(Delphi DLL) Find Certificate by Serial Number

See more Cert Store Examples

Demonstrates how to find a certificate having the specified hexadecimal serial number.

Note: Requires Chilkat v10.1.2 or later.

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, CertStore, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
certStore: HCkCertStore;
argNotUsed: PWideChar;
success: Boolean;
hexSerial: PWideChar;
json: HCkJsonObject;
cert: HCkCert;

begin
certStore := CkCertStore_Create();

// This example will search the certs on connected USB tokens and smartcards.
argNotUsed := '';
success := CkCertStore_OpenSmartcard(certStore,argNotUsed);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCertStore__lastErrorText(certStore));
    Exit;
  end;

// Find the certificate having a serial number = "48FC93B46055948D36A7C98A89D69416".
hexSerial := '48FC93B46055948D36A7C98A89D69416';
json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'serial',hexSerial);

cert := CkCert_Create();
success := CkCertStore_FindCert(certStore,json,cert);
if (success = True) then
  begin
    // Show the serial number and subject CN
    Memo1.Lines.Add('Found: ' + CkCert__serialNumber(cert) + ', ' + CkCert__subjectCN(cert));
  end
else
  begin
    Memo1.Lines.Add('Not found.');
  end;

CkCertStore_Dispose(certStore);
CkJsonObject_Dispose(json);
CkCert_Dispose(cert);

end;