Delphi ActiveX

Load a Private Key from an XML File

Demonstrates the Chilkat PrivateKey.LoadXmlFile method, which loads a private key from an XML file. The only argument is the file path. Chilkat recognizes RSA, DSA, EC, and Ed25519 XML produced by GetXml, and auto-detects other supported unencrypted representations.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: The file-based form of LoadXml, for a key saved as an XML file — typically one written by SaveXmlFile or exported from .NET. Because it also inspects the content, it will load other unencrypted representations if the file turns out not to be XML.

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var
success: Integer;
privKey: TPrivateKey;

begin
success := 0;

//  Demonstrates the PrivateKey.LoadXmlFile method, which loads a private key from an XML file.  The
//  only argument is the file path.  Chilkat recognizes RSA, DSA, EC, and Ed25519 XML produced by
//  GetXml, and auto-detects other supported unencrypted representations.

privKey := TPrivateKey.Create(Self);

success := privKey.LoadXmlFile('qa_data/private_key.xml');
if (success = 0) then
  begin
    Memo1.Lines.Add(privKey.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Loaded a ' + privKey.KeyType + ' private key.');