBuilder_Dispose(sbXml);
CkXmlDSig_Dispose(verifier);
CkCert_Dispose(verifyCert);

end;
 

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