(Delphi DLL) Load P7B and List Certificates

Demonstrates how to load a .p7b containing certificates and accesses each individual certificate.

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, Global, Cert, Pem;

...

procedure TForm1.Button1Click(Sender: TObject);
var
chilkatGlob: HCkGlobal;
success: Boolean;
pem: HCkPem;
i: Integer;
numCerts: Integer;
cert: HCkCert;

begin
// Unlock the Chilkat API.
// Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
// by calling UnlockBundle.  It requires a Bundle unlock code.
chilkatGlob := CkGlobal_Create();
success := CkGlobal_UnlockBundle(chilkatGlob,'Anything for 30-day trial.');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkGlobal__lastErrorText(chilkatGlob));
    Exit;
  end;

pem := CkPem_Create();

// Load the .p7b from a file.
success := CkPem_LoadP7bFile(pem,'/Users/chilkat/testData/p7b/myCerts.p7b');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkPem__lastErrorText(pem));
    Exit;
  end;

numCerts := CkPem_getNumCerts(pem);
if (numCerts = 0) then
  begin
    Memo1.Lines.Add(('Error: Expected the .p7b to contain certificates.'));
    Exit;
  end;

// Access each certificate and show the DN (Distinguished Name)
for i := 1 to numCerts do
  begin
    cert := CkPem_GetCert(pem,i - 1);
    Memo1.Lines.Add(IntToStr(i) + ': ' + CkCert__subjectDN(cert));
    CkCert_Dispose(cert);
  end;

CkGlobal_Dispose(chilkatGlob);
CkPem_Dispose(pem);

end;