Pascal (Lazarus/Delphi)

Generate CSR with Uncommon Fields

See more CSR Examples

Demonstrates how to generate a new RSA key and a Certificate Signing Request (CSR) for this:

csr.common.name=Admin forInformation-MainShop
csr.serial.number=1-XYZ|2-2.0|3-999695
csr.organization.identifier=990099994100099
csr.organization.unit.name=9999910000
csr.organization.name=9999910000
csr.country.name=SA
csr.invoice.type=1100
csr.location.address=King Fahed Road
csr.industry.business.category=MainOffice

Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.FileAccess,
  Chilkat.PrivateKey,
  Chilkat.Rsa,
  Chilkat.Csr;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  rsa: TRsa;
  privKey: TPrivateKey;
  csr: TCsr;
  pemStr: string;
  fac: TFileAccess;

begin
  success := False;

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

  //  First generate an RSA private key.
  rsa := TRsa.Create;

  //  Generate a random 2048-bit RSA key.
  privKey := TPrivateKey.Create;
  success := rsa.GenKey(2048,privKey);
  if (success = False) then
    begin
      WriteLn(rsa.LastErrorText);
      Exit;
    end;

  //  Create the CSR object and set properties.
  csr := TCsr.Create;

  csr.CommonName := 'Admin forInformation-MainShop';

  //  Country Name (2 letter code)
  csr.Country := 'SA';

  //  Organization Name (eg, company)
  csr.Company := '9999910000';

  //  Organizational Unit Name (eg, secion/division)
  csr.CompanyDivision := '9999910000';

  //  See https://www.alvestrand.no/objectid/2.5.4.html for OIDs for the following fields:

  //  csr.serial.number=1-XYZ|2-2.0|3-999695
  //  2.5.4.5 - id-at-serialNumber 
  csr.SetSubjectField('2.5.4.5','1-XYZ|2-2.0|3-999695','UTF8String');

  //  csr.organization.identifier=990099994100099
  //  2.5.4.45 - id-at-uniqueIdentifier   Don't know if this is correct.
  csr.SetSubjectField('2.5.4.45','1100','UTF8String');

  //  csr.invoice.type=1100
  //  Don't know what this OID would be...
  csr.SetSubjectField('2.5.4.99','1100','UTF8String');

  //  csr.location.address=King Fahed Road
  //  2.5.4.9 - id-at-streetAddress 
  csr.SetSubjectField('2.5.4.9','King Fahed Road','UTF8String');

  //  csr.industry.business.category=MainOffice
  //  2.5.4.15 - id-at-businessCategory 
  csr.SetSubjectField('2.5.4.15','MainOffice','UTF8String');

  //  Create the CSR using the private key.
  pemStr := csr.GenCsrPem(privKey);
  if (csr.LastMethodSuccess <> True) then
    begin
      WriteLn(csr.LastErrorText);
      Exit;
    end;

  //  Save the private key and CSR to a files.
  privKey.SavePkcs8EncryptedPemFile('password','qa_output/privKey1.pem');

  fac := TFileAccess.Create;
  fac.WriteEntireTextFile('qa_output/csr1.pem',pemStr,'utf-8',False);

  //  Show the CSR.
  WriteLn(pemStr);

  //  Sample output:
  //  The CSR PEM can be checked here:
  //  https://www.networking4all.com/en/support/tools/csr+check/
  //  Copy-and-paste the PEM into the online CSR Decoding / CSR Verification form

  //  	-----BEGIN CERTIFICATE REQUEST-----
  //  	MIIC6jCCAdICAQAwgaQxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
  //  ...
  //  ...
  //  	hJnYCvjzFz4O9VtT+JtP9ldRHWV3KpZ8ne3AjD+F
  //  	-----END CERTIFICATE REQUEST-----


  rsa.Free;
  privKey.Free;
  csr.Free;
  fac.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.