(Delphi DLL) Load Certificate from PFX (PKCS#12)

Loads a digital certificate (and private key, if available) from a PFX file.(also known as PKCS#12)

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, Cert, PrivateKey;

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: HCkCert;
success: Boolean;
pfxFilename: PWideChar;
pfxPassword: PWideChar;
privKey: HCkPrivateKey;
pemPassword: PWideChar;
pemPath: PWideChar;

begin
cert := CkCert_Create();

// Load from the PFX file
pfxFilename := '/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx';
pfxPassword := 'test';

// A PFX typically contains certificates in the chain of authentication.
// The Chilkat cert object will choose the certificate w/
// private key farthest from the root authority cert.
// To access all the certificates in a PFX, use the 
// Chilkat certificate store object instead.
success := CkCert_LoadPfxFile(cert,pfxFilename,pfxPassword);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

// Get some information about the digital certificate, 
// then get the private key...

// DN = "Distinguished Name"
Memo1.Lines.Add('SubjectDN:' + CkCert__subjectDN(cert));

Memo1.Lines.Add('Common Name:' + CkCert__subjectCN(cert));
Memo1.Lines.Add('Issuer Common Name:' + CkCert__issuerCN(cert));

Memo1.Lines.Add('Serial Number:' + CkCert__serialNumber(cert));

// Now for the private key...

privKey := CkCert_ExportPrivateKey(cert);
if (CkCert_getLastMethodSuccess(cert) = False) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

// The private key object may be used in any Chilkat methods
// (in other objects/classes) that expect a private key argument.

// In this case, save the private key to a PKCS8 Encrypted PEM format file:
pemPassword := 'secret';
pemPath := '/Users/chilkat/testData/pem/chilkat_privKey.pem';
success := CkPrivateKey_SavePkcs8EncryptedPemFile(privKey,pemPassword,pemPath);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    CkPrivateKey_Dispose(privKey);
    Exit;
  end;

CkPrivateKey_Dispose(privKey);
Memo1.Lines.Add('Private key saved to PKCS8 Encrypted PEM...');

CkCert_Dispose(cert);

end;