Delphi ActiveX Requires Chilkat v11.0.0+

Iterate Keys and Certs in PEM

See more PEM Examples

Demonstrates how to access each of the private keys and certs contained within a PEM. Delphi ActiveX

var
success: Integer;
pem: TChilkatPem;
password: WideString;
pemContent: WideString;
numPrivateKeys: Integer;
i: Integer;
privKey: TPrivateKey;
cert: TChilkatCert;
numCerts: Integer;

begin
success := 0;

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

pem := TChilkatPem.Create(Self);

//  Load the PEM from a file.
//  If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
password := 'myPassword';
success := pem.LoadPemFile('../myPemFiles/myPem.pem',password);
if (success = 0) then
  begin
    Memo1.Lines.Add(pem.LastErrorText);
    Exit;
  end;

//  Note: If the app already has the PEM pre-loaded in a string variable, then load it 
//  by calling LoadPem instead.  
pemContent := '... the PEM contents ...';
success := pem.LoadPem(pemContent,password);
//  Check for success as before..

//  Iterate over the private keys.
numPrivateKeys := pem.NumPrivateKeys;
i := 0;

privKey := TPrivateKey.Create(Self);
while i < numPrivateKeys do
  begin
    pem.PrivateKeyAt(i,privKey.ControlInterface);
    Memo1.Lines.Add('Private Key ' + IntToStr(i) + ' is ' + IntToStr(privKey.BitLength) + ' in length');
    i := i + 1;
  end;

//  Iterate over the certificates.
cert := TChilkatCert.Create(Self);
numCerts := pem.NumCerts;
i := 0;
while i < numCerts do
  begin
    pem.CertAt(i,cert.ControlInterface);
    Memo1.Lines.Add('Certificate ' + IntToStr(i) + ' : ' + cert.SubjectDN);
    i := i + 1;
  end;