Delphi DLL

Load P7B and Iterate Certificates

See more PEM Examples

Demonstrates how to load a .p7b containing one or more certificates access each of them. Delphi DLL

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

...

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

begin
success := False;

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

success := False;

// The Chilkat PEM class was introduced in v9.5.0.49.  
// It requires the bundle to be unlocked, as shown above.
pem := CkPem_Create();

// Load the .p7b from a file.
success := CkPem_LoadP7bFile(pem,'../myCertFiles/myP7b.p7b');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkPem__lastErrorText(pem));
    Exit;
  end;

// Note: If the app already has the p7b loaded in memory, the LoadP7b method
// may be called instead.  (see the online reference documentation)

// Iterate over the certificates.
numCerts := CkPem_getNumCerts(pem);
i := 0;

while i < numCerts do
  begin

    cert := CkPem_GetCert(pem,i);
    Memo1.Lines.Add('Certificate ' + IntToStr(i) + ' : ' + CkCert__subjectDN(cert));
    CkCert_Dispose(cert);

    i := i + 1;
  end;

CkPem_Dispose(pem);

end;