Delphi ActiveX Requires Chilkat v11.0.0+

Generate RSA Public/Private Key Pair and Export to PEM

See more RSA Examples

_LANGUAGE_ example code showing how to generate an RSA public/private key pair and export to PEM files. Delphi ActiveX

var
success: Integer;
rsa: TChilkatRsa;
privKey: TPrivateKey;
pubKey: TPublicKey;

begin
success := 0;

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

rsa := TChilkatRsa.Create(Self);

//  Generate a 2048-bit key.  Chilkat RSA supports
//  key sizes ranging from 512 bits to 8192 bits.
privKey := TPrivateKey.Create(Self);
success := rsa.GenKey(2048,privKey.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(rsa.LastErrorText);
    Exit;
  end;

pubKey := TPublicKey.Create(Self);
privKey.ToPublicKey(pubKey.ControlInterface);

//  Save the private key in PEM format:
success := privKey.SavePemFile('privateKey.pem');
if (success = 0) then
  begin
    Memo1.Lines.Add(privKey.LastErrorText);
    Exit;
  end;

//  Save the public key in PEM format:
success := pubKey.SavePemFile(0,'publicKey.pem');
if (success = 0) then
  begin
    Memo1.Lines.Add(pubKey.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Success.');