Delphi DLL 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 DLL

var
success: Boolean;
rsa: HCkRsa;
privKey: HCkPrivateKey;
pubKey: HCkPublicKey;

begin
success := False;

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

rsa := CkRsa_Create();

//  Generate a 2048-bit key.  Chilkat RSA supports
//  key sizes ranging from 512 bits to 8192 bits.
privKey := CkPrivateKey_Create();
success := CkRsa_GenKey(rsa,2048,privKey);
if (success = False) then
  begin
    Memo1.Lines.Add(CkRsa__lastErrorText(rsa));
    Exit;
  end;

pubKey := CkPublicKey_Create();
CkPrivateKey_ToPublicKey(privKey,pubKey);

//  Save the private key in PEM format:
success := CkPrivateKey_SavePemFile(privKey,'privateKey.pem');
if (success = False) then
  begin
    Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
    Exit;
  end;

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

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

CkRsa_Dispose(rsa);
CkPrivateKey_Dispose(privKey);
CkPublicKey_Dispose(pubKey);