Delphi DLL

Export a Private Key as XML

Demonstrates the Chilkat PrivateKey.GetXml method, which exports the key in Chilkat-compatible XML (for example an RSAKeyValue element). It takes no arguments; the XML is not encrypted.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The XML key format belongs to the .NET/XML-DSIG world, where keys are represented as XML elements. Exporting to it is what you do to hand a key to .NET code or a system built around XML signatures — the inverse of LoadXml. It is plaintext, so the exported XML must be protected like any unencrypted key.

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var
success: Boolean;
privKey: HCkPrivateKey;
xml: PWideChar;

begin
success := False;

//  Load a private key to export.
privKey := CkPrivateKey_Create();
success := CkPrivateKey_LoadPemFile(privKey,'qa_data/private.pem');
if (success = False) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    Exit;
  end;

//  Export in Chilkat-compatible XML (for example an RSAKeyValue element).  The XML is not
//  encrypted.
xml := CkPrivateKey__getXml(privKey);
if (CkPrivateKey_getLastMethodSuccess(privKey) = False) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    Exit;
  end;
Memo1.Lines.Add(xml);

CkPrivateKey_Dispose(privKey);