Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATCERTIFICATELib_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: TChilkatCert;
success: Integer;

begin
cert := TChilkatCert.Create(Self);

//  LoadFromFile will load virtually any certificate format file.
//  It will auto-recognize the format and load appropiately.
//  A base64-encoded DER X.509 certificate file
//  contains the binary DER in base64 encoded form.
//  Therefore, it is a text file that will begin like this:
//  -----BEGIN CERTIFICATE-----
//  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
//  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
//  ...

success := cert.LoadFromFile('/Users/chilkat/testData/cer/chilkat_base64.cer');
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

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

Memo1.Lines.Add('Common Name:' + cert.SubjectCN);
Memo1.Lines.Add('Issuer Common Name:' + cert.IssuerCN);

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


end;