Delphi ActiveX Requires Chilkat v11.0.0+

Use Base64 RSA Key to Encrypt

See more RSA Examples

Loads a Base64 RSA key and uses it to encrypt a string, returning the result in base64. Delphi ActiveX

var
success: Integer;
pubkey: TPublicKey;
rsa: TChilkatRsa;
encryptedStr: WideString;

begin
success := 0;

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

pubkey := TPublicKey.Create(Self);

success := pubkey.LoadBase64('MIICdgIBADA ... A9PXLk+j5A==');
if (success = 0) then
  begin
    Memo1.Lines.Add(pubkey.LastErrorText);
    Exit;
  end;

rsa := TChilkatRsa.Create(Self);

success := rsa.UsePublicKey(pubkey.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(rsa.LastErrorText);
    Exit;
  end;

rsa.EncodingMode := 'base64';

encryptedStr := rsa.EncryptStringENC('12345678',0);

Memo1.Lines.Add(encryptedStr);