(Delphi ActiveX) XAdES XML Signature using ARSS (Aruba Remote Signing Service)

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Demonstrates how to sign XML using ARSS (Aruba Remote Signing Service).

Note: This example requires Chilkat v9.5.0.96 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
sbXml: TChilkatStringBuilder;
bCrlf: Integer;
cert: TChilkatCert;
success: Integer;
jsonArss: TChilkatJsonObject;
gen: TChilkatXmlDSigGen;
bUsePrivateKey: Integer;

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

// --------------------------------------------------------------------------------
// Also see Chilkat's Online WSDL Code Generator
// to generate code and SOAP Request and Response XML for each operation in a WSDL.
// --------------------------------------------------------------------------------

// Create the XML to be signed.
sbXml := TChilkatStringBuilder.Create(Self);

bCrlf := 1;
sbXml.AppendLine('<?xml version="1.0" encoding="UTF-8" standalone="no" ?>',bCrlf);
sbXml.AppendLine('<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">',bCrlf);
sbXml.AppendLine('    <SOAP-ENV:Header>',bCrlf);
sbXml.AppendLine('        <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" SOAP-ENV:mustUnderstand="1"></wsse:Security>',bCrlf);
sbXml.AppendLine('    </SOAP-ENV:Header>',bCrlf);
sbXml.AppendLine('    <SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body">',bCrlf);
sbXml.AppendLine('        <z:FooBar xmlns:z="http://example.com" />',bCrlf);
sbXml.AppendLine('    </SOAP-ENV:Body>',bCrlf);
sbXml.AppendLine('</SOAP-ENV:Envelope>',bCrlf);

// Specify the signing certificate and the ARSS credentials

// Load the certificate used for signing.  The certificate's private key is stored on 
// the Aruba.it server and the signing will happen remotely using the
// ARSS (Aruba Remote Signing Service).
// However, we still need the certificate locally (without private key).
cert := TChilkatCert.Create(Self);
success := cert.LoadFromFile('qa_data/certs/myCert.cer');
if (success = 0) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

// To sign using the Aruba Remote Signing Service, 
// add the following lines of code to specify your authentication credentials,
// and the ID of the certificate w/ private key on the server to be used.
jsonArss := TChilkatJsonObject.Create(Self);

// Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
jsonArss.UpdateString('service','ARSS');
// Specify the certificate ID, such as "AS0"
// This certificate should match the certificate loaded in the above code.
jsonArss.UpdateString('certID','YOUR_ARSS_CERT_ID');
jsonArss.UpdateString('otpPwd','YOUR_OTP_PWD');
jsonArss.UpdateString('typeOtpAuth','demoprod');
jsonArss.UpdateString('user','YOUR_ARSS_USERNAME');
jsonArss.UpdateString('userPWD','YOUR_ARSS_PASSWORD');
success := cert.SetCloudSigner(jsonArss.ControlInterface);

// Prepare for signing...
gen := TChilkatXmlDSigGen.Create(Self);

// Indicate where the Signature will be inserted.
gen.SigLocation := 'SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security';

// Add a reference to the fragment of the XML to be signed.

// Note: "Body" refers to the XML element having an "id" equal to "Body", where "id" is case insensitive
// and where any namespace might qualify the attribute.  In this case, the SOAP-ENV:Body fragment is signed
// NOT because the tag = "Body", but because it has SOAP-SEC:id="Body"
gen.AddSameDocRef('Body','sha1','EXCL_C14N','','');

// (You can read about the SignedInfoPrefixList in the online reference documentation.  It's optional..)
gen.SignedInfoPrefixList := 'wsse SOAP-ENV';

gen.KeyInfoType := 'X509Data';
gen.X509Type := 'IssuerSerial';

bUsePrivateKey := 1;
success := gen.SetX509Cert(cert.ControlInterface,bUsePrivateKey);
if (success <> 1) then
  begin
    Memo1.Lines.Add(gen.LastErrorText);

    Exit;
  end;
// Everything's specified.  Now create and insert the Signature
// (The actual signing of the hash will happen on the Aruba server.)
success := gen.CreateXmlDSigSb(sbXml.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(gen.LastErrorText);
    Exit;
  end;

// Examine the XML with the digital signature inserted
Memo1.Lines.Add(sbXml.GetAsString());
end;