Delphi DLL 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 DLL

var
success: Boolean;
pubkey: HCkPublicKey;
rsa: HCkRsa;
encryptedStr: PWideChar;

begin
success := False;

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

pubkey := CkPublicKey_Create();

success := CkPublicKey_LoadBase64(pubkey,'MIICdgIBADA ... A9PXLk+j5A==');
if (success = False) then
  begin
    Memo1.Lines.Add(CkPublicKey__lastErrorText(pubkey));
    Exit;
  end;

rsa := CkRsa_Create();

success := CkRsa_UsePublicKey(rsa,pubkey);
if (success = False) then
  begin
    Memo1.Lines.Add(CkRsa__lastErrorText(rsa));
    Exit;
  end;

CkRsa_putEncodingMode(rsa,'base64');

encryptedStr := CkRsa__encryptStringENC(rsa,'12345678',False);

Memo1.Lines.Add(encryptedStr);

CkPublicKey_Dispose(pubkey);
CkRsa_Dispose(rsa);