Delphi ActiveX

Example: Crypt2.SetDecryptCert method

Demonstrates how to call the SetDecryptCert method. Delphi ActiveX

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
success: Integer;
cert: TChilkatCert;
decrypt: TChilkatCrypt2;
bd: TChilkatBinData;

begin
success := 0;

cert := TChilkatCert.Create(Self);

success := cert.LoadPfxFile('c:/pfx_files/my.pfx','password');
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

decrypt := TChilkatCrypt2.Create(Self);
decrypt.CryptAlgorithm := 'pki';

success := decrypt.SetDecryptCert(cert.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(decrypt.LastErrorText);
    Exit;
  end;

bd := TChilkatBinData.Create(Self);
success := bd.LoadFile('c:/someDir/pkcs7_encrypted.dat');

success := decrypt.DecryptBd(bd.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(decrypt.LastErrorText);
    Exit;
  end;

// bd contains the decrypted content.
end;